Investigating the Taylor impact problem of an elastic rod using the Rayleigh-Love rod theory

被引：5

作者：

Yang, Hongsheng ^{[1
,2
,3
]}

Zhou, Fenghua ^{[1
]}

Li, Yulong ^{[3
]}

Zheng, Yuxuan ^{[1
,2
]}

机构：

[1] Ningbo Univ, MOE Key Lab Impact & Safety Engn, Ningbo 315211, Peoples R China

[2] China Acad Engn Phys, Inst Fluid Phys, Natl Key Lab Shock Wave & Detonat Phys, Mianyang 621999, Peoples R China

[3] Northwestern Polytech Univ, Joint Int Res Lab Impact Dynam & Its Engn Applica, Xian 710072, Peoples R China

来源：

EUROPEAN JOURNAL OF MECHANICS A-SOLIDS | 2022年 / 93卷

关键词：

Taylor impact; Transverse inertia effect; Rayleigh-Love theory; Analytical solution; Coefficient of restitution; Local tensile stress; FLAT-ENDED PROJECTILES; DYNAMIC YIELD-STRESS; CONCRETE-LIKE MATERIALS; STRENGTH ENHANCEMENT; RADIAL INERTIA; FAILURE WAVES; BAR; DEFORMATION; PROPAGATION;

D O I：

10.1016/j.euromechsol.2022.104551

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

This paper studies the Taylor impact problem of an elastic rod with finite length based on the 1D Rayleigh-Love rod theory which incorporates the transverse inertia effect. Using the Laplace transform method, the solutions of the transient responses of the rod are obtained in series expression. The rebound time and the coefficient of restitution (COR) of the rod are calculated, and the impact-induced lateral additional stress is evaluated. It is shown that the amplitude of the local tensile stress can reach 10%-20% of the axial compression stress near the impact end, which may cause significant damage to the brittle rod. The analytical results agree well with the results from finite element simulations. Our work can provide a theoretical basis for the failure analysis of brittle materials under Taylor impact.

引用

页数：9

共 36 条

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