Mechanical Properties and Fracture Microstructure of Polycarbonate under High Strain Rate Tension

被引：4

作者：

Zhang, Sai ^{[1
]}

Wang, Bingqian ^{[2
]}

Meng, Xianming ^{[1
]}

Chen, Yajun ^{[2
]}

机构：

[1] China Automot Technol & Res Ctr Co Ltd, Tianjin 300300, Peoples R China

[2] Civil Aviat Univ China, Sino European Inst Aviat Engn, Tianjin 300300, Peoples R China

来源：

MATERIALS | 2023年 / 16卷 / 09期

基金：

国家重点研发计划;

关键词：

polycarbonate; composite material; high-speed tensile testing;

D O I：

10.3390/ma16093386

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper, static and dynamic tensile tests were conducted on two kinds of polycarbonate (HL6157 and A1225BK), combined with the digital image correlation (DIC), for guiding the development of the battery pack of new energy vehicles. The mechanical properties of polycarbonate at low-speed (0.01/s) and high-speed (1/s, 100/s) tension were investigated and the microstructure of the fracture for polycarbonate at different speed tensions was also investigated. The fracture microstructure of two kinds of materials was also investigated in this paper. The tension results showed that as the strain rate increased, the yield strength and modulus increased, and the yield strength of the two materials increased by 30% under high-speed tension. In addition, the fracture strain increase was greater than 10% as the strain rate increased. Meanwhile, for polycarbonate, the strain rate increased, and the fracture toughness increased.

引用

页数：11

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