树脂粘弹性与层板横向残余应力的关系  

RELATIONSHIP BETWEEN TRANSVERSE RESIDUAL STRESS IN ARAMID-ALUMINIUM LAMINATE AND VISCOELASTICITY OF RESIN

作　　者：李宏运[1] 胡宏军[1] 郑瑞琪[1] 强伟[1] 

机构地区：[1]北京航空材料研究所八室,北京100095

出　　处：《航空学报》1995年第6期731-735,共5页Acta Aeronautica et Astronautica Sinica

基　　金：国家自然科学基金资助课题

摘　　要：将单向芳纶 -铝合金层板纤维 /树脂层的模量表达为温度和时间的函数 ,为了确定函数中的常数 ,测定了纤维 /树脂层不同频率下的动态粘弹性能 ,测定温度为室温至 2 0 0℃ ,测定常数后 ,代入残余应力计算式进行积分求得层板横向的残余应力 ,为了验证计算结果 ,用应变片包埋法对单向芳纶 -铝合金层板横向残余应力进行了测定 ,并与实验结果进行了比较。结果表明 。The fibre/resin layers in the unidirectional aramid aluminium laminate were considered as viscoelastic layers and the modulus was expressed by a function of temperature and time. In order to determine the constant parameters in the function dynamic mechanical property of the fiber/resin layers was tested under dynamic load with different frequencies. The test temperature ranged from room temperature to 200℃. After the parameters in the function were determined, the transverse residual stress in the laminate was calculated. In order to examine the calculated results, strain gages were embedded in the unidirectional aramid aluminium laminates to measure the transverse residual stresses. The calculated results are in good agreement with the experimental values.

关 键 词：层压板 残余应力 树脂 粘弹性 复合材料 航空 

分 类 号：V250.3[一般工业技术—材料科学与工程] TB333[航空宇航科学与技术—航空宇航制造工程]