含不同类型分层缺陷层合板的屈曲失效性能  

BUCKLING PROPERTIES OF COMPOSITE LAMINATES WITH DIFFERENT DELAMINATION DEFECTS

作　　者：赵晨熙 朱和明[1,2] 张文兴 ZHAO Chen-xi;ZHU He-ming;ZHANG Wen-xing(State Key Laboratory of Shale Oil and Gas Enriehment Meehanisms and Effeetive Development, Beijing 100101, China;SINOPEC Research Institute of Petroleum Engineering, Beijing 100101, China;School of Meehanieal Engineering, University of Seienee and Technology of The Inner Mongol, Baotou 014010, China)

机构地区：[1]页岩油气富集机理与有效开发国家重点实验室,北京100101 [2]中国石化石油工程技术研究院,北京100101 [3]内蒙古科技大学机械工程学院,包头014010

出　　处：《玻璃钢／复合材料》2018年第6期16-21,共6页Fiber Reinforced Plastics/Composites

基　　金：国家科技重大专项"海上复杂地层安全快速钻完井关键技术"(2016ZX05033004-002)

摘　　要：对含分层缺陷的层合板材料在压缩载荷下进行分层屈曲试验,研究中央分层及边缘分层两种缺陷下的屈曲失效模式,同时结合厚度、分层深度、位置等因素,对两种分层类型进行综合对比分析。结合有限元方法,运用界面元研究了层间的分层缺陷的损伤行为,有限元模拟得到了与实验吻合度较好的数值结果,并进一步研究了分层尺寸及试样尺寸效应的影响。Laminates containing delamination were stratified buckling under compression test to study failure modes. In this paper,the buckling failure of both center and edge delamination were tested. Combined with the defected layer position,symmetrical and unsymmetrical delaminated laminate of the two types were compared. On the other hand,the damage behavior of interlayer delamination defects with the cohesive element,and a better agreement with the experimental value of the results were obtained. Further study was done to investigate the effects of delamination size and sample size.

关 键 词：边缘分层 中央分层 屈曲模式 屈曲后强度 

分 类 号：TB332[一般工业技术—材料科学与工程]