期刊
COMPUTATIONAL MECHANICS
卷 61, 期 4, 页码 499-518出版社
SPRINGER
DOI: 10.1007/s00466-017-1469-1
关键词
Peridynamics; Surface correction; Elasticity; J-integral; Fictitious node method
资金
- AFOSR MURI Center for Materials Failure Prediction through Peridynamics
- ONR grant
Peridynamic models are derived by assuming that a material point is located in the bulk. Near a surface or boundary, material points do not have a full non-local neighborhood. This leads to effective material properties near the surface of a peridynamic model to be slightly different from those in the bulk. A number of methods/algorithms have been proposed recently for correcting this peridynamic surface effect. In this study, we investigate the efficacy and computational cost of peridynamic surface correction methods for elasticity and fracture. We provide practical suggestions for reducing the peridynamic surface effect.
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