从层合板准静压损伤机制出发,根据渐进累积损伤原理,建立了复合材料层合板准静压损伤的有限元模型,合理地描述了复合材料层合板内部不同形式的损伤及其累积过程,进而讨论了在相同的层合板厚度下,单向铺层厚度对层合板准静压损伤的影响。结果表明,单层厚度的增加会加大层合板的基体开裂损伤以及分层损伤的程度,但有利于抑制纤维断裂的发生。 Based on the principle of progressive cumulative damage, a finite element model of quasi-static pressure damage of composite laminates was established based on the quasi-static pressure damage mechanism of laminates. The different forms of damage and their accumulation processes in composite laminates were reasonably described. The effect of unidirectional ply thickness on the quasi-static pressure damage of laminate was discussed at the same laminate thickness. The results show that the increase of monolayer thickness will increase the crack initiation and delamination of the laminates, but it will help to restrain the fiber breakage.