期刊
COMPUTERS & STRUCTURES
卷 188, 期 -, 页码 63-79出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compstruc.2017.03.019
关键词
Zero-energy mode; State-based peridynamics; Non-ordinary; Stability
资金
- College of Engineering at the University of Georgia
- University of Georgia Research Foundation
This paper presents a numerical method to control the spurious deformation mode conventionally found in a non-ordinary state-based peridynamic formulation. The proposed approach introduces a higher order approximation for a deformation gradient tensor in order to suppress oscillations from the zero energy mode. The results are compared to those determined by other available methods. The findings of this study well demonstrate that the proposed method provides highly effective solutions for controlling zero-energy modes in peridynamic models. Contrasting other available zero-energy control methods, the proposed method remains robust for relatively large horizon sizes. The method is incorporated by implicit weight functions in peridynamics. Published by Elsevier Ltd.
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