首页|Strain concentration factor of heterogeneous materials and analytical influence functions based on Eshelby tensor

Strain concentration factor of heterogeneous materials and analytical influence functions based on Eshelby tensor

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In this manuscript,Eshelby tensor is employed to assess the strain concentration that arises in the matrix phase at the interface,offering precise values and locations of maximum strain under specific loading conditions for both spherical and cylindrical inclusions.When compared to numerical simulation results,the analytical predic-tions grounded in the Eshelby tensor exhibit satisfactory accuracy.Then an analytical calculation method based on Eshelby tensor for the elastic strain influence functions of reduced-order homogenization(ROH)method is developed and adopted on particle-reinforced and fibrous composites,presenting its feasibility and advantage on off-line stage calculation of ROH method.The error analyses between analytical and numerical results are conducted.The numerical results also exhibit the necessity of finer interface partitioning to obtain the response on micro-scale with higher resolution.

Eshelby tensorStrain concentrationComposite structuresReduced-order-homogenizationInfluence functions

Shanqiao Huang、Zifeng Yuan

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HEDPS,Center for Applied Physics and Technology,Department of Mechanics and Engineering Science,Peking University,Beijing 100871,China

State Key Laboratory for Turbulence and Complex Systems,Peking University,Beijing 100871,China

2024

力学快报(英文)

力学快报(英文)

影响因子:0.163
ISSN:2095-0349
年,卷(期):2024.14(4)