Dynamic Compressive Behavior of a Carbonfiber- Reinforced Composite at Different Temperatures and Strain Rates

被引：0
|
作者：
Wu, Q. G. [1 ]
Zhang, B. Q. [1 ]
Zu, L. [2 ]
Wang, Q. K. [1 ]
Zhang, Q. [2 ]
Zhang, G. M. [2 ]
Fu, J. H. [2 ]
Wang, B. Z. [1 ]
机构：
[1] Hefei Univ Technol, Coll Civil Engn, Hefei 230009, Peoples R China
[2] Hefei Univ Technol, Sch Mech Engn, Hefei 230009, Peoples R China
来源：
MECHANICS OF COMPOSITE MATERIALS | 2025年 / 60卷 / 06期
基金：
中国国家自然科学基金;
关键词：
carbon-fiber-reinforced composite; longitudinal compression; transverse compression; temperature; strain rate; IMPACT;
D O I：
10.1007/s11029-025-10248-z
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
In this study, the compressive behavior of a unidirectional carbon-fiber-reinforced composite in both longitudinal and transverse directions under various temperatures and strain rates was investigated. Its dynamic compressive properties were examined at temperatures of -30, 25, 55, and 85 degrees C by the Hopkinson pressure bar system. The strain rates in longitudinal and transverse compression tests were in the range of 70-125 and 100-320 s-1, respectively. The variations in longitudinal and transverse dynamic compressive strengths with respect to temperature and strain rate are analyzed. It was found that the longitudinal and transverse compressive strengths increased with strain rate and decreased with temperature. The compression failure mechanism and fracture morphology of specimens subjected to similar strain rates at different temperatures were examined. Formulas for the dynamic compressive strengths in the longitudinal and transverse directions were proposed, which took into account variations in the temperature and strain rate. These formulas effectively describe the experimental data obtained in the study.
引用
收藏
页码：1105 / 1116
页数：12
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