CAJ | 학술논문

裂纹既是复合材料梁构件的主要损伤类型之一,也是构件失效的主要原因之一.材料产生裂纹时,由于内部能量分布的变化,对外显现的动态特性会发生明显变化.对健康构件试样和裂纹损伤试样进行了大量对比研究,找到了损伤状态下动态特性的特征分布,并以此为依据建立了裂纹损伤的诊断规则.
렬문기시복합재료량구건적주요손상류형지일,야시구건실효적주요원인지일.재료산생렬문시,유우내부능량분포적변화,대외현현적동태특성회발생명현변화.대건강구건시양화렬문손상시양진행료대량대비연구,조도료손상상태하동태특성적특정분포,병이차위의거건립료렬문손상적진단규칙.
Crack is one of the chief damages in composite material beams, and it is also one of the chief reasons which results in malfunction. When crack is developed, the inner energy distribution will change, causing the apparent change of the dynamic behaviour. With massive comparative trials to both healthy samples and damaged samples, the characteristic distribution of dynamic behaviour can be obtained, and based on it the diagnosis criteria for crack damage can be established