期刊
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
卷 161, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijmecsci.2019.105030
关键词
Indentation; EPS foam; Ball impact; Theoretical analysis; Simulation
资金
- National Natural Science Foundation of China [11672117, 11502177]
- Natural Science Fund for Distinguished Young Scholars of Hubei Province
In this paper, a comprehensive study on the static and dynamic indentation of expanded polystyrene (EPS) foam blocks with a ball is carried out. An experimental study is carried out first to investigate the force response of EPS foams indented by a ball. The loading and unloading property and the strain rate effect of the EPS foams are also investigated. Numerical analyses are then performed by nonlinear finite element code LS-DYNA to simulate the tests. A theoretical model is proposed to predict the static and dynamic indentation responses of the EPS foams with a ball. Comparisons show that the theoretical predictions by the present model compare well with the experimental and numerical results.
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