带圆孔与带裂纹层压板复合材料损伤容限对比研究

摘要

通过计算、分析带圆孔与带裂纹层压板复合材料损伤容限，明确了当复合材料出现裂纹时，不能像金属材料那样，通过将裂纹切成圆孔来提高其剩余强度，否则会加重复合材料的损伤程度。研究可为飞机复合材料构件战伤抢修提供参考和依据。%By means of computation and analysis of damage tolerance of composite laminates with holes or crack,the conclusion is brought that crack on laminates can’t be cut into holes to improve the residual strength;otherwise,the damage will become more serious.The methods and conclusion can be reference and basis for battle damage repair of airplane com-posite component.