铺层结构对树脂基复合材料层间剪切强度影响的研究  

THE STUDY OF EFFECTS OF STACKING STRUCTURE ON THE INTERLAMINAR SHEAR STRENGTH OF COMPOSITES

作　　者：周磊[1] 黎大胜[2] 侯锐钢[1] 

机构地区：[1]华东理工大学材料科学与工程学院,上海200237 [2]华东电力设计院,上海200237

出　　处：《玻璃钢／复合材料》2016年第9期44-48,共5页Fiber Reinforced Plastics/Composites

摘　　要：主要目的在于利用双切口剪切强度试验法验证手糊成型的玻璃钢层合板铺层顺序以及单向布的相对体积含量对层间剪切强度的影响。实验中六种玻璃钢层合板的铺层方式分别为(UF)_5、(UF,CSM,UF,CSM,UF)、(CSM,UF,CSM,UF,CSM)、(UF,CSM,CSM,CSM,UF)、(CSM,UF,UF,CSM,CSM)、(CSM)_5。单向布相对体积含量依次为100%、60%、40%、40%、40%、0%。通过实验结论发现,单向布相对体积含量对层合板层间剪切强度影响较大,其中铺层方式为(UF)5的层合板通过双切口法得到的层间剪切强度高达40.768 MPa,而铺层方式为(CSM)_5的层合板在双切口法中所测得的层间剪切强度却只有15.867 MPa。相对而言,铺层顺序对层合板的层间剪切强度影响相对较小。同时利用数理统计方法"秩和检验法"对大量实验数据进行了离散性分析,结果表明,在同一种铺层方式下,尽管因为不同失效形式导致数据具有较大的离散性,但这些数据仍然可以作为一个整体进行分析。An investigation was conducted to study the effects of stacking sequence and unidirectional glass fiber relative volume fraction on the interlaminar shear strengths（ ILSS） of laminated composites. The six laminated composites with different stacking sequence follow as：（UF）5,（ UF,CSM,UF,CSM,UF）,（ CSM,UF,CSM,UF,CSM）,（ UF,CSM,CSM,CSM,UF）,（ CSM,UF,UF,CSM,CSM）,（CSM）5,and they were 100%,60%,40%,40%,40%,0%,respectively. Experimental results indicated that the unidirectional glass fiber relative volume fraction has a huge effect on ILSS,and the ILSS of（UF）5reaches 40. 768 MPa and the ILSS of（CSM）5only reaches 15. 867 MPa. On the contrary,the stacking sequence has little influence on ILSS. Meanwhile,the failure modes were studied with a newly mathematical statistics method-＂ The Rank-Sum Test＂,which found that even the ILSS present a larger scatter because of different failure modes in the same type stacking sequence,the sample values can still be analyzed as a entirety.

关 键 词：双切口剪切强度试验法 树脂基复合材料 层间剪切强度 秩和检验法 

分 类 号：TB332[一般工业技术—材料科学与工程]