激光-载荷联合作用下碳纤维/环氧树脂板的断裂阈值研究  

INVESTIGATION ON THE FRACTURE THRESHOLD OF WOVEN CARBON-FIBER/EPOXY PLATES UNDER MECHANICAL LOADING AND HEATING BY INCIDENT LASER BEAMS

作　　者：黄国君[1] 杨治星[1] 段祝平[1] 

机构地区：[1]中国科学院力学研究所非线性力学开放实验室,北京100080

出　　处：《强激光与粒子束》1999年第6期677-681,共5页High Power Laser and Particle Beams

基　　金：中科院九五重大项目!KJ951-1-201

摘　　要：介绍了激光－载荷联合作用下碳纤维／环氧树脂编织复合材料单边缺口板断裂的实验和理论研究。实验测量了断裂阈值曲线，并结合显微观察确定了三种断裂模式：热应力、热减薄和热击穿模式。获得了热应力模式断裂的理论判据，与实验结果基本吻合。该判据建立了断裂临界条件下热－力和几何参数与材料性能参数之间的关系。The fracture threshold of the woven carbon-fiber/epoxy plates with single-side notch under combined mechanical loading and heating by incident beam is studied experimentally and theoretically.The threshold curve was measured and the fracture modes were identified through the observation of microscopy, they are thermal stressing, thermal thinning and thermal puncture. For the mode of thermalstressing corresponding to lower power laser beams, a theoretical criterion of the fracture is developed basedon the analysis with fracture mechanics, in agreement with the experimental result.

关 键 词：激光 力 复合材料 断裂 碳纤维/环氧树脂板 

分 类 号：TB330.1[一般工业技术—材料科学与工程]