Relevant bibliographies by topics / Low cycle fatigue

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Low cycle fatigue'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 June 2024

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Journal articles on the topic "Low cycle fatigue"

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Kim, Younghune, and Woonbong Hwang. "High-Cycle, Low-Cycle, Extremely Low-Cycle Fatigue and Monotonic Fracture Behaviors of Low-Carbon Steel and Its Welded Joint." Materials 12, no. 24 (December 9, 2019): 4111. http://dx.doi.org/10.3390/ma12244111.

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Low-carbon steels are commonly used in welded steel structures and are exposed to various fatigue conditions, depending on the application. We demonstrate that the various transitions in the fracture mode during fatigue testing can be distinguished by their different cyclic response curves and microstructural features after fracture. Fractography, surface damage micrographs, and microstructural evolution clearly indicated the transition of the fracture modes from high-cycle to low-cycle, extremely low-cycle fatigue, and monotonic behavior. The high-cycle fatigue mode showed initial cyclic softening, followed by cyclic stabilization, and showed inclusion-induced crack initiation at fish-eyes, while the low-cycle fatigue mode showed initial cyclic hardening followed by cyclic stabilization, where fractography images showed obvious striations. In addition, the extremely low-cycle fatigue mode showed no cyclic stabilization after initial cyclic hardening, which was characterized by quasi-cleavage fractures with a few micro-dimples and transgranular cracking, while the monotonic fracture mode predominantly showed micro-dimples.
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Mao, Ping Li, Zheng Liu, Yang Li, and Li Jia Chen. "Low Cycle Fatigue Behavior of As-Extruded AZ31 Magnesium Alloy." Materials Science Forum 686 (June 2011): 202–7. http://dx.doi.org/10.4028/www.scientific.net/msf.686.202.

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The investigation on fatigue behavior and fracture surfaces of fatigued specimens of as-extruded AZ31 magnesium alloy can provide a reliable theoretical foundation for both fatigue resistant design and reasonable application of magnesium alloys. Through total-strain-amplitude controlled fatigue tests and analysis on fracture surfaces of fatigued specimens, the behavior of cyclic stress response and fatigue life as well as fracture mechanism were identified for as-extruded AZ31 magnesium alloy. The experimental results show that the extruded AZ31 alloy exhibits significant cyclic strain hardening, the relation between elastic strain amplitude, plastic strain amplitude and reversals to failure can be described by Basquin and Coffin-Manson equations respectively. In addition, it has been found that fatigue cracks initiate and propagate in a transgranular mode.
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Abdel Wahab, Magd, Irfan Hilmy, and Reza Hojjati-Talemi. "On the Use of Low and High Cycle Fatigue Damage Models." Key Engineering Materials 569-570 (July 2013): 1029–35. http://dx.doi.org/10.4028/www.scientific.net/kem.569-570.1029.

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In this paper, Continuum Damage Mechanics (CDM) theory is applied to low cycle and high cycle fatigue problems. Damage evolution laws are derived from thermodynamic principles and the fatigue number of cycles to crack initiation is expressed in terms of the range of applied stresses, triaxiality function and material constants termed as damage parameters. Low cycle fatigue damage evolution law is applied to adhesively bonded single lap joint. Damage parameters as function of stress are extracted from the fatigue tests and the damage model. High cycle fatigue damage model is applied to fretting fatigue test specimens and is integrated within a Finite Element Analysis (FEA) code in order to predict the number of cycles to crack initiation. Fretting fatigue problems involve two types of analyses; namely contact mechanics and damage/fracture mechanics. The high cycle fatigue damage evolution law takes into account the effect of different parameters such as contact geometry, axial stress, normal load and tangential load.
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SHI, Jin-yuan, Yong WANG, Wang-fan LI, Zhi-cheng DENG, and Yu Yang. "ICOPE-15-C035 Crack Propagation Life under Low Cycle Fatigue and High Cycle Fatigue of Nuclear Steam Turbine Rotors." Proceedings of the International Conference on Power Engineering (ICOPE) 2015.12 (2015): _ICOPE—15——_ICOPE—15—. http://dx.doi.org/10.1299/jsmeicope.2015.12._icope-15-_131.

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Nikulin, Sergey A., Stanislav O. Rogachev, Vladislav A. Belov, Mikhail Y. Zadorozhnyy, Nikolay V. Shplis, and Mikhail M. Skripalenko. "Effect of Prolonged Thermal Exposure on Low-Cycle Bending Fatigue Resistance of Low-Carbon Steel." Metals 12, no. 2 (February 4, 2022): 281. http://dx.doi.org/10.3390/met12020281.

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Using a dynamic mechanical analyzer, the comparative studies of a low-cycle bending fatigue were carried out for AISI 1022 low-carbon steel after extreme thermal exposure, simulating the severe beyond-design-basis accident at nuclear power plants. In the as-delivered state, the steel has a high resistance to low-cycle fatigue (the fatigue strength at N = 3.5 × 104 cycles (σNf) was 360 MPa). Long-term thermal exposure led to a slight decrease in the resistance to low-cycle fatigue of steel: σNf is decreased by 9%. The influence of AISI 1022 steel structure on the characteristics of fatigue strength and fracture mechanisms is analyzed.
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Šulák, Ivo, Karel Obrtlík, and Ladislav Čelko. "High Temperature Low Cycle Fatigue Characteristics of Grit Blasted Polycrystalline Ni-Base Superalloy." Key Engineering Materials 665 (September 2015): 73–76. http://dx.doi.org/10.4028/www.scientific.net/kem.665.73.

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The present work is focused on the study of low cycle fatigue behavior of grit blasted nickel-base superalloy Inconel 713LC (IN 713LC). Grit blasting parameters are obtained. Button end specimens of IN 713LC in as-received condition and with grit blasted surface were fatigued under strain control with constant total strain amplitude in symmetrical cycle at 900 °C in air. Hardening/softening curves, cyclic stress-strain curve and fatigue life data of both materials were obtained. Both materials exhibit the same stress-strain response. It has not been observed any improvement or reduction of low cycle fatigue life in representation of total strain amplitude versus number of cycles to failure of grit blasted material in comparison with as-received material. Surface relief and fracture surface were observed in SEM. The little effect of surface treatment on fatigue characteristics is discussed.
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Fujita, Masanari, and Kenzo Miura. "Inverter and Low Cycle Fatigue." Journal of The Japan Institute of Marine Engineering 44, no. 5 (2009): 834. http://dx.doi.org/10.5988/jime.44.834.

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Halama, Radim, Martin Fusek, Ludmila Adámková, and František Fojtík. "Low-Cycle Fatigue of Aa2124t851." Transactions of the VŠB - Technical University of Ostrava, Mechanical Series 62, no. 1 (September 30, 2016): 17–24. http://dx.doi.org/10.22223/tr.2016-1/2007.

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Aoki, Yasuhiro, Mikiya Arai, Hao Zhou, Yoshikazu Ro, and Hiroshi Harada. "Low cycle fatigue of superalloys." Materials Testing 46, no. 10 (October 2004): 531–33. http://dx.doi.org/10.3139/120.100620.

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Dufailly, J., and J. Lemaitre. "Modeling Very Low Cycle Fatigue." International Journal of Damage Mechanics 4, no. 2 (April 1995): 153–70. http://dx.doi.org/10.1177/105678959500400204.

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Dissertations / Theses on the topic "Low cycle fatigue"

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Knipling, Keith Edward. "High-cycle fatigue / low-cycle fatigue interactions in Ti-6Al-4V." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/41290.

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The largest single cause of failure in fan and compressor components in the cold frontal sections of commercial and military gas turbine engines has been attributed to high cycle fatigue (HCF). Additionally, both high-cycle fatigue (HCF) and lowcycle fatigue (LCF) loadings are widely recognized as unavoidable during operation of these components and because the classic Linear Damage Rule (LDR) neglects to account for the synergistic interaction between these damage contributors, dangerous over predictions of lifetime can result. Combined low-cycle fatigue / high-cycle fatigue (HCF/LCF) loadings were investigated in smooth Ti-6Al-4V. The specimens were subjected to a variable amplitude block loading history comprised of completely-reversed (R = -1) tensioncompression overloads followed by constant-amplitude zero-tension (R = 0) minor cycles. Axial specimens were excised from forgings representative of turbine engine fan blade forgings, and consisted of approximately 60% primary α in a matrix of lamellar α + β. Data are reported for smooth specimens of Ti-6Al-4V subjected to both constant amplitude and variable amplitude loadings. The axial specimens were prepared according to two distinct specimen conditions: low stress ground and longitudinallypolished (LSG+LP) and stress-relieved and chemically milled (SR+CM) conditions. Significantly longer lives were observed for the LSG+LP specimen condition under both constant and variable amplitude loading, due to the presence of a beneficial compressive surface residual stress. The presence of this residual stress was confirmed by x-ray diffraction, and its magnitude was of the order of 180 MPa (~20% of the yield stress). In either specimen condition, no appreciable effect of periodic overloads on the life of subsequent minor cycles was observed.
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Bérard, Jean-Yves Adrien. "Low cycle fatigue behavior of a low carbon steel." Thesis, Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/20130.

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Romo, Arango Sebastian A. "Low-Cycle Fatigue of Low-Alloy Steel Welded Joints." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1573054310351145.

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Charles, C. M. "Low cycle fatigue mechanisms in CMSX-4." Thesis, University of Cambridge, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.597493.

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This thesis investigates the low-cycle fatigue behaviour of CMS-4. The focus is on R=0 load controlled fatigue, with an emphasis on deformation at 750°C. A particular aim of this research is to identify how fatigue proceeds at stress concentrators. Here, high stresses in plain bars have been compared with similar maximum stresses around the known stress concentration of a Kt-2 notch. Fatigue tests were conducted on both plain and notched specimens, across a range of stresses and temperatures, and the deformation has been imaged using TEM. The plain bars show a range of deformation mechanisms, which have been described and analysed. Of particular interest is the presence of widely spaced dipoles of single dislocations, previously noted in tensile studies. These have been imaged on slip planes, and it is shown that they are not formed by the mutual attraction of two independent dislocations, as has been previously thought. Rather, they are two sides of an á110ñ loop, separated by a region of APB. These loops are expected to expand and contract within the precipitates, and it is shown that this could account for a significant degree of plastic strain within the plain bars. Although the fracture patterns and lifetimes are very similar to those seen in the plain bars, no microstructural evidence of significant deformation is seen from TEM examination of the notched bars. Visible dislocation density is consistently extremely low, and it is seen that there is no correlation between deformation in the bulk of the plain bars, the notched bars, and failure. Hence, a new mechanism of initiation is proposed for failure below 950°C. It is proposed that initiation below 950°C is related to the extrusion of g channels at the surface of internal porosity, and the concomitant formation of subsurface voids.
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Megharbi, Ahmed. "Low cycle fatigue of FPSO ship structure." Thesis, University of Newcastle upon Tyne, 2015. http://hdl.handle.net/10443/2894.

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The phenomenon of low cycle fatigue (LCF) is characterised by high stress range, close to or above yield, and relatively low number of cycles to failure, typically below 104. In the case of tankers and Floating, Production, Storage and Offloading units (FPSO), nominal stress amplitudes lower than the yield stress may result in plastic strains due to the high stress concentrations that are typical in many of the hulls’ structural details. FPSOs are more susceptible to damage due to LCF compared to tankers, cargo and other ocean going ships. The main reasons are; the unique structure of FPSO in terms of the presence of internal turret and topsides load which affects the structural response of FPSO to dynamic and quasi-static loads, the frequent loading and unloading patterns of FPSO (i.e. unlike oil tankers which are either in full load or ballast condition) which causes the FPSO to experience the maximum hogging and sagging still water bending moment every single cycle and the condition of the sea at which the FPSO is operating (site specific environment) where even benign condition may subject the FPSO to extremely diverse wave induced loads. An increasing number of FPSOs are being used in the oil and gas industry due to the practical advantages they offer as compared to fixed installations, however, many FPSO show signs of cracks at critical locations in the first five years of service. It is believed that this is primarily due to LCF. It is therefore imperative to address LCF at the design stage. Finite Element Analysis (FEA) has been used to demonstrate that extremely high stress levels, exceeding three times the yield stress of the material, may occur at some critical locations during FPSO operations. Due to this ‘new’ form of damage in ship structures classification societies, shipyards and other organizations are addressing the issue of LCF by issuing various guidance notes and recommended practices in order to assess the damage due to LCF. This research contains a very extensive and useful literature review of the state-of-theart in LCF assessment methods available in literature and various class societies. Representative operational loading conditions (most onerous) have been presented for LCF Assessment of FPSO. LCF tests of typical longitudinal attachment were performed. This important structural element is seldom tested compared to the transverse attachment or cruciform. Experimental and numerical results compare well. A novel method of predicting LCF life has been proposed and a new S-N curve is proposed to be used for LCF assessment.
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Zhang, Yahui. "Low cycle fatigue of shape memory alloys." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLY004/document.

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Dans cette thèse, nous proposons une analyse globale multi-échelles de la fatigue à faible nombre de cycles des matériaux à mémoire de forme (MMF). Dans un premier temps, une large campagne d’essais a été menée pour différents chargements thermomécaniques comprenant des tests de fatigue sous contrainte et déformation imposée et pour différentes fréquences de chargement. A partir des résultats des essais, un critère de fatigue, basé sur l’énergie de déformation, a été développé ; on montre que l’énergie de déformation est un paramètre pertinent pour prédire la fatigue des MMF en tenant compte du couplage thermomécanique et du type de chargement : contrainte ou déformation imposée. Ensuite, en prenant appui sur la répartition de l’énergie de l’hystérésis en dissipation et énergie stockée, on avance une interprétation physique du mécanisme de la fatigue des MMF. Dans la troisième partie, on propose une modélisation multi-échelles de l’initiation des fissures de fatigue dans les MMF à partir de la notion de plasticité de transformation (PlTr). Dans ce cadre, on montre que la fatigue de MMF est contrôlée par la (PlTr) et que la température maximale lors de la transformation de phase est le paramètre à retenir pour prédire la rupture par fatigue des MMF. Le modèle permet également de prédire le lieu d’initiation des premières fissures de fatigue. Enfin, un procédé – fondé sur l’«éducation» des MMF – permettant d’améliorer la résistance à la fatigue est proposé
The thesis proposes a multi-scale comprehensive analysis of low cycle fatigue of shape memory alloys (SMAs). First, low cycle fatigue of SMAs is experimentally investigated; comprehensive tensile-tensile fatigue tests under both stress and strain controlled loadings at different frequencies are carried out and results are discussed. Second, a new strain energy-based fatigue criterion is developed; it is shown that the use of total strain energy is a relevant parameter to predict fatigue lifetime of SMAs for different thermomechanical conditions and under different types (strain-control or stress-control) loadings. A physical interpretation of the mechanism related to the low-cycle fatigue of SMAs is then provided based on the conversion of hysteresis work into dissipation and stored energy. Third, fatigue crack initiation during cyclic stress-induced phase transformation is modeled based on transformation induced plasticity (TRIP); it is shown that the maximum temperature during the cyclic loading is a relevant indicator of the fatigue of SMA. Furthermore, the effect of the macroscopic mechanical load on the the fatigue lifetime is addressed as well as the spatial location of crack initiation. Finally, a mechanical training process that allows enhancing resistance to low cycle fatigue of SMAs is proposed
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Zhang, Yahui. "Low cycle fatigue of shape memory alloys." Electronic Thesis or Diss., Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLY004.

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Dans cette thèse, nous proposons une analyse globale multi-échelles de la fatigue à faible nombre de cycles des matériaux à mémoire de forme (MMF). Dans un premier temps, une large campagne d’essais a été menée pour différents chargements thermomécaniques comprenant des tests de fatigue sous contrainte et déformation imposée et pour différentes fréquences de chargement. A partir des résultats des essais, un critère de fatigue, basé sur l’énergie de déformation, a été développé ; on montre que l’énergie de déformation est un paramètre pertinent pour prédire la fatigue des MMF en tenant compte du couplage thermomécanique et du type de chargement : contrainte ou déformation imposée. Ensuite, en prenant appui sur la répartition de l’énergie de l’hystérésis en dissipation et énergie stockée, on avance une interprétation physique du mécanisme de la fatigue des MMF. Dans la troisième partie, on propose une modélisation multi-échelles de l’initiation des fissures de fatigue dans les MMF à partir de la notion de plasticité de transformation (PlTr). Dans ce cadre, on montre que la fatigue de MMF est contrôlée par la (PlTr) et que la température maximale lors de la transformation de phase est le paramètre à retenir pour prédire la rupture par fatigue des MMF. Le modèle permet également de prédire le lieu d’initiation des premières fissures de fatigue. Enfin, un procédé – fondé sur l’«éducation» des MMF – permettant d’améliorer la résistance à la fatigue est proposé
The thesis proposes a multi-scale comprehensive analysis of low cycle fatigue of shape memory alloys (SMAs). First, low cycle fatigue of SMAs is experimentally investigated; comprehensive tensile-tensile fatigue tests under both stress and strain controlled loadings at different frequencies are carried out and results are discussed. Second, a new strain energy-based fatigue criterion is developed; it is shown that the use of total strain energy is a relevant parameter to predict fatigue lifetime of SMAs for different thermomechanical conditions and under different types (strain-control or stress-control) loadings. A physical interpretation of the mechanism related to the low-cycle fatigue of SMAs is then provided based on the conversion of hysteresis work into dissipation and stored energy. Third, fatigue crack initiation during cyclic stress-induced phase transformation is modeled based on transformation induced plasticity (TRIP); it is shown that the maximum temperature during the cyclic loading is a relevant indicator of the fatigue of SMA. Furthermore, the effect of the macroscopic mechanical load on the the fatigue lifetime is addressed as well as the spatial location of crack initiation. Finally, a mechanical training process that allows enhancing resistance to low cycle fatigue of SMAs is proposed
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Powell, Brian Edward. "The influence of minor cycles on low cycle fatigue crack growth." Thesis, University of Portsmouth, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.354380.

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Fatigue crack propagation rates have been measured for two titaniumbased aeroengine disc alloys using compact tension test pieces. The loading block employed simulates two features of the engine flight pattern. A major stress cycle represents the start-stop operation which leads to low cycle fatigue. In-flight vibrations, which may give rise to high cycle fatigue, are represented by superimposed minor cycles of high frequency. This combined loading is applied in a specially developed test facility consisting of an electromagnetic vibrator mounted above a servohydrau1ic actuator. When the minor cycles are inactive the fractographic cracking processes are those associated with major cycle crack growth. Once active, the minor cycle growth may either generate extensive cyclic cleavage or increase the separation of the fatigue striations associated with the periodic major cycles. The contribution of the minor cycles to the total growth rate is dependent on their relative number and size. In gas turbine and compressor discs and blades, components which experience large numbers of minor cycles per flight, the damage associated with active minor cycles is dominant. Consequently, the onset of minor cycle damage effectively determines the useful life of such components. The threshold values associated with the minor cycles have been used to predict the onset of minor cycle activity. Similarly the method of linear superposition has been used to predict the subsequent fatigue crack growth rates. These predictions are successful for Ti-6Al-4V, whilst for Ti-5331S they are either found to be accurate or safe. Although Ti-5331S displays a marginally greater resistance to the onset of minor cycle crack growth, of greater significance is its reduced crack growth rates prior to this event. As a consequence components fabricated from Ti-5331S will exhibit longer fatigue crack propagation lives when subjected to the conjoint action of high and low cycle fatigue.
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Payne, R. Kelly. "Low cycle fatigue of modified 9Cr-1Mo weldments." Thesis, Georgia Institute of Technology, 1986. http://hdl.handle.net/1853/10991.

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Bérard, Jean-Yves Adrien. "A micromechanical approach to biaxial low cycle fatigue." Diss., Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/20157.

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Books on the topic "Low cycle fatigue"

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Solomon, HD, GR Halford, LR Kaisand, and BN Leis, eds. Low Cycle Fatigue. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 1988. http://dx.doi.org/10.1520/stp942-eb.

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Halford, Gary R. Low cycle thermal fatique. [Washington, DC: National Aeronautics and Space Administration, 1986.

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D, Solomon H., and ASTM Committee E-9 on Fatigue., eds. Low cycle fatigue: A symposium. Philadelphia, Pa: ASTM, 1988.

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International Conference on Low Cycle Fatigue and Elasto-Plastic Behaviour of Materials (2nd 1987 Munich, Germany). Low cycle fatigue and elasto-plastic behaviour of materials. London: Elsevier Applied Science, 1987.

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1936-, Rie K. T., Portella P. D, and International Conference on Low Cycle Fatigue and Elasto-Plastic Behaviour of Materials (4th : 1998 : Garmisch-Partenkirchen, Germany), eds. Low cycle fatigue and elasto-plastic behaviour of materials. Amsterdam: Elsevier, 1998.

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Powell, Brian Edward. The influence of minor cycles on low cycle fatigue crack growth. Portsmouth: Portsmouth Polytechnic, 1985.

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Rie, K. T., ed. Low Cycle Fatigue and Elasto-Plastic Behaviour of Materials. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3459-7.

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Cyclic plasticity and low cycle fatigue life of metals. Amsterdam: Elsevier, 1991.

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Kandil, Fathy. Measurement of bending in uniaxial low cycle fatigue testing. Teddington: National Physical laboratory, 1998.

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Hall, Rodney H. F. Crack growth under combined high and low cycle fatigue. Portsmouth: Portsmouth Polytechnic, School of Systems Engineering, 1991.

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Book chapters on the topic "Low cycle fatigue"

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Lalanne, Christian. "Low-Cycle Fatigue." In Fatigue Damage, 289–333. Chichester, UK: John Wiley & Sons, Ltd, 2014. http://dx.doi.org/10.1002/9781118931189.ch7.

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Pineau, André. "Low-Cycle Fatigue." In Fatigue of Materials and Structures, 113–77. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118623435.ch4.

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Yates, J. R. "Equibiaxial Low Cycle Fatigue." In Problems of Fracture Mechanics and Fatigue, 589–91. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-2774-7_129.

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Yates, J., and M. W. Brown. "Torsional Low Cycle Fatigue." In Problems of Fracture Mechanics and Fatigue, 601–6. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-2774-7_132.

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Farahmand, Bahram, George Bockrath, and James Glassco. "Conventional Fatigue (High- and Low-Cycle Fatigue)." In Fatigue and Fracture Mechanics of High Risk Parts, 13–102. Boston, MA: Springer US, 1997. http://dx.doi.org/10.1007/978-1-4615-6009-8_2.

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Milella, Pietro Paolo. "Strain-Based Fatigue Analysis Low Cycle Fatigue." In Fatigue and Corrosion in Metals, 309–63. Milano: Springer Milan, 2012. http://dx.doi.org/10.1007/978-88-470-2336-9_6.

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Milella, Pietro Paolo. "Strain-Based Fatigue Analysis—Low Cycle Fatigue." In Fatigue and Corrosion in Metals, 355–411. Cham: Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-51350-3_8.

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Harlow, D. Gary. "Statistical Modeling for Low Cycle Fatigue." In TMS 2014: 143rd Annual Meeting & Exhibition, 639–46. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-48237-8_77.

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Harlow, D. Gary. "Statistical Modeling for Low Cycle Fatigue." In TMS 2014 Supplemental Proceedings, 639–46. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118889879.ch77.

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Armas, Alberto F. "Low-Cycle Fatigue at Intermediate Temperatures." In Duplex Stainless Steels, 339–66. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118557990.ch10.

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Conference papers on the topic "Low cycle fatigue"

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Wang, Xiaozhi, Joong-Kyoo Kang, Yooil Kim, and Paul H. Wirsching. "Low Cycle Fatigue Analysis of Marine Structures." In 25th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/omae2006-92268.

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There are situations where a marine structure is subjected to stress cycles of such large magnitude that small, but significant, parts of the structural component in question experiences cyclic plasticity. Welded joints are particularly vulnerable because of high local stress concentrations. Fatigue caused by oscillating strain in the plastic range is called “low cycle fatigue”. Cycles to failure are typically below 104. Traditional welded joint S-N curves do not describe the fatigue strength in the low cycle region (< 104 number of cycles). Typical Class Society Rules do not directly address the low cycle fatigue problem. It is therefore the objective of this paper to present a credible fatigue damage prediction method of welded joints in the low cycle fatigue regime.
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Holycross, Casey M., M. H. Herman Shen, Onome E. Scott-Emuakpor, and Tommy J. George. "Energy-Based Fatigue Life Prediction for Combined Low Cycle and High Cycle Fatigue." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-95785.

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Gas turbine engine components are subjected to both low and high cycle fatigue as a result of mechanical and vibrational loading. Mechanical loading is generally within the low cycle fatigue regime and attributed to throttle up/throttle down cycles of various flight maneuvers or engine start-up/shut-down cycles over the course of a component’s lifetime. Vibrational loading causes high cycle fatigue of a multiaxial stress state, and is attributed to various forced and free vibration sources manifested as high order bending or torsion modes. Understanding the interaction of these two fatigue regimes is necessary to develop robust design techniques for gas turbine engines and turbomachinery in general. Furthermore, applying a method to accurately predict fatigue performance from a reduced data set can greatly reduce time and material costs. This study investigates commonly used fatigue life prediction models and techniques in their ability to accurately model fatigue lives of Al 6061-T651 cylindrical test specimens subjected to various stress ratios, mean stresses, and high cycle/low cycle interaction. Comparisons between these models are made and modifications are proposed than can account for these complex loading effects where appropriate.
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Balina, O. V., and V. V. Nassonov. "Low-cycle fatigue of pipe steels." In MECHANICS, RESOURCE AND DIAGNOSTICS OF MATERIALS AND STRUCTURES (MRDMS-2016): Proceedings of the 10th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures. Author(s), 2016. http://dx.doi.org/10.1063/1.4967022.

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Vinci, Richard P. "Low-Cycle Fatigue in Aluminum Microbeams." In ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-1148.

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Abstract Cyclic plasticity and fatigue failure have long been recognized as two of the most important areas of study in bulk materials. Just like large-scale mechanical components, small-scale structures found in microelectromechanical systems are often subjected to cyclic loading. It is known that the tensile strength of thin film media on substrates can differ significantly from that of bulk materials, so it is expected that cyclic behavior will differ as well. However, the mechanisms that separate bulk from small-scale behavior are still not well understood. Only preliminary work has been performed in the area of cyclic loading of thin films [1,2].
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Luo Yunrong, Wang Qingyuan, and Yang Bo. "Low cycle fatigue tests on low carbon steel." In 2011 International Conference on Business Management and Electronic Information (BMEI). IEEE, 2011. http://dx.doi.org/10.1109/icbmei.2011.5921073.

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Mansour, Ghiath (Guy). "Low Cycle Fatigue in Risers and Pipelines." In ASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/omae2022-78905.

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Abstract It is very-well known that fatigue is a primary driver and challenge for steel catenary risers (SCRs) and potentially for steel lazy wave risers (SLWRs) as well. This challenge can be overcome in several ways, some better than others. However, the first step is to predict the fatigue damage properly. Fatigue in risers designed utilizing the working stress design (WSD) method, where stresses are kept below yield, is typically predicted utilizing a stress versus number of cycles to failure (S-N) approach, referred to as high cycle fatigue (HCF). Riser designed utilizing the load and resistance factor design (LRFD), or limit state design (LSD), or strain-based design (SBD) methods are likely to experience yielding and inelastic strains, especially in extreme and survival conditions. Cycles of stresses exceeding yielding and producing inelastic strains occur also in reel-lay operations and are likely to occur in pipelines subjected to large deflections cycles such as over sleepers. Utilizing HCF approach to predict fatigue in this case is inappropriate and a strain versus number of cycles to failure (ε-2N) approach, referred to as low cycle fatigue (LCF), is typically utilized. A detailed approach to predict the LCF fatigue is presented herein along with examples.
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Harlow, D. Gary. "Low Cycle Fatigue: Probability and Statistical Modeling of Fatigue Life." In ASME 2014 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/pvp2014-28114.

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Low cycle fatigue (LCF) induces damage accumulation in structural components used in various applications. LCF typically describes conditions for which plastic strains are larger than elastic strains. In order to certify and qualify a structural component, manufactured from a given material, that requires high reliability for operation and safety, fundamental material properties should be experimentally investigated and validated. The traditional strain–life approach serves as the underlying experimental method for most LCF investigations. Building upon that background, the purpose of this paper is to investigate the statistical variability and appropriately model that variability for life in LCF. Specifically, the variability associated with the median behavior in a strain–life graph for data is examined. The ensuing analyses are based on data for a cold-rolled, low carbon, extra deep drawing steel; ASTM A969 which is appropriate for applications where extremely severe drawing or forming is envisioned. It is frequently used in the automotive industry for components such as inner door components and side body components. For substantiation of the proposed modeling techniques, data for 9Cr-1Mo steel is also investigated. Such steel is frequently used in the construction of power plants and other structures that experience operating temperatures in excess of 500°C. The commonly used universal slopes approach for fatigue life modeling for which the strain–life computation employs the standard Coffin–Manson relationship is compared to a statistical methodology using a distribution function frequently used in structural reliability. The proposed distribution function for characterizing the fatigue life is a generalized Weibull distribution function that empirically incorporates load history and damage accumulation.
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El-Sayed, Mohamed E. M. "Transition From Low Cycle to High Cycle in Uniaxial Fatigue." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-66202.

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Fatigue is the most critical failure mode of many mechanical component. Therefore, fatigue life assessment under fluctuating loads during component development is essential. The most important requirement for any fatigue life assessment is knowledge of the relationships between stresses, strains, and fatigue life for the material under consideration. These relationships, for any given material, are mostly unique and dependent on its fatigue behavior. Since the work of Wöhler in the 1850’s, the uniaxial stress versus cycles to fatigue failure, which is known as the S-N curve, is typically utilized for high-cycle fatigue. In general, high cycle fatigue implies linear elastic behavior and causes failure after more than 104 or 105 cycles. However. the transition from low cycle fatigue to high cycle fatigue, which is unique for each material based on its properties, has not been well examined. In this paper, this transition is studied and a material dependent number of cycles for the transition is derived based on the material properties. Some implications of this derivation, on assessing and approximating the crack initiation fatigue life, are also discussed.
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Sridhar, A., V. Kumar, and A. K. Gogia. "Notched Low Cycle Fatigue of Alloy 718." In Superalloys. TMS, 2005. http://dx.doi.org/10.7449/2005/superalloys_2005_497_506.

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Luk, C. H., Xinhai Qi, Tai-Jun Wang, and Mark Brunner. "Low Cycle Fatigue in HP/HT Flowlines." In Offshore Technology Conference. Offshore Technology Conference, 2004. http://dx.doi.org/10.4043/16461-ms.

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Reports on the topic "Low cycle fatigue"

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Troiano, E., J. H. Underwood, D. Crayon, and R. T. Abbott. Low Cycle Notched Fatigue Behavior and Life Predictions of A723 High Strength Steels. Fort Belvoir, VA: Defense Technical Information Center, April 1995. http://dx.doi.org/10.21236/ada299469.

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Barnes, B. Bond and low cycle fatigue behavior of thermoset composite reinforcing for the concrete industry. Office of Scientific and Technical Information (OSTI), September 1990. http://dx.doi.org/10.2172/6824948.

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Powell, B. E., I. Henderson, and R. F. Hall. The Growth of Corner Cracks Under the Conjoint Action of High and Low Cycle Fatigue. Fort Belvoir, VA: Defense Technical Information Center, February 1988. http://dx.doi.org/10.21236/ada190510.

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Chen, Y., B. Alexandreanu, and X. Zhang. Microtructure and Low-Cycle Fatigue Behavior of Additively Manufactured 316L Stainless Steel at 300°C. Office of Scientific and Technical Information (OSTI), January 2023. http://dx.doi.org/10.2172/1922636.

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Solomon, H. D. Influence of Temperature on the Low Cycle Fatigue of Surface Mounted Chip Carrier/Printed Wiring Board Joints. Fort Belvoir, VA: Defense Technical Information Center, September 1987. http://dx.doi.org/10.21236/ada204336.

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Swansson, N. S. Application of Finite Element Methods with Cyclic Elasto-Plastic Strain Analysis to Low Cycle Fatigue Analysis of Engine Components,. Fort Belvoir, VA: Defense Technical Information Center, December 1986. http://dx.doi.org/10.21236/ada189810.

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Grummon, D. S., and G. Gottstein. Softening mechanisms and microstructural instabilities during high temperature, low cycle fatigue of Ni, Ni sub 3 Al and their metal matrix composites. Office of Scientific and Technical Information (OSTI), January 1989. http://dx.doi.org/10.2172/5050198.

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Swankie, Martin, and Andrews. L52012 Mechanisms and Kinetics of Crack Growth in Areas of Mechanical Damage. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), March 2005. http://dx.doi.org/10.55274/r0011185.

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The project was primarily experimental in nature. It has utilised small scale specimen and ring expansion testing rather than full scale vessel tests to investigate the mechanisms responsible for time-delayed failures. The aim was to perform a series of laboratory experiments to investigate the influence of pre-strain and cyclic frequency on the behaviour of pipeline steels subject to low cycle fatigue and sustained loads. The initial experimental programme consisted of tensile tests and fatigue crack growth tests including tensile dwell periods, carried out on pre-strained and non pre-strained pipe material. Ring expansion tests were then carried out on specimens with dent-gouge defects with varying dent depths. These tests included hold periods at maximum pressure intended to produce time dependent crack growth. Small scale testing to determine isochronous stress-strain curves at ambient temperature was also carried out for one material.
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Hammad, Ali, and Mohamed Moustafa. Seismic Behavior of Special Concentric Braced Frames under Short- and Long-Duration Ground Motions. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, December 2019. http://dx.doi.org/10.55461/zont9308.

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Over the past decade, several long-duration subduction earthquakes took place in different locations around the world, e.g., Chile in 2010, Japan in 2011, China in 2008, and Indonesia in 2004. Recent research has revealed that long-duration, large-magnitude earthquakes may occur along the Cascadia subduction zone of the Pacific Northwest Coast of the U.S. The duration of an earthquake often affects the response of structures. Current seismic design specifications mostly use response spectra to identify the hazard and do not consider duration effects. Thus, a comprehensive understanding of the effect of the duration of the ground motion on structural performance and its design implications is an important issue. The goal of this study was to investigate how the duration of an earthquake affects the structural response of special concentric braced frames (SCBFs). A comprehensive experimental program and detailed analytical investigations were conducted to understand and quantify the effect of duration on collapse capacity of SCBFs, with the goal of improving seismic design provisions by incorporating these effects. The experimental program included large-scale shake table tests, and the analytical program consisted of pre-test and post-test phases. The pre-test analysis phase performed a sensitivity analysis that used OpenSees models preliminarily calibrated against previous experimental results for different configuration of SCBFs. A tornado-diagram framework was used to rank the influence of the different modeling parameters, e.g., low-cycle fatigue, on the seismic response of SCBFs under short- and long-duration ground motions. Based on the results obtained from the experimental program, these models were revisited for further calibration and validation in the post-test analysis. The experimental program included three large-scale shake-table tests of identical single-story single-bay SCBF with a chevron-brace configuration tested under different ground motions. Two specimens were tested under a set of spectrally-matched short and long-duration ground motions. The third specimen was tested under another long-duration ground motion. All tests started with a 100% scale of the selected ground motions; testing continued with an ever-increasing ground-motion scale until failure occurred, e.g., until both braces ruptured. The shake table tests showed that the duration of the earthquake may lead to premature seismic failure or lower capacities, supporting the initiative to consider duration effects as part of the seismic design provisions. Identical frames failed at different displacements demands because of the damage accumulation associated with the earthquake duration, with about 40% reduction in the displacement capacity of the two specimens tested under long-duration earthquakes versus the short-duration one. Post-test analysis focused first on calibrating an OpenSees model to capture the experimental behavior of the test specimens. The calibration started by matching the initial stiffness and overall global response. Next, the low-cycle fatigue parameters were fine-tuned to properly capture the experimental local behavior, i.e., brace buckling and rupture. The post-test analysis showed that the input for the low-cycle fatigue models currently available in the literature does not reflect the observed experimental results. New values for the fatigue parameters are suggested herein based on the results of the three shake-table tests. The calibrated model was then used to conduct incremental dynamic analysis (IDA) using 44 pairs of spectrally-matched short- and long-duration ground motions. To compare the effect of the duration of ground motion, this analysis aimed at incorporating ground-motion variability for more generalized observations and developing collapse fragility curves using different intensity measures (IMs). The difference in the median fragility was found to be 45% in the drift capacity at failure and about 10% in the spectral acceleration (Sa). Using regression analysis, the obtained drift capacity from analysis was found to be reduced by about 8% on average for every additional 10 sec in the duration of the ground motion. The last stage of this study extended the calibrated model to SCBF archetype buildings to study the effect of the duration of ground motion on full-sized structures. Two buildings were studied: a three-story and nine-story build that resembled the original SAC buildings but were modified with SCBFs as lateral support system instead of moment resisting frames. Two planer frames were adopted from the two buildings and used for the analysis. The same 44 spectrally-matched pairs previously used in post-test analysis were used to conduct nonlinear time history analysis and study the effect of duration. All the ground motions were scaled to two hazard levels for the deterministic time history analysis: 10% exceedance in 50 years and 2% exceedance in 50 years. All analysis results were interpreted in a comparative way to isolate the effect of duration, which was the main variable in the ground-motion pairs. In general, the results showed that the analyzed SCBFs experienced higher drift values under the long-duration suite of ground motions, and, in turn, a larger percentage of fractured braces under long-duration cases. The archetype SCBFs analysis provided similar conclusions on duration effects as the experimental and numerical results on the single-story single-bay frame.
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Leis and Scott. L51643 Development and Validation of a Ductile Flaw Growth Analysis for Gas Transmission Line Pipe. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), June 1991. http://dx.doi.org/10.55274/r0010095.

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Hydrostatic testing is widely used to demonstrate pipe-line integrity. The test has been used to validate the maximum allowable operating pressure (MAOP) of lines being commissioned. As existing pipelines age, the test is also being used to revalidate integrity following repairs. Repeated hydrotesting over some interval of time is also being considered as a regulatory measure. Both the initial hydrotest and subsequent repeated hydrotesting introduce the possibility for flaw growth, with low cycle fatigue being an obvious concern. Historically established safe operation points to the adequacy of hydrotesting to operating pressure ratios that range in the U.S. from 1.10 to 1.5 times MAOP. Federal regulations limit the peak MAOP for gas transmission pipelines to a value corresponding to 72 percent of the specified minimum yield stress (SMYS) of the material and set the minimum test pressure at 1.25 times the maximum operating pressure (MOP). This report is the third in a series of topical reports that document the development and validation of a model that simulates the ductile growth of axial part-through-wall (PTW) flaws in linepipe. This program is performed under the auspices of the Pipeline Research Committee of PRCI and control of the NG-18 Structural Integrity Subcommittee chaired by Dr. Brian Rothwell. The objective of this study was to develop a validated model to characterize ductile growth of axial PTW flaws due to the effects of a hydrotest or repeated hydrotesting.
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