Modeling of hyperelastic polymer gels under blunt ballistic impact with three-dimensional flexibilities

Zhang Y.; Yin B.B.; Sun W.K.Liew K.M.

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Modeling of hyperelastic polymer gels under blunt ballistic impact with three-dimensional flexibilities

机译：Modeling of hyperelastic polymer gels under blunt ballistic impact with three-dimensional flexibilities

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? 2023 Elsevier B.V.Polymer gels are promising surrogates for human tissues, whereas simulating the behavior of these materials in 3D scenarios, particularly when they are subjected to dynamic loads, can be a complex and computationally demanding task. This work presents a solution to this challenge through developing a three-dimensional meshfree framework based on bond-based peridynamics. The novelties of this method are threefold: (1) The peridynamic bond force–stretch? relationship of the Mooney–Rivlin hyperelastic model is original formulated and implemented based on thermomechanical theories and energy equivalence principles; (2) A novel contact algorithm is proposed to reduce the complexity of realistic loading and boundary conditions in blunt ballistic impact simulations; (3) This computational framework enables 3D dynamic simulations of hyperelastic polymer gels with complex geometric configurations. Tensile and compressive tests with varying loading rates are studied to validate the capability and accuracy of the proposed method. The proposed computational framework outperforms its finite element counterparts in modeling blunt impacts on polymer gels. It can be readily extended to penetration impact problems since accounting for failures is straightforward in this peridynamics framework.

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《Computer Methods in Applied Mechanics and Engineering》 |2023年第1期|1.1-1.18|共18页
作者
Zhang Y.; Yin B.B.; Sun W.K.Liew K.M.;
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作者单位

School of Science Nanjing University of Science and Technology;

Department of Architecture and Civil Engineering City University of Hong Kong||Centre for Nature-Inspired Engineering City University of Hong Kong;

Department of Architecture and Civil Engineering City University of Hong Kong;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
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关键词
Blunt ballistic impact; Hyperelastic materials; Large deformation; Peridynamic modeling;

Modeling of hyperelastic polymer gels under blunt ballistic impact with three-dimensional flexibilities

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