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Nonlocal Peridynamic Models for Dynamic Brittle Fracture in Fiber-Reinforced Composites: Study on Asymmetrically Loading State

섬유강화 복합재의 동적 취성 파괴현상 규명을 위한 비국부 페리다이나믹스 해석법 개발: 비대칭 하중 연구

Ha, Youn Doh;Cho, Seonho
하윤도;조선호

  • Received : 2012.06.13
  • Accepted : 2012.07.25
  • Published : 2012.08.31

Abstract

In this paper a computational method for a homogenized peridynamics description of unidirectional fiber-reinforced composites is presented. For these materials, dynamic brittle fracture and damage are simulated with the proposed peridynamic model. Compared with observations from dynamic experiments by Coker et al.(2001), the peridynamic computational model can reproduce various characteristics of dynamic fracture and supersonic or intersonic crack growth in asymmetrically loaded unidirectional fiber-reinforced composite plates. Also we analyze the same model in the symmetric loading condition and figure out that the asymmetric loading leads to a much higher propagation speed. Consistent results have been reported in the experiments.

Keywords

dynamic brittle fracture;crack propagation;fiber-reinforced composites;peridynamics;nonlocal model

References

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Cited by

  1. State-based Peridynamic Modeling for Dynamic Fracture of Plane Stress vol.28, pp.3, 2015, https://doi.org/10.7734/COSEIK.2015.28.3.301
  2. Dynamic Fracture Analysis with State-based Peridynamic Model: Crack Patterns on Stress Waves for Plane Stress Elastic Solid vol.28, pp.3, 2015, https://doi.org/10.7734/COSEIK.2015.28.3.309

Acknowledgement

Supported by : 교육과학기술부