Academic literature on the topic 'Strength tests'

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Journal articles on the topic "Strength tests"

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Menon, Krishna K., and Andris Freivalds. "Repeatability of Dynamic Strength Tests." Proceedings of the Human Factors Society Annual Meeting 29, no. 5 (October 1985): 517–20. http://dx.doi.org/10.1177/154193128502900525.

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The repeatability of dynamic strength tests was examined by calculating coefficients of variations (CV) for the forces exerted on lifting tests using the legs, torso and arms. Static strengths were also measured and compared to dynamic strengths. The CV for dynamic strengths, was in fact slightly lower than for static strengths, 9.79% vs. 10.6%. The correlations between the two types of strength measurements were large (r=.8l) and significant, indicating that along with good repeatability dynamic tests are an acceptable form of employee strength measurement.
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Wojtas, Małgorzata, and Agnieszka Sobieszek. "Gyroplane Rotor Hubs Strength Tests." Journal of KONES 26, no. 3 (September 1, 2019): 265–70. http://dx.doi.org/10.2478/kones-2019-0082.

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Abstract In this article a review of rotor, hub constructions were presented. Discussed rotor’s hub is made of composite or aluminum alloys materials. Two types of rotor hub were presented (four-blades and two-blades teetering rotor hub), each of them are dedicated to gyroplanes. Typical gyroplane main rotors are characterized by simple design, especially in case of rotors for light gyroplanes. In the following part of the article the type of strength tests required by certification process were shown. The test programs based on legal aspects of admission to the flight tests taking into account legislation such as CS 27 (Subpart C – Strength Requirements), CAP 643 British Civil Airworthiness requirements Section T Light gyroplanes, ASTM F2972. Furthermore, this article discusses strength tests of gyroplane rotor hub such as measured parameters, methodology of measurement, types of sensors, course of test, test stands, and limit loads. The loads during “pull-up from level flight” manoeuvre are limit loads during tests. Required additional processes, like a verification the same parameters by two types of method were shown i.e. deformation of structure were tested by strain gauges and reverse engineering. Strength tests had to be made before flight test, based on results of them aircrafts are flight authorized. In conclusion, the results of tests were presented and fulfilment of legal assumptions and requirements were shown.
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Supancic, Peter, Robert Danzer, Walter Harrer, Zhong Hua Wang, Stefan Witschnig, and Oskar Schöppl. "Strength Tests on Silicon Nitride Balls." Key Engineering Materials 409 (March 2009): 193–200. http://dx.doi.org/10.4028/www.scientific.net/kem.409.193.

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For some years ceramic bearing balls based on silicon nitride have been routinely used in technical practice. An important property of bearing balls is their strength, but appropriate testing methods are still missing. In this paper four different methods for strength testing are applied to commercial bearing balls. Each of the tests needs a different type of specimen, their preparation needs a very different effort, and the stress state applied to the specimens is also very different. This causes pros and cons, which are discussed in detail. The conventional 4-point bending test characterises the material in the interior of the balls. The applied stress state is uniaxial. The machining of the bending bars out of the balls is time intensive and costly. The ball on three balls test also characterises interior of the balls. The stress state is biaxial. The machining of the disc shaped specimens out of the balls is less expensive than the production of bending bars, but the finish of the tensile loaded surface needs special care. The data of both types of tests can be converted into each other using Weibull theory. The specimens in the triple ball crush test are as-received bearing balls, which are squeezed together. This causes some kind of contact loading, as will also occur in service. Failure is caused by the creation and growth of contact cracks, followed by a collapse of the compressed and cracked material. A detailed analysis of test results is complicated. It can be speculated that the component’s behaviour is mainly influenced by the toughness of the material and that the flaws in the material or at the component’s surface are of less significance. In the newly developed notched ball test the highest stressed region is a part of the original surface of the balls. Machining of the notch is straightforward. The stress state is almost uniaxial. The strength depends on size of flaws in the surface region. Therefore the notched ball test is a relevant measure to characterize the quality of the bearing balls.
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Konrad, J. M., and K. T. Law. "Undrained shear strength from piezocone tests." Canadian Geotechnical Journal 24, no. 3 (August 1, 1987): 392–405. http://dx.doi.org/10.1139/t87-050.

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With the advent of piezocones — penetrometers measuring both the mechanical resistance and induced pore pressures near the tip during penetration into the soil — a new interpretation of penetrometer test data is possible. This paper presents a review of available interpretation methods for obtaining the undrained shear strength of soft soils, and introduces a new interpretation taking into account measured pore pressures. The undrained shear strength is considered to be solely related to the ultimate cavity expansion pressure, which is one of the components of the tip resistance. The other component is calculated assuming that effective friction is developed at the cone–soil interface.Parametric studies on the parameters required for strength determination based on the proposed method are also presented. Special self-boring pressuremeter tests to obtain relevant values of soil rigidity index, which is a key parameter for cavity expansion modelling, are described. Tests were conducted at three sites having the characteristics of soft sensitive clay, stiff sensitive clay, and clayey silt. The operational undrained strength mobilized during the cone insertion derived from the proposed model is equal to or lower than the CK0U triaxial strength, which depends on soil brittleness. The proposed approach yields results consistent with known soil behaviour at all three sites. Key words: piezocone penetrometer, pressuremeter, excess pore-water pressure, undrained shear strength, rigidity index, in situ tests, laboratory test.
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BLAKLEY, BARRY R., MIGUEL A. QUIÑONES, MARNIE SWERDLIN CRAWFORD, and I. ANN JAGO. "THE VALIDITY OF ISOMETRIC STRENGTH TESTS." Personnel Psychology 47, no. 2 (June 1994): 247–74. http://dx.doi.org/10.1111/j.1744-6570.1994.tb01724.x.

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Surin, V. M., and S. M. Dzerzhinskii. "Comparative analysis of vibrational-strength tests." Russian Engineering Research 28, no. 10 (October 2008): 943–45. http://dx.doi.org/10.3103/s1068798x08100055.

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Lokaj, Antonín, and Kristýna Vavrušová. "Wood Impact Bending Strength Laboratory Tests." Transactions of the VŠB - Technical University of Ostrava. Construction Series X, no. 1 (January 1, 2010): 1–6. http://dx.doi.org/10.2478/v10160-010-0003-6.

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Černý, Michal, Pavel Mazal, Josef Filípek, and Petr Dostál. "Fatigue strength tests of layered steel." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 61, no. 1 (2013): 39–49. http://dx.doi.org/10.11118/actaun201361010039.

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The work deals with original measurement of fatigue properties of formed layered steel material – damask steel. This is a material that exhibits a fine micro-structure as well as a regular composition of many material layers with complementary properties. The article experimentally verifies high-cycle fatigue properties of layered steel and evaluates them from the point of view of fatigue tests of conventional steel materials and a parallel application of a non-destructive – acoustic emission – testing. Finally, it discusses the influence of production on fatigue strength and the possibilities of using multi-layered steel materials in technological practice. A serious result of this pilot experiment is the fact documented no only by the fractographic observation, but mainly by the AE records that the fatigue service life of this material is high if it its not stressed by tension approximating the yield point Re. However, such stress is not common in practical use of tools made of damask steel and thus under common bending stress an exceptionally long service life of tools made of this type of material is demonstrable. The fact that damask steel behaves like a homogeneous material is mainly confirmed by the records of the AE signal at lower values of stress σa. When stressed by higher amplitudes of tension σa damask responds in AE records similarly to a laminate material that is stressed by bending.
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Richard, Thomas, Fabrice Dagrain, Edmond Poyol, and Emmanuel Detournay. "Rock strength determination from scratch tests." Engineering Geology 147-148 (October 2012): 91–100. http://dx.doi.org/10.1016/j.enggeo.2012.07.011.

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Rasmussen, K. J. R., and G. J. Hancock. "Tests of high strength steel columns." Journal of Constructional Steel Research 34, no. 1 (January 1995): 27–52. http://dx.doi.org/10.1016/0143-974x(95)97296-a.

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Dissertations / Theses on the topic "Strength tests"

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Hammerman, Mattias, and Robert Karlsson. "Analysis of undrained shear strength from drop-cone tests." Thesis, Linköpings universitet, Institutionen för teknik och naturvetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-93142.

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The Swedish Geotechnical Institute, SGI, has been given the assignment of mapping the risk of landslides in the area by the river Göta älv. Tests were made to determine the shear strength of soil on land and in the river. It has been shown that shear strength values evaluated with drop cone tests from points under the river are higher compared to other test methods although experience shows that the shear strength values from fall cone tests usually is slightly lower compared with those from other test methods. The soil under the river is more over consolidated then the surrounding soil because of years of erosion from the river. When evaluating undrained shear strength from CPT- and field vane shear tests, consideration to over consolidation is taken. SGI is now interested to look into if this needs to be done when evaluating undrained shear strength from fall cone tests as well. This thesis compares values from fall cone tests without correction for the over consolidation with values which is corrected to see if a correction is necessary. All data concerning the soils effective stress is necessary for calculating the over consolidation ratio and is evaluated manually. There is no set method to correct fall cone tests for the over consolidation so the existing formula used in the correction of field vane shear tests in over consolidated soils were used, both in its original form and with the exponent -0,15 adjusted. Own evaluations were made on the CPT- and field vane shear tests for comparisons with the results from the fall con tests. All processed data comes from SGI's own measurements. Results show that shear strength values from fall cone test and CPT field tests match better after corrections due to the over consolidation with the presented formula.
Statens Geotekniska institut, SGI har haft i uppdrag att skredkartera Göta älvdalen. Man har gjort provtagningar på land och i älven för att bestämma skjuvhållfastheten i jorden. Det har visat sig att skjuvhållfasthetsvärdena utvärderade med fallkonförsök på provpunkter i älven är högre än de från övriga provmetoder vilket de erfarenhetsmässigt inte brukar vara. I älven där leran under årens lopp avlastats genom erodering är leran mer överkonsoliderad jämfört med omkringliggande lera. Vid utvärdering av skjuvhållfasthet från CPT- och vingförsök tas numera hänsyn till jordens överkonsolidering. SGI är nu intresserade av att undersöka om detta även behöver göras vid bestämning av skjuvhållfasthet från fallkonförsök. I detta examensarbete jämförs skjuvhållfasthetsvärden från fallkonförsök utan korrigering för överkonsolidering med korrigerade värden för att se om en korrigering är nödvändig. Alla värden på jordens effektivspänning, som behövs för att beräkna överkonsolideringsgraden är beräknade manuellt. Det finns ingen vedertagen metod för att korrigera fallkonförsök för överkonsolidering, så den befintliga formeln som används vid korrigering av vingsonderingar i överkonsoliderade jordar har prövats, både i sin ursprungliga form och med justeringar av exponenten -0,15. Till jämförelsen har egna utvärderingar utöver de av fallkonförsöken gjorts på CPT- och vingsonderingar. Alla behandlade data kommer från SGI:s egna mätningar. Resultaten visar att skjuvhållfasthetsvärden från fallkonförsök och CPT-sondering stämmer bättre överens efter en korrigering för överkonsolidering med tidigare nämnd formel.
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Hughes, Philip Daniel. "Development and clinical application of tests of respiratory muscle strength." Thesis, Imperial College London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391625.

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Kyambadde, Benjamin Senyonga. "Soil Strength and Consistency Limits from Quasi-Static Cone Tests." Thesis, University of Brighton, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.523435.

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Bonetti, Rodolfo Arturo. "Ultimate Strength of the Local Zone in Load Transfer Tests." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/31392.

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An improved equation is presented for the prediction of the ultimate strength of the local zone in Load Transfer Tests. The derivation of this new formulation is the result of the investigation of the ultimate bearing strength of plain and reinforced concrete blocks, concentrically loaded. A total of 199 bearing tests were performed on plain and reinforced concrete prisms to evaluate the variables involved in the bearing problem. A finite element analysis of a typical square block loaded with different bearing areas was performed. Two equations, one for plain concrete and the other for reinforced concrete were derived using the Mohr failure criterion. The performance of the derived equations was evaluated against actual test data. The results of this evaluation showed very good agreement between the predicted ultimate strength and the actual test strength for both plain and reinforced concrete. For plain concrete specimens the ratio Ptest/Ppred was 1.05 with a coefficient of variation of 9 percent. In the case of reinforced concrete blocks the ratio Ptest/Ppred was 1.00 with a coefficient of variation of 14 percent.
Master of Science
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Greig, James William. "Estimating undrained shear strength of clay from cone penetration tests." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/25076.

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This paper discusses several proposed methods for estimating undrained shear strength from cone penetration tests. This correlation has been studied in the past, however, most have focussed only on the cone bearing. In addition to discussing these traditional methods, this paper evaluates recently proposed methods of estimating Su from CPT pore pressure data. The results of field vane and cone penetration tests from five lower mainland sites are presented in relation to the different proposed correlation techniques. The results show that there is no unique cone factor for estimating Su from CPT for all clays, however, a reasonable estimate of Su can be made by comparing the predictions from several of the proposed methods. With local correlations these techniques can be quite reliable. The results also show that the estimation of Su from CPT is influenced by various factors relating to: the choice of a reference Su, cone design, CPT test procedures and the soil characteristics. In particular, the estimation of Su from CPT is strongly influenced by such soil parameters as stress history, sensitivity and stiffness. Increases in OCR and sensitivity were reflected by increases in the traditional cone factors Nc and Nk. The use of pore pressure data appears to be a promising means of estimating. Su from CPT. Expressions have been developed that predict excess pore pressures based on cavity expansion theory and attempt to include the effects of sensitivity, stress history and stiffness. In addition, comparisons between friction sleeve measurements and Su and a method for estimating sensitivity from friction ratios are presented. Lastly, recommended procedures for estimating Su from CPT are given.
Applied Science, Faculty of
Civil Engineering, Department of
Graduate
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McElligott, Mark, and n/a. "The relationship between strength and endurance in female triathletes." University of Canberra. Human and Heritage Sciences, 1992. http://erl.canberra.edu.au./public/adt-AUC20060918.160011.

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Laham, Noor. "Episodic DSS tests to measure changing strength for whole-life geotechnical design." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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Changes in seabed soil strength due to loading events during the life of a structure, affect the response of the structure to any future event. This change in soil strength due to loading events, in particular cyclic loads, was of great concern in the field of offshore geotechnics during the last decades. Allowing for these changes can have a beneficial outcome on the design. Studying the changes occurring in the soil can be mainly done using large scale centrifuge tests or Laboratory element testing, where the latter proved to be able to successfully illustrate soil strength changes during periods of cyclic loads and reconsolidation. A new approach of life design known as “the whole life design” has been introduced lately to the industry “. Whole life design embraces the time-varying evolution of actions and resistances to create a continuous assessment of conditions of a structure. This dissertation studies the possibility of one of the most famous element tests which is the “Direct simple shear testing” to capture the changing in strength under cyclic (i.e., episodic in this context) loads and the settlement of subsea layers for the whole life geotechnical design. The outcome of the DSS testing in addition to outcomes from other previous methods (eg T-bar penetrations and Triaxial testing) can form the basis for a new framework to be adopted in the future for demonstrating a whole life design for subsea structures. In general, the project introduces the concept of whole-life geotechnical design through practical examples and shed lights on Direct simple shear testing ability to simulate specific cyclic loading scenarios. The topic closes with a discussion of next steps to enable whole-life geotechnical design to be more readily adopted in routine practice where appropriate.
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Johnson, Jack Buckland Jr. "Evaluating the Importance of Strength, Power, and Performance Tests in an NCAA Division I Football Program." Diss., Virginia Tech, 2001. http://hdl.handle.net/10919/29933.

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Strength and conditioning professionals spend a great deal of time and effort trying to improve athletic performance. Even as coaches evaluate each athlete by using the results of a vast battery of tests, there has been considerable speculation and discussion about the physical attributes of Division I football players and their playing status. The purpose of this study was to determine what influence strength, power, and performance tests scores have on an individual's playing status. The Skill group results indicate that power is the most important factor differentiating between starters and non-starters. Simultaneously, the Combo group results indicate that speed is the most important factor differentiating between starters and non-starters. Also, the L.O.S. group results indicate that bodyweight is the most important factor differentiating between starters and non-starters.
Ph. D.
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Zavoral, Dan. "Dynamic properties of an undisturbed clay from resonant column tests." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/30144.

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The dynamic properties of clay deposits under seismic or wave loading conditions must be well understood to assure dynamic stability of structures founded on such soil. The dynamic shear modulus and damping appear to be a complex function of many variables, and a wide range of values have been reported in the literature. Consequently, considerable uncertainty exists in choosing the appropriate values of shear modulus and damping for a particular problem. This thesis presents a study of the influence of various factors on the shear modulus and damping of a marine clay using a resonant column/torsional shear device. In particular, the influence of factors such as shear strain amplitude, effective confining stress, stress history, frequency (strain rate), and secondary time-dependent behaviour are examined. The pore pressure response is also studied. The shear modulus was found to degrade for shear strains above 0.005%. The strain dependency was found to be well represented by a single normalized modulus reduction curve regardless of the confining pressure or overconsolidation ratio. Slower strain rates resulted in smaller values of shear modulus. Of the variables studied, the duration of sample confinement was found to be the most imporant factor affecting the material damping. Above 0.005% strain, the damping of the marine clay increased with shearing strain amplitude. No significant effect of confining pressure and stress history on damping was observed at any strain level. As well, the material damping was found to be relatively independent of loading frequency. Both the shear wave velocity and damping obtained in this study were found to be consistent with the in situ values determined using the seismic cone penetration test.
Applied Science, Faculty of
Civil Engineering, Department of
Graduate
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Dirgėlienė, Neringa. "Research of soil shear strength in triaxial tests and probabilistic assessment of results." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20080207_161629-95063.

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Necessary information about soil properties, which is needed for designers and constructors, is obtained in each construction site while examining physical and mechanical properties of soils. Soil strength parameters and using them determined soil bearing resistance usually are defined with some errors. If we know the reasons of errors, disadvantages of testing equipment could be eliminated, methodology of data evaluation could be developed, soil parameters could be determined more precisely and foundation designed more economically. At present triaxial and direct shear tests are the most common tests for determination of soil shear strength parameters in laboratories. Different values of soil shear strength parameters are determined using laboratory equipment of various types. Triaxial test is the most widely used method for determination of soil shear strength parameters. This is one of the most reliable methods to model stress-strain state of ground. It is assumed that soil sample deforms uniformly during the triaxial test. But it is not often the case that a sample in triaxial apparatus deforms uniformly. Questions arise, what is stress-strain distribution in soil sample, when a load is transmitted in a prescribed way? What influence does a non-uniformity have on the soil strength parameters and on foundation size calculated using determined soil strength parameters? Why sandy soil strength parameters obtained from triaxial test are bigger than the one’s, obtained... [to full text]
Projektuojant ir statant įvairius pramoninius ir civilinius pastatus, visada reikalingi duomenys, kurie apibūdintų gruntų, sudarančių pastatų pagrindus, fizines ir mechanines savybes. Tokia projektuotojams ir statybos specialistams būtina informacija gaunama tiriant gruntų fizines, mechanines savybes kiekvienoje statybų aikštelėje. Šių savybių rodikliai ir pagal juos apskaičiuotas pagrindo stiprumas nustatomi su tam tikromis paklaidomis. Atskleidus tų paklaidų priežastis, šalinami tyrimo prietaisų trūkumai, tobulinami tyrimo duomenų apdorojimo metodai, tiksliau nustatomi grunto stiprumo rodikliai, ekonomiškiau projektuojami pamatai. Šiuo metu grunto kerpamojo stiprumo rodikliai dažniausiai nustatomi laboratorijose triašio slėgio ir tiesioginio kirpimo aparatais. Šių savybių rodikliai nustatyti įvairių konstrukcijų prietaisais gaunami skirtingi. Įtempimų ir deformacijų būvis grunto pagrinde geriau modeliuojamas triašio slėgio aparatu nei tiesioginio kirpimo aparatu, todėl triašio slėgio aparatas šiuo metu yra plačiai naudojamas pasaulyje nustatant grunto kerpamojo stiprumo savybių rodiklius. Daroma prielaida, kad bandinys bandymo metu deformuojasi vienodai. Šis teiginys yra pagrindinė triašio bandymo idėja. Tačiau dažniausiai bandinys deformuojasi nevienodai dėl grunto bandinio viršaus ir apačios horizontalių poslinkių suvaržymo, bandinio aukščio, nepakankamo drenavimo, guminės membranos poveikio, jo savojo svorio ir kt. Baigtinių elementų metodo analizė taip pat rodo, kad... [toliau žr. visą tekstą]
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Books on the topic "Strength tests"

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Hanhijarvi, Antti. Computational optimisation of test specimen for planar shear strength tests of wood based panels. Espoo, Finland: VTT, Technical Research Centre of Finland, 1998.

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Wanhill, R. J. H. Fractographic examination of specimens from IEPG TA 31 creep tests. Amsterdam: National Aerospace Laboratory (The Netherlands), 1994.

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Sutherland, Kenneth John. Field and laboratory tests to determine the adhesive strength of Mineguard. Sudbury, Ont: Laurentian University, School of Engineering, 1998.

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Winandy, Jerrold E. Predicting bending strength of fire-retardant-treated plywood from screw-withdrawl tests. Madison, Wis: Forest Products Laboratory, 1998.

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White, Howard D. Brief tests of collection strength: A methodology for all types of libraries. Westport, Conn: Greenwood Press, 1995.

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Rowell, Roger M. Strength tests on acetylated aspen flakeboards exposed to a brown-rot fungus. [Madison, WI: Forest Products Laboratory, 1988.

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Lameris, J. The static strength of mechanically fastened carbon-epoxy joints without bending. Amsterdam, Netherlands: National Aerospace Laboratory, 1989.

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Lade, P. Cyclic triaxial tests of the Bootlegger Cove Formation, Anchorage, Alaska. Washington, DC: Dept. of the Interior, 1988.

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Lade, P. Cyclic triaxial tests of the Bootlegger Cove Formation, Anchorage, Alaska. [Washington, D.C.]: U.S. G.P.O., 1988.

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Moore, Thomas J. Tensile strength of simulated and welded butt joints in W-Cu-composite sheet. Cleveland, Ohio: Lewis Research Center, 1994.

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Book chapters on the topic "Strength tests"

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da Silva, Lucas F. M. "Failure Strength Tests." In Handbook of Adhesion Technology, 443–71. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-01169-6_19.

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da Silva, Lucas F. M., R. J. C. Carbas, and M. D. Banea. "Failure Strength Tests." In Handbook of Adhesion Technology, 1–33. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-42087-5_19-2.

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da Silva, Lucas F. M., Ricardo J. C. Carbas, and Mariana D. Banea. "Failure Strength Tests." In Handbook of Adhesion Technology, 489–521. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-55411-2_19.

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da Silva, Lucas F. M., Patricia Roumagnac, Patrick Heuillet, Bruce Duncan, Gregory L. Anderson, Robert D. Adams, Jean-Yves Cognard, et al. "Quasi-Static Constitutive and Strength Tests." In Testing Adhesive Joints, 79–162. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2012. http://dx.doi.org/10.1002/9783527647026.ch2.

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Mentl, Vaclav, and Josef Bystricky. "Compression Tests of High Strength Steels." In Advanced Materials Research, 293–98. Stafa: Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/3-908454-01-8.293.

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Noyes, Frank R., and Sue Barber-Westin. "Muscle Strength and Dynamic Balance Stability Tests." In Return to Sport after ACL Reconstruction and Other Knee Operations, 505–28. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-22361-8_21.

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Hwang, Shun Fa, and Horng Ming Chen. "Compression Tests of Unidirectional Composite Laminates with Two Delaminations." In Fracture and Strength of Solids VI, 381–86. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-989-x.381.

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Rodriguez, Alvaro, Juan R. Rabuñal, Juan L. Perez, and Fernando Martinez-Abella. "Study of Strength Tests with Computer Vision Techniques." In New Challenges on Bioinspired Applications, 257–66. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21326-7_28.

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Lacombe, Alexandra, Yann Landon, Manuel Paredes, Clément Chirol, and Audrey Benaben. "Influence of the Hole Surface Integrity on the Fatigue Strength of an Aluminium Drilled Part." In Lecture Notes in Mechanical Engineering, 34–40. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-70566-4_7.

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AbstractFatigue strengths of aluminium 2024-T351 open-hole specimens drilled by axial and orbital drilling processes are compared. Two drilling diameters (Ø) are studied: 6.35 mm and 9.53 mm. Surface integrity characterization tests are conducted in order to study the link between drilling processes, surface integrity and fatigue life. Fatigue test results show an increase of the fatigue life for specimens drilled by axial drilling for Ø = 9.53 mm and no significant difference in fatigue life between the two drilling processes for Ø = 6.35 mm. Surface integrity results show no impact of the roughness on the fatigue strength but a potential positive influence of the hole microhardness on the fatigue life.
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Li, Shu Cai, Wei Shen Zhu, Yu Yong Jiao, and H. Jian. "On the Damage Evolution of 3-D Hydrous Cracks through CT Tests." In Fracture and Strength of Solids VI, 13–18. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-989-x.13.

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Conference papers on the topic "Strength tests"

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Łagoda, Agnieszka, and Adam Niesłony. "Dental adhesive strength tests." In INTERNATIONAL CONFERENCE ON THE METHODS OF AEROPHYSICAL RESEARCH (ICMAR 2018). Author(s), 2018. http://dx.doi.org/10.1063/1.5066399.

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Bokhoeva, Lyubov A., Vitaliy E. Rogov, Aleksey M. Pokrovskiy, and Anna S. Chermoshentseva. "Stands for Fatigue Strength Tests." In 2018 XIV International Scientific-Technical Conference on Actual Problems of Electronics Instrument Engineering (APEIE). IEEE, 2018. http://dx.doi.org/10.1109/apeie.2018.8545626.

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Van Oort, Eric, and Richard F. Vargo. "Improving Formation Strength Tests and Their Interpretation." In SPE/IADC Drilling Conference. Society of Petroleum Engineers, 2007. http://dx.doi.org/10.2118/105193-ms.

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Huang, P. S., and M. Y. Tsai. "Nonlinearities in thin-silicon die strength tests." In 2011 6th International Microsystems, Packaging, Assembly and Circuits Technology Conference (IMPACT). IEEE, 2011. http://dx.doi.org/10.1109/impact.2011.6117278.

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Avalle, Massimiliano, Andrea Ventrella, Monica Ferraris, and Milena Salvo. "Shear Strength Tests of Joined Advanced Ceramics." In ASME 8th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2006. http://dx.doi.org/10.1115/esda2006-95717.

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Advanced ceramics appear to be a very important resource for the development of many new technologies (fuel cells, nuclear fusion…) and in many manufacturing processes. An important issue in the construction of ceramic components is related to their joining methods. When size and complexity of the components grow, it is impossible to sintherize them in a single monolithic piece. It is necessary to join several parts: apart from mechanical joining systems, the primary solution is to use a material — that acts as adhesive — able to intimately join the two materials. The joining material needs to give sufficient mechanical strength, and to maintain resistance to external actions at high temperatures, as the adherend material is able to. In this paper, some results obtained in the Innovative Materials Laboratory (La.M.In.) of the II Faculty of Engineering of the Politecnico di Torino, will be shown. Since there is no unique method to measure the shear strength of the ceramics joints (the most important is ASTM C1469-00) and lack of agreement on a common test still exists, different testing methods were considered. One of the main difficulties is still to correlate the results from different tests: in fact, in each testing method the sample is subjected to different states of stress, and failure is induced differently. A thorough stress analysis has to be carried, by means of detailed finite elements models.
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Keerthan, P., and M. Mahendran. "Shear Strength Tests of Lipped Channel Beams." In 10th Pacific Structural Steel Conference (PSSC 2013). Singapore: Research Publishing Services, 2013. http://dx.doi.org/10.3850/978-981-07-7137-9_253.

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Kawasaki, Nobuchika, Shinichi Hasebe, Sumio Kobayashi, and Naoto Kasahara. "SPECTRA Thermal Fatigue Tests Under Frequency Controlled Fluid Temperature Variation: Strength Tests." In ASME 2007 Pressure Vessels and Piping Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/pvp2007-26414.

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Thermal fatigue strength tests subjected to sinusoidal fluid temperature waves were performed by the SPECTRA test facility, where frequencies were 0.05, 0.2, and 0.5Hz. Cracks were observed on the inner surface of cylindrical test pieces after testing. 0.05Hz’s wave caused a greater number of and deeper cracks than 0.5Hz’s wave under the same fluid temperature range and the same fatigue cycles. The crack initiation region of the 0.05Hz’s wave was larger than for the 0.5Hz’s wave. Estimated fatigue failure cycles based on the frequency transfer functions were compared with test results. Frequency-dependency in failure cycles was observed through these test results, and frequency transfer functions could estimate this dependency. The test results supported the fatigue damage evaluation method with frequency transfer functions.
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Bilici, Temel, Nermin Topaloglu, Ozgur Tabakoglu, Hamit Kalaycioglu, Adnan Kurt, Alphan Sennaroglu, and Murat Gulsoy. "Welding by Thulium laser system: Tensile strength tests." In 2010 15th National Biomedical Engineering Meeting (BIYOMUT 2010). IEEE, 2010. http://dx.doi.org/10.1109/biyomut.2010.5479809.

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Araújo Oliveira, Ana Luisa, Carla Valente, and Alda Marques. "Measurement properties of muscle strength tests in AECOPD." In ERS International Congress 2017 abstracts. European Respiratory Society, 2017. http://dx.doi.org/10.1183/1393003.congress-2017.pa4706.

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Guimaraes, Cassiano, Frederico De Castro Machado, and Leonardo Gasparini. "Deepwater Equipment for Flooding, Cleaning, Gauging, and Strength Tests." In SPE Latin American and Caribbean Petroleum Engineering Conference. Society of Petroleum Engineers, 2010. http://dx.doi.org/10.2118/139197-ms.

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Reports on the topic "Strength tests"

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A. M. Weidner, C. P. Pantelides, W. D. Richins, and T. Dynamic Tests of High Strength Concrete Cylinders. Office of Scientific and Technical Information (OSTI), October 2012. http://dx.doi.org/10.2172/1084653.

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Verrill, Steve, David E. Kretschmann, and James W. Evans. Simulations of solid lumber strength property monitoring tests. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 2017. http://dx.doi.org/10.2737/fpl-rp-684.

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Dalal, Reeshad S., Rustin D. Meyer, Irwin J. Jose, Richard Hermida, Ronald P. Vega, Tiffani R. Chen, Andrew Hale, and Charlie K. Brooks. Dissecting Situational Strength: Theoretical Analysis and Empirical Tests. Fort Belvoir, VA: Defense Technical Information Center, September 2012. http://dx.doi.org/10.21236/ada564311.

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Burns, Carolyn A., Richard C. Daniel, Carl W. Enderlin, Maria Luna, and Andrew J. Schmidt. Shear Strength Measurement Benchmarking Tests for K Basin Sludge Simulants. Office of Scientific and Technical Information (OSTI), June 2009. http://dx.doi.org/10.2172/1009771.

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Hagengruber, Tyler. Strength, Fracture Evolution, and Permeability Changes from Confined Brazilian Tests on Sandstone. Office of Scientific and Technical Information (OSTI), May 2021. http://dx.doi.org/10.2172/1781368.

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Farmer, M. T., S. Lomperski, R. W. Aeschlimann, and D. J. Kilsdonk. OECD MCCI Project: Small-Scale Water Ingression and Crust Strength Tests (SSWICS) (Final Report: Category 1 Test Results). Office of Scientific and Technical Information (OSTI), November 2010. http://dx.doi.org/10.2172/1177572.

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Lomperski, S., M. T. Farmer, R. W. Aeschlimann, and D. J. Kilsdonk. OECD MCCI Project: Small-Scale Water Ingression and Crust Strength Tests (SSWICS) (Final Report, Category 1 Test Results). Office of Scientific and Technical Information (OSTI), November 2010. http://dx.doi.org/10.2172/1177590.

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Fields, R. J., S. R, III Low, and D. E. Harne. Static and dynamic strength tests on electrical conductor cables specified for airport landing structures. Gaithersburg, MD: National Institute of Standards and Technology, 1991. http://dx.doi.org/10.6028/nist.ir.88-3884.

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Heuze, F. E. Estimating the Deformability and Strength of Rock Masses - In-Situ Tests, and Related Procedures. Office of Scientific and Technical Information (OSTI), June 2003. http://dx.doi.org/10.2172/15005085.

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Lomperski, S., M. T. Farmer, D. Kilsdonk, and B. Aeschlimann. Small-Scale Water Ingression and Crust Strength Tests (SSWICS) SSWICS-6 test data report : thermal hydraulic results, Rev. 0. Office of Scientific and Technical Information (OSTI), June 2011. http://dx.doi.org/10.2172/1037555.

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