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Artykuły w czasopismach na temat "R-curve"
Ghadirdokht, A., i M. Heidari-Rarani. "Delamination R-curve behavior of curved composite laminates". Composites Part B: Engineering 175 (październik 2019): 107139. http://dx.doi.org/10.1016/j.compositesb.2019.107139.
Pełny tekst źródłaSarkar, Debasish, Bikramjit Basu, Min Cheol Chu i Seong Jai Cho. "R-curve behavior of Ti3SiC2". Ceramics International 33, nr 5 (lipiec 2007): 789–93. http://dx.doi.org/10.1016/j.ceramint.2006.01.002.
Pełny tekst źródłaWolfenden, A., HS Pearson i DE McCabe. "R-Curve Round-Robin Program for ASTM Recommended Practice for R-Curve Determination (E 561)". Journal of Testing and Evaluation 14, nr 4 (1986): 191. http://dx.doi.org/10.1520/jte11261j.
Pełny tekst źródłaFarnsworth, David L. "Axes for symmetric convex curves". Mathematical Gazette 102, nr 553 (8.02.2018): 23–30. http://dx.doi.org/10.1017/mag.2018.4.
Pełny tekst źródłaJiang, Zhengwen, Shui Wan, Thomas Keller, Zhi Fang i Anastasios P. Vassilopoulos. "Influence of curved delamination front on R-curve of DCB specimen". Composite Structures 227 (listopad 2019): 111311. http://dx.doi.org/10.1016/j.compstruct.2019.111311.
Pełny tekst źródłaBujalance, E., G. Gromadzki i M. Izquierdo. "On real forms of a complex algebraic curve". Journal of the Australian Mathematical Society 70, nr 1 (luty 2001): 134–42. http://dx.doi.org/10.1017/s1446788700002329.
Pełny tekst źródłaRödiger, Stefan, Alexander Böhm i Ingolf Schimke. "Surface Melting Curve Analysis with R". R Journal 5, nr 2 (2013): 37. http://dx.doi.org/10.32614/rj-2013-024.
Pełny tekst źródłaSrinivasan, S., i R. O. Scattergood. "R-curve measurements in PSZ ceramics". Journal of Materials Research 5, nr 7 (lipiec 1990): 1490–95. http://dx.doi.org/10.1557/jmr.1990.1490.
Pełny tekst źródłaRosa, V., K. A. Fukushima, M. Borba, H. N. Yoshimura i P. F. Cesar. "R-curve behavior of dental porcelains". Dental Materials 27 (styczeń 2011): e72. http://dx.doi.org/10.1016/j.dental.2011.08.568.
Pełny tekst źródłaVekinis, G., M. F. Ashby i P. W. R. Beaumont. "R-curve behaviour of Al2O3 ceramics". Acta Metallurgica et Materialia 38, nr 6 (czerwiec 1990): 1151–62. http://dx.doi.org/10.1016/0956-7151(90)90188-m.
Pełny tekst źródłaRozprawy doktorskie na temat "R-curve"
Dourado, Nuno Miguel Moura Marcelo de Valentin Gérard. "R-Curve behaviour and size effect of a quasibrittle material wood /". S. l. : S. l. : Bordeaux 1 ; Universidade do Porto (Portugal), 2008. http://ori-oai.u-bordeaux1.fr/pdf/2008/DOURADO_NUNO_2008.pdf.
Pełny tekst źródłaTitre provenant de l'écran-titre.
Dourado, Nuno Miguel. "R-Curve behaviour and size effect of a quasibrittle material : wood". Thesis, Bordeaux 1, 2008. http://www.theses.fr/2008BOR13734/document.
Pełny tekst źródłaThis work concerns the mechanical testing, numerical analysis and modelling of cohesive fracture (Mode I) on the purpose to study the Resistance-curve behaviour and the size effect in wooden notched structures. The mechanical testing is combined with the numerical analysis to evaluate fracture properties by means of an equivalent LEFM approach based on the structure compliance. The Resistance-curve being revealed from the experiments, by means of a self-weight compensation method, correction puts into evidence that a non-negligible damaged domain (Fracture Process Zone) is under development in the crack front during the loading process. This being the case, among other fracture parameters issued from the Resistance-curve, the critical (asymptotic) energy release rate is determined, turning possible to use it in combination with other cohesive crack properties in the crack modelling (in Mode I). Thus, for a given geometry it is possible to monitor the critical dimension being revealed by the Fracture Process Zone (FPZ) during the crack propagation. The well known Bažant’s size effect law provides the scaling of the nominal strength through the asymptotic matching performed both on the small (Strength Theory) and on the large (LEFM) structure sizes. An analytical procedure is proposed to determine an additional asymptotic regime in the intermediate size range through a more accurate manner. Numerical validations of the proposed procedure are made and experimental data is presented revealing the scaling of the nominal strength through an envelop of values
Bernardini, Chiara. "Un risultato di h-principle per curve a curvatura costante in R^n". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/21250/.
Pełny tekst źródłaCheung, C. M. S. "The R-curve approach for the fracture assessment of an aluminium alloy bridge". Thesis, Swansea University, 2001. https://cronfa.swan.ac.uk/Record/cronfa42424.
Pełny tekst źródłaHeinrich, Benedikt [Verfasser], i Heinrich von [Akademischer Betreuer] Weizsäcker. "Curve interactions in R^2: An analytical and stochastical approach / Benedikt Heinrich. Betreuer: Heinrich von Weizsäcker". Kaiserslautern : Technische Universität Kaiserslautern, 2013. http://d-nb.info/1044294183/34.
Pełny tekst źródłaColafemea, Angelo Antonio. "Modelamento numérico da técnica de normalização linear para determinação de curvas J-R". Universidade de São Paulo, 2001. http://www.teses.usp.br/teses/disponiveis/88/88131/tde-20092016-115454/.
Pełny tekst źródłaIn this research, results from Reese; Schwalbe (1993) linear normalization methodology for deriving J-R curves are compared to those obtained from the traditional unloading elastic compliance technique. Both methodologies were applied to a nuclear grade steel A508-CL3A. Several miniaturized 0.394TC[S] specimens, were tested at typical NPV operating temperatures. Small scale testpieces were heat treated aiming to simulate the embritlemment exhibited by the structural steel when submitted to different levels of neutron exposure, whereas other specimens were tested in the as-received condition. All experimental and analytical procedures employed in this study have been fully computerized, including data acquisition, data refinement and J-R curve plotting, when the guidelines supplied by most recent version of ASTM standard for J-R curves, namely ASTM-E1820, were followed. The assessed variables affecting J-R curves behavior comprised crack propagation increment, number of load-Ioad line displacement data points, and it was also analyzed the agreement of the normalization method when compared to the compliance technique. Research results have shown that linear normalization is a trustworthy and very simple methodology to be applied in a vast range of mechanical behavior as sampled in this study, as long as computer programming is employed.
Zúñiga, Munizaga Andrés Jahir. "Entire solutions to the inhomogeneous allen-cahn equation in R^2, with a transition on a noncompact curve". Tesis, Universidad de Chile, 2012. http://www.repositorio.uchile.cl/handle/2250/111186.
Pełny tekst źródłaEste trabajo de memoria de título presenta un estudio de la ecuación de perturbación singular de Allen-Cahn con inhomogeneidad: \begin{equation}\ep^2\div\left(a(x)\cdot\nabla_{x}u(x)\right)+a(x)f(u(x))=0,\quad\text{ en }\quad\R^2 \label{AllenCahnEq}\end{equation} donde $\varepsilon>0$ es un parámetro pequeño, $a(x)$ es un potencial uniformemente positivo y suave, que induce una forma de medir distancias para puntos en $\R^2$, y $f$ es la nolinealidad dada por $f(u)=u-u^3$. El estudio aborda la construcción de soluciones enteras de~\eqref{AllenCahnEq}, bajo la condición que $u$ se anule cerca de una curva $\Gamma\subset \R^2$. El enfoque propuesto asume que $\Gamma$ es una curva no acotada, geodésica no-degenerada relativa al funcional de longitud de arco $\int_{\Gamma}a(\vec{x})$, con curvatura $k_{\Gamma}$ suave que decae a una tasa polinomial. Es de interés el estudio de la ecuación de Allen-Cahn con presencia de un término de inhomogeneidad $a(x)\not\equiv 1$, ya que esto conlleva el estudio de curvas geodésicas para una métrica no trivial de $\R^2$. Además, es relevante considerar que el conjunto nodal de $u$ yace cerca de una curva no acotada, pues esto se refleja en el estudio de ecuaciones diferenciales en contextos no compactos. El resultado principal asegura la existencia de una solución de~\eqref{AllenCahnEq}, la cual converge exponencialmente a $\pm 1$ cuando $x$ se aleja de $\Gamma$. Un segundo resultado entrega ejemplos de potenciales $a(x)$ y curvas $\Gamma$, para los cuales es posible construir una solución $u$ con el comportamiento antes descrito. La demostración de este resultado está basada en una técnica conocida como reducción infinito dimensional de Lyapunov-Schmidt, la cual motiva a la elección de un candidato a solución del tipo $u = w + \phi$, donde $w$ en coordenadas adecuadas resuelve $w''+f(w)=0$, y determina el perfil de $u$ a orden principal. Además $\phi$ es una función de corrección, con el fin de convertir a $u$ en solución exacta de~\eqref{AllenCahnEq}, lo que obliga a $\phi$ a resolver una ecuación diferencial no lineal. De ahí en más, el problema consiste en estudiar la existencia y unicidad de la última ecuación en un espacio funcional adecuado. Esto se realizó analizando el operador linealizado asociado a la ecuación de Allen-Cahn, y luego el problema no-lineal que es resuelto mediante un esquema de punto fijo. Para el ultimo análisis, fue necesario ajustar $\Gamma$ en un parámetro de perturbación $h$, lo que equivale a una EDO no lineal en $h$ donde participa la segunda variación del funcional de largo $l_{a,\Gamma}$ asociado a $\int_{\Gamma}a(\vec{x})$. Finalmente, el método utilizado no sólo provee la existencia de una solución $u$ de~\eqref{AllenCahnEq}, sino que además entrega una caracterizacón completa de ésta, tanto en tamaño como en comportamiento cualitativo en coordenadas relacionadas a la curva $\Gamma$.
Pásztor, Bálint. "Analýza přežití v R". Master's thesis, Vysoká škola ekonomická v Praze, 2015. http://www.nusl.cz/ntk/nusl-202126.
Pełny tekst źródłaDzugan, Jan. "Crack lengths calculation by unloading compliance technique for Charpy size specimens". Forschungszentrum Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:d120-qucosa-29077.
Pełny tekst źródłaTilbrook, Matthew Thomas Materials Science & Engineering Faculty of Science UNSW. "Fatigue crack propagation in functionally graded materials". Awarded by:University of New South Wales. Materials Science & Engineering, 2005. http://handle.unsw.edu.au/1959.4/21885.
Pełny tekst źródłaKsiążki na temat "R-curve"
Growth curve analysis and visualization using R. Boca Raton: CRC Press/Taylor & Francis Group, 2014.
Znajdź pełny tekst źródłaOrange, Thomas W. Estimating the R-Curve from residual strength data. [Cleveland, Ohio: National Aeronautics and Space Administration, Lewis Research Center, 1985.
Znajdź pełny tekst źródłaOrange, Thomas W. Method and models for R-Curve instability calculations. [Washington, DC]: National Aeronautics and Space Administration, 1988.
Znajdź pełny tekst źródłaOrange, Thomas W. Method and models for R-Curve instability calculations. [Washington, DC]: National Aeronautics and Space Administration, 1988.
Znajdź pełny tekst źródłaOrange, Thomas W. Method and models for R-Curve instability calculations. [Washington, DC]: National Aeronautics and Space Administration, 1988.
Znajdź pełny tekst źródłaOrange, Thomas W. Estimating the R-Curve from residual strength data. [Cleveland, Ohio: National Aeronautics and Space Administration, Lewis Research Center, 1985.
Znajdź pełny tekst źródłaBradt, R. C. Fracture Mechanics of Ceramics: Composites, R-Curve Behavior, and Fatigue. Boston, MA: Springer US, 1992.
Znajdź pełny tekst źródłaShah, Priti Kotak. Direct J-R curve analysis: Application to testing of nuclear structural materials. Mumbai: Bhabha Atomic Research Centre, 2004.
Znajdź pełny tekst źródłaInternational Symposium on the Fracture Mechanics of Ceramics (7th 1999 Moscow, Russia). Crack-microstructure interaction, R-curve behavior, environmental effects in fracture, and standardization. New York: Kluwer Academic/Plenum, 2002.
Znajdź pełny tekst źródłaHiser, A. L. Tensile and J-R curve characterization of thermally aged cast stainless steels. Washington, DC: Division of Engineering, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1988.
Znajdź pełny tekst źródłaCzęści książek na temat "R-curve"
Munz, Dietrich, i Theo Fett. "R-Curve Behaviour". W Ceramics, 53–75. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-58407-7_4.
Pełny tekst źródłaSteinbrech, Rolf W. "R-Curve Behavior of Ceramics". W Fracture Mechanics of Ceramics, 187–208. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3350-4_14.
Pełny tekst źródłaSakai, M., i M. Inagaki. "R-Curve Behavior of Ceramic Materials". W Sintering ’87, 796–801. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-1373-8_134.
Pełny tekst źródłaMcCabe, D. E. "COD Concepts in R-Curve Testing". W The Crack Tip Opening Displacement in Elastic-Plastic Fracture Mechanics, 81–113. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82818-8_5.
Pełny tekst źródłaLube, T. "A Knoop-Indentation Method for R-Curve Determination". W Fracture Mechanics of Ceramics, 447–56. Boston, MA: Springer US, 2002. http://dx.doi.org/10.1007/978-1-4757-4019-6_34.
Pełny tekst źródłaMachado e Costa, Francisco, i Ana Cristina Braga. "Adjusting ROC Curve for Covariates with AROC R Package". W Computational Science and Its Applications – ICCSA 2020, 185–98. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58808-3_15.
Pełny tekst źródłaMachado e Costa, Francisco, i Ana Cristina Braga. "Exploring Methodologies for ROC Curve Covariate Study with R". W Computational Science and Its Applications – ICCSA 2021, 563–76. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-86973-1_40.
Pełny tekst źródłaBaik, S., S. M. Lee i B. S. Min. "R-curve Behavior of PZT Ceramics near Morphotropic Phase Boundary". W Fracture Mechanics of Ceramics, 371–85. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3350-4_26.
Pełny tekst źródłaBarinov, Sergej M., i Vladimir Ya Shevchenko. "Universal R-curve of Crack Propagation Resistance in Ceramic Composites". W Fracture Mechanics of Ceramics, 209–17. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3350-4_15.
Pełny tekst źródłaFörderreuther, A., G. Thurn i F. Aldinger. "R-Curve Effect and Process Zone in Coarse Grained BaTiO3". W Fracture Mechanics of Ceramics, 243–53. Boston, MA: Springer US, 2002. http://dx.doi.org/10.1007/978-1-4757-4019-6_20.
Pełny tekst źródłaStreszczenia konferencji na temat "R-curve"
Aram, Zainab, i Seyed Kamaledin Setarehdan. "R-R interval simulation based on power spectrum curve fitting". W 2013 20th Iranian Conference on Biomedical Engineering (ICBME). IEEE, 2013. http://dx.doi.org/10.1109/icbme.2013.6782206.
Pełny tekst źródłaHojo, Kiminobu, Kazutoshi Ohoto i Itaru Muroya. "J Resistance Curve Estimation of Inhomogeneous CT Specimen". W 10th International Conference on Nuclear Engineering. ASMEDC, 2002. http://dx.doi.org/10.1115/icone10-22047.
Pełny tekst źródłaTandon, Samarth, Ming Gao, Ravi Krishnamurthy, Richard Kania i Gabriela Rosca. "Estimating J-R Curve From CVN Upper Shelf Energy and its Application". W 2016 11th International Pipeline Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/ipc2016-64618.
Pełny tekst źródłaZhu, Xian-Kui, i Poh-Sang Lam. "Deformation Versus Modified J-Integral Resistance Curves for Ductile Materials". W ASME 2012 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/pvp2012-78729.
Pełny tekst źródłaZhu, Xian-Kui, Sebastian Cravero i Claudio Ruggieri. "Determination of J-R Curve for X60 Pipeline Steel Using SENT Specimens and Normalization Method". W ASME 2009 Pressure Vessels and Piping Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/pvp2009-78089.
Pełny tekst źródłaYue, Hongda, Longfa Pan, Yuejing Bin i Ken Chen. "Optical density curve model for CD-R dye coating". W Optical Storage (ISOS 2002), redaktorzy Fuxi Gan i Zuoyi Li. SPIE, 2003. http://dx.doi.org/10.1117/12.510114.
Pełny tekst źródłaVillanueva, Nora M., Marta Sestelo, Javier Roca-Pardiñas, Theodore E. Simos, George Psihoyios, Ch Tsitouras i Zacharias Anastassi. "An R Package For Analyzing Factor-By-Curve Interactions". W NUMERICAL ANALYSIS AND APPLIED MATHEMATICS ICNAAM 2011: International Conference on Numerical Analysis and Applied Mathematics. AIP, 2011. http://dx.doi.org/10.1063/1.3636960.
Pełny tekst źródłaZhu, Xian-Kui, Tom McGaughy, Fabian Orth i Jon Jennings. "Review of Low-Constraint Fracture Resistance Testing With SENT Specimens". W ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/omae2014-24281.
Pełny tekst źródłaZhu, Xian-Kui, i Brian N. Leis. "Application of Constraint Corrected J-R Curves to Fracture Analysis of Pipelines". W ASME 2005 Pressure Vessels and Piping Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pvp2005-71202.
Pełny tekst źródłaOlson, Richard, i Ben Thornton. "Semi-Closed-Form Displacement Equations for Calculating J-R Curves From Pipe Fracture Experiments". W ASME 2015 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/pvp2015-45571.
Pełny tekst źródłaRaporty organizacyjne na temat "R-curve"
Grutzik, Scott Joseph, Kevin Strong i Steve Xunhu Dai. Investigation of R-Curve Behavior in Glass Ceramic Materials. Office of Scientific and Technical Information (OSTI), wrzesień 2019. http://dx.doi.org/10.2172/1568986.
Pełny tekst źródłaMangin, Christophe. R-Curve Behavior for Silicon Carbide Whisker Reinforced Aluminum Oxide Composites. Fort Belvoir, VA: Defense Technical Information Center, styczeń 1990. http://dx.doi.org/10.21236/ada233958.
Pełny tekst źródłaClowers, Logan N., Alberto Esteban Linares i Xiang Chen. Technical Manual for Automated J-R Curve Analysis Program Based on the ASTM E1820-18 Normalization Method. Office of Scientific and Technical Information (OSTI), październik 2018. http://dx.doi.org/10.2172/1484983.
Pełny tekst źródłaSingh, J. P., C. Y. Chu, C. Murphy i D. Singh. Microstructure / mechanical-property relationships and R-curve behavior in Si{sub 3}N{sub 4}/Si{sub 3}N{sub 4}(w) composites. Office of Scientific and Technical Information (OSTI), czerwiec 1992. http://dx.doi.org/10.2172/10185016.
Pełny tekst źródłaEason, E. D., i E. E. Nelson. Improved model for predicting J-R curves from charpy data: Final report. Office of Scientific and Technical Information (OSTI), kwiecień 1989. http://dx.doi.org/10.2172/6301451.
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