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A nonlocal plasticity formulation for the material point method
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DOI：10.1016/j.cma.2012.03.007.png)
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摘要
En 中文
A new multi-variate fixed-point iteration scheme is devised for solving the coupled dynamic integral equations governing nonlocal plasticity using the material point method (MPM). Novel use of the MPM grid for particle-particle communications results in a simple and efficient, matrix-free method. Moreover, a straightforward method for deriving a convergence criterion for this method is developed and applied to two classical verification problems that are well known to be mesh dependent with a local model, but are shown to be mesh-independent with the new nonlocal MPM formulation. (C) 2012 Elsevier B.V. All rights reserved.
Keyword:
Nonlocal plasticity
Material point method
Localization
Integral equations
Fixed-point iteration
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IF:
7.3
论文数:
1.3W
被引数:
5.6W
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