Výsledky vyhledávání - semi-implicit stress integration algorithm

Development of semi-implicit midpoint and Romberg stress integration algorithms for single hardening soil constitutive models Autor Lal, Divyanshu Kumar, Das, Arghya

“…Purpose Semi-implicit type cutting plane method (CPM) and fully implicit type closest point projection method (CPPM…”
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Semi-implicit finite strain constitutive integration and mixed strain/stress control based on intermediate configurations Autor Areias, P., Rabczuk, T., César de Sá, J., Alves, J.L.

“…•Replacement of the complementarity condition by the Chen–Mangasarian function. A new semi-implicit stress integration algorithm for finite strain plasticity…”
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Constitutive model for the dynamic response of a NiTi shape memory alloy Autor Shi, Xiaohong, Zeng, Xiangguo, Chen, Huayan

“… The constitutive model for a NiTi alloy was implemented using a semi-implicit stress integration algorithm…”
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Implementation and Application of a State-Dependent Sand Model in Finite Element Analysis Autor Yang, Chun-jie, Cai, Zheng-yin, Zhu, Xun, Fan, Kai-fang, Li, Guang, Liu, Chao-yin

“… (Spatially Mobilized Plane) criterion. The sand model was implemented through the user-defined subroutine VUMAT in ABAQUS, using a semi-implicit stress integration algorithm to enable its application in numerical analysis…”
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NiTi合金的相变-塑性统一本构模型与数值算法 Autor 李云飞;陈成;曾祥国

“…为了准确描述NiTi形状记忆合金的相变与塑性力学行为,基于不可逆热力学理论框架并假定两个内变量分别表征合金变形过程中的相变与塑性行为,推导出其相变、塑性的主控方程,总…”
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Unified Constitutive Model and Numerical Implementation of NiTi Alloy Involving Phase Transformation and Plasticity Autor Li, Yunfei, Chen, Cheng, Zeng, Xiangguo

“… Adopting semi-implicit stress integration algorithm to update inelastic strain increment, the phenomenological-based constitutive model was numerically implemented with FORTRAN code…”
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A semi-implicit finite strain shell algorithm using in-plane strains based on least-squares Autor Areias, P., Rabczuk, T., de Sá, J. César, Natal Jorge, R.

“… We perform a semi-implicit integration in the stress update algorithm for finite strain plasticity…”
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Stabilization of a smoothed finite element semi-implicit coupling scheme for viscoelastic fluid–structure interaction Autor He, Tao

“… To enhance the stability of the semi-implicit coupling algorithm, the discrete elastic-viscous split stress-gradient (DEVSS-G…”
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A semi-implicit integration scheme for a combined viscoelastic-damage model of plastic bonded explosives Autor Buechler, Miles A., Luscher, Darby J.

“… This work presents a new semi‐implicit update scheme suitable for simulations using relatively large time steps…”
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Semi-implicit finite strain constitutive integration of porous plasticity models Autor Areias, P., Rabczuk, T., César de Sá, J.

“…Two porous plasticity models, Rousselier and Gurson–Tvergaard–Needleman (GTN), are integrated with a new semi-implicit integration algorithm for finite strain plasticity…”
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Semi-Implicit Algorithm for Elastoplastic Damage Models Involving Energy Integration Autor Zhang, Ji, Li, Jie

“…This study aims to develop a semi-implicit constitutive integration algorithm for a class of elastoplastic damage models where calculation of damage energy release rates involves integration of free energy…”
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A new semi-implicit formulation for multiple-surface flow rules in multiplicative plasticity Autor Areias, P., Dias-da-Costa, D., Pires, E. B., Barbosa, J. Infante

“… (isotropic and anisotropic) flow rules. We include multiple surface yield criteria and mixed control of stress components, a requirement for special stress states such as plane stress or uniaxial stress…”
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Enhanced particle method with stress point integration for simulation of incompressible fluid-nonlinear elastic structure interaction Autor Falahaty, Hosein, Khayyer, Abbas, Gotoh, Hitoshi

“…) with incorporation of stress point integration (Randles and Libersky, 2005) to resolve instabilities related to zero-energy modes…”
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OXFORD-UMAT: An efficient and versatile crystal plasticity framework Autor Demir, Eralp, Martinez-Pechero, Alvaro, Hardie, Chris, Tarleton, Edmund

“… including explicit, semi-implicit, and fully-implicit for computational efficiency that can be set by the user…”
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A state-dependent non-coaxial model of sand using a modified vertex theory and its FEM application Autor Wang, Xing, Kong, Liang, Li, Xue-feng, Ma, Wen-guo

“… Furthermore, in order to use the established model to analyze the bearing capacity of foundation, the formulas corresponding to the semi-implicit integration algorithm are derived, and then the…”
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Multi-rate time stepping schemes for hydro-geomechanical model for subsurface methane hydrate reservoirs Autor Gupta, Shubhangi, Wohlmuth, Barbara, Helmig, Rainer

“…•Semi-Implicit and Compound-fast MRT methods are proposed based on Implicit–Explicit approach.•Semi-Implicit MRT gives higher speed-up but lower accuracy compared to Compound-fast MRT…”
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Return mapping for nonsmooth and multiscale elastoplasticity Autor Tu, Xuxin, Andrade, José E., Chen, Qiushi

“… The semi-implicit nature of the algorithm stems from “freezing” the plastic internal variables at their previous state, followed by implicitly integrating the stresses and plastic multiplier…”
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Modeling differential permanent softening under strain-path changes in sheet metals using a modified distortional hardening model Autor Lee, Jinwoo, Bong, Hyuk Jong, Kim, Daeyong, Lee, Myoung-Gyu

“… in the original HAH model. The modified HAH (M-HAH) model is implemented in a commercial finite element software using the user-defined material subroutine, and validated well by reproducing the flow stress behaviors after differently programmed…”
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On the efficiency and accuracy of stress integration algorithms for constitutive models based on non-associated flow rule Autor Hippke, Holger, Manopulo, Niko, Yoon, Jeong Whan, Hora, Pavel

“… The present work aims to make a systematic comparison of two different stress integration algorithms, used in conjunction to non-associated flow rule…”
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An invariant-based elasto-visco-plastic model for unidirectional polymer composites at finite strains Autor Rodrigues Lopes, Igor A., Camanho, Pedro P., Andrade Pires, Francisco M., Arteiro, Albertino

“…An invariant-based constitutive model for unidirectional composites, including viscous effects in the elastic and plastic regimes at finite strains, is…”
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