Thermal ageing effects on mechanical properties and barely visible impact damage behavior of a carbon fiber reinforced bismaleimide composite

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• 作者：Wang Shaoquan^a ; ^{Yangyangibm@163.com} ; Dong Shangli^a ; Gao Yu^b ; Sun Yungang^b
• 关键词：Composite ; Bismaleimide ; Thermal ageing ; Mechanical property ; Impact damage
• 刊名：Materials & Design
• 出版年：2017
• 出版时间：5 February 2017
• 年：2017
• 卷：115
• 期：Complete
• 页码：213-223
• 全文大小：2092 K
• 卷排序：115

文摘

A Cf/BMI composite experienced high temperature exposure and remained favorable mechanical performance. Thermal ageing degraded static mechanical properties by inducing decomposition, interface debonding and microcracks. A modified C-scan technique was valid in determining efficiency of absorbed energy and impact failure mechanism. Thermal ageing enhanced critical transition from barely impact damage to visually detectable impact damage. Barely visible impact damage characteristics and corresponding mechanism of aged composite were revealed.