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Relevant bibliographies by topics / Elasto-plastic validation

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Journal articles

Academic literature on the topic 'Elasto-plastic validation'

Author: Grafiati

Published: 8 September 2021

Last updated: 1 February 2022

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Journal articles on the topic "Elasto-plastic validation"

1

Deb, Debasis, and Kamal C. Das. "Bolt-Grout Interactions in Elastoplastic Rock Mass Using Coupled FEM-FDM Techniques." Advances in Civil Engineering 2010 (2010): 1–13. http://dx.doi.org/10.1155/2010/149810.

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Numerical procedure based on finite element method (FEM) and finite difference method (FDM) for the analysis of bolt-grout interactions are introduced in this paper. The finite element procedure incorporates elasto-plastic concepts with Hoek and Brown yield criterion and has been applied for rock mass. Bolt-grout interactions are evaluated based on finite difference method and are embedded in the elasto-plastic procedures of FEM. The experimental validation of the proposed FEM-FDM procedures and numerical examples of a bolted tunnel are provided to demonstrate the efficacy of the proposed method for practical applications.

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2

Veselý, Jan. "NUMERICAL MODELLING OF THE SOIL BEHAVIOUR BY USING NEWLY DEVELOPED ADVANCED MATERIAL MODEL." Acta Polytechnica 57, no. 1 (2017): 58–70. http://dx.doi.org/10.14311/ap.2017.57.0058.

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This paper describes a theoretical background, implementation and validation of the newly developed Jardine plastic hardening-softening model (JPHS model), which can be used for numerical modelling of the soils behaviour. Although the JPHS model is based on the elasto-plastic theory, like the Mohr-Coulomb model that is widely used in geotechnics, it contains some improvements, which removes the main disadvantages of the MC model. The presented model is coupled with an isotopically hardening and softening law, non-linear elastic stress-strain law, non-associated elasto-plastic material description and a cap yield surface. The validation of the model is done by comparing the numerical results with real measured data from the laboratory tests and by testing of the model on the real project of the tunnel excavation. The 3D numerical analysis is performed and the comparison between the JPHS, Mohr-Coulomb, Modified Cam-Clay, Hardening small strain model and monitoring in-situ data is done.

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3

Piven, V. V., and G. E. Bityukov. "VALIDATION OF THE MATHEMATICAL MODEL OF FRAME CONSTRUCTION STRESS-STRAIN STATE." Oil and Gas Studies, no. 3 (June 30, 2015): 107–11. http://dx.doi.org/10.31660/0445-0108-2015-3-107-111.

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The problem of optimization of the stress-strain state of spatial beam structures with incorporation on elasto-visco-plastic base was reviewed. The rheological models of bases were analyzed. A block diagram of the mathemati-cal model of the construction optimization was developed. The objective function for optimization was defined.

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4

Karg, C., S. François, W. Haegeman, and G. Degrande. "Elasto-plastic long-term behavior of granular soils: Modelling and experimental validation." Soil Dynamics and Earthquake Engineering 30, no. 8 (2010): 635–46. http://dx.doi.org/10.1016/j.soildyn.2010.02.006.

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5

Kim, Hee-Seong, Seung-Gyo Jang, Nam-Ho Kim, and Joo-Ho Choi. "Statistical calibration and validation of elasto-plastic insertion analysis in pyrotechnically actuated devices." Structural and Multidisciplinary Optimization 54, no. 6 (2016): 1573–85. http://dx.doi.org/10.1007/s00158-016-1545-8.

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6

Paparizos, L. G., and W. D. Iwan. "Some Observations on the Random Response of an Elasto-Plastic System." Journal of Applied Mechanics 55, no. 4 (1988): 911–17. http://dx.doi.org/10.1115/1.3173741.

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The nature of the response of strongly yielding systems subjected to random excitation, is examined. Special attention is given to the drift response, defined as the sum of yield increments associated with inelastic response. Based on the properties of discrete Markov process models of the yield increment process, it is suggested that for many cases of practical interest, the drift can be considered as a Brownian motion. The approximate Gaussian distribution and the linearly divergent mean square value of the process, as well as an expression for the probability distribution of the peak drift response, are obtained. The validation of these properties is accomplished by means of a Monte Carlo simulation study.

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7

MA, YONG, ZHAO YANG, SHENGWANG YU, et al. "ELASTO-PLASTIC PROPERTIES OF Mo-MODIFIED Ti DEDUCED FROM INDENTATION TESTS AND FINITE ELEMENT ANALYSIS." Surface Review and Letters 26, no. 07 (2019): 1850225. http://dx.doi.org/10.1142/s0218625x18502256.

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The aim of this paper is to establish an approach to quantitatively determine the elasto-plastic parameters of the Mo-modified Ti obtained by the plasma surface alloying technique. A micro-indentation test is conducted on the surface under 10[Formula: see text]N. Considering size effects, nanoindentation tests are conducted on the cross-section with two loads of 6 and 8[Formula: see text]mN. Assuming nanoindentation testing sublayers are homogeneous, finite element reverse analysis is adopted to determine their plastic parameters. According to the gradient distributions of the elasto-plastic parameters with depth in the Mo-modified Ti, two types of mathematical expressions are proposed. Compared with the polynomial expression, the linear simplified expression does not need the graded material to be sectioned and has practical utility in the surface treatment industry. The validation of the linear simplified expression is verified by the micro-indentation test and corresponding finite element forward analysis. This approach can assist in improving the surface treatment process of the Mo-modified Ti and further enhancing its load capacity and wear resistance.

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8

Galavi, Vahid. "DeltaSand: A state dependent double hardening elasto-plastic model for sand: Formulation and validation." Computers and Geotechnics 129 (January 2021): 103844. http://dx.doi.org/10.1016/j.compgeo.2020.103844.

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9

Bartkowski, Piotr, and Robert Zalewski. "Empirical determination of the mechanical properties of Vacuum Packed Particles." MATEC Web of Conferences 254 (2019): 05008. http://dx.doi.org/10.1051/matecconf/201925405008.

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In this work the experimental test of Vacuum Packed Particles (VPP) under 3-point bending are presented. VPP it is the structure compose of grains inside the plastomer coating. When the pressure inside is equal or higher than zero structure behave like a liquid, otherwise like a elasto-plastic solid. Three types of grain material and different values of underpressure were tested. Results presented in this paper will be used in the further work for the numerical model validation procedure.

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10

HASHIMOTO, Ryota, Tomofumi KOYAMA, Mamoru KIKUMOTO, and Mamoru MIMURA. "Development of an enhanced elasto-plastic NMM-DDA with node-based element and its validation." Japanese Geotechnical Journal 11, no. 2 (2016): 163–77. http://dx.doi.org/10.3208/jgs.11.163.

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