摘要
采用'离位'增韧技术对双马来酰亚胺复合材料层压板进行了层间增韧,然后对增韧和未增韧的两种双马复合材料层压板进行准静态压入及冲击后压缩剩余强度试验研究,并用超声C扫描和热揭层对层压板的损伤进行测量。结果表明:经过'离位'增韧的双马复合材料层压板层间形成了热塑性树脂/热固性树脂双连续的结构,该结构不仅能抑制增韧层压板的内部损伤面积,改善损伤阻抗,使其表面凹坑深度更明显,而且还大幅提高了其损伤容限。
The bismaleimide composite laminates were toughened via ＂Exc-situ＂ toughened technique. Then the toughened and non-toughened composite laminates were tested by using the quasi-static in- dentation and compression after impact, and the damage of laminates was also investigated by ultra- sonic C-scan and deply. The results indicate that the thermoplastic resin/thermoset resin bicontinuous structure forms in the interlayer of the toughened bismaleimide laminates. The special structure can inhibit the damage area of the toughened laminates and improve the damage resistance of laminates, resulting in a more apparent dent depth on the laminates surface. In addition, the damage tolerance of laminates is also improved.
出处
《材料工程》
EI
CAS
CSCD
北大核心
2012年第9期88-91,98,共5页
Journal of Materials Engineering
基金
国家973项目(2010CB631101)
关键词
复合材料层压板
层间增韧
准静态压入
损伤阻抗
损伤容限
composite laminate
interlaminar toughness
quasi-static indentation
damage resistance
damage tolerance
