复合材料受载时由于纤维、基体、界面等微结构的损伤引起试件产生热量，局部温度升高。本工作采用红外热象技术研究碳纤维增强环氧复合材料不同铺层、不同缺ロ情況（无缺ロ、边缺ロ或中心孔）在静态和疲劳条件下的损伤扩展.根据温升的不同判別材料的损伤程度，按温度分布考察试件的损伤尺度，讨论了应力水平与温升的关系、温升与疲劳寿命的关系。

During the process of da mage in composites microstructures under loading, heat is generated and local temperature will rise in the specimen.In this study frared ther mograpnic technique was used to investigate the damage spread of carbon fiber rein forced epoxy laminates of dif ferent layup either with notch (SEN and CHN ) or unnotched, under static or fatigue loading.The degree of damage was evaluated according to the variation of temperature rise，and the damage dimension of the specimen was examined from the isotherms of tem-perature distribution .The dependence of temperature rise on stress level as well as fatigue life was discussed.