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A softening hyperelastic model and simulation of the failure of granular materials
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  • A softening hyperelastic model and simulation of the failure of granular materials
  • A softening hyperelastic model and simulation of the failure of granular materials
저자명
Chang. Jiangfang,Chu. Xihua,Xu. Yuanjie
간행물명
Geomechanics & engineering
권/호정보
2014년|7권 4호|pp.335-353 (19 pages)
발행정보
테크노프레스
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

The softening hyperelastic model based on the strain energy limitation is of clear concepts and simple forms to describe the failure of materials. In this study, a linear and a nonlinear softening hyperelastic model are proposed to characterize the deformation and the failure in granular materials by introducing a softening function into the shear part of the strain energy. A method to determine material parameters introduced in the models is suggested. Based on the proposed models the numerical examples focus on bearing capacity and strain localization of granular materials. Compared with Volokh softening hyperelasticity and classical Mohr-Coulomb plasticity, our proposed models are able to capture the typical characters of granular materials such as the strain softening and the critical state. In addition, the issue of mesh dependency of the proposed models is investigated.