复合材料织物层合板挖补修理软件实现与试验验证

发布时间：2018-01-23 00:47

本文关键词： 复合材料层合板解析模型软件失效载荷试验　出处：《复合材料学报》2017年07期 　论文类型：期刊论文

【摘要】：针对单向拉伸载荷作用下复合材料织物层合板胶接挖补修理结构,改进现有解析模型,建立适用于无附加层、附加1层和附加2层结构的阶梯型挖补修理结构和斜切型挖补修理结构的解析分析模型。给出求解算法,定义准确度用于评价数值计算精度,最终实现开发一套界面友好的复合材料胶接挖补修理设计与分析软件。该软件可以求解单向拉伸载荷作用下,复合材料胶接修理结构内部的剪应力场/剪应变场分布,评价搭接板受载情况,并预测结构失效载荷与失效模式。研究中采用T300/CYCOM-970织物作为母板与补片材料,METLBOND1515-4M作为胶层材料,设计进行了一系列阶梯型及斜切型挖补修理验证试验。试件失效载荷与软件计算结果吻合良好,阶梯型最大相差5.7%,斜切型最大相差14.0%。该软件可以对复合材料织物层合板胶接挖补修理进行高效、准确的初步辅助设计与分析。
[Abstract]:In order to repair the composite fabric laminates under uniaxial tensile load, the existing analytical model is improved and applied to the non-additional layer. The analytical analysis model of step repair structure and oblique repair structure with 1 layer and 2 layer structure is presented. The solution algorithm is given and the accuracy is defined to evaluate the accuracy of numerical calculation. Finally, a set of interface friendly composite bonding repair design and analysis software can be developed, which can solve the uniaxial tensile load. The distribution of shear stress field and shear strain field in composite bonded repair structure was studied to evaluate the loading of lap plate. The T300 / CYCOM-970 fabric was used as the matrix and patch material METLBOND1515-4M as the rubber layer material. A series of step and oblique repair tests were carried out. The failure load of the specimen is in good agreement with the calculated results of the software, and the maximum difference of the ladder type is 5.7%. The maximum difference between oblique and tangent type is 14.0. The software can be used for efficient and accurate preliminary design and analysis of composite fabric laminated plywood repair.
【作者单位】：西北工业大学航天学院;
【基金】：国家自然科学基金(U1233202)
【分类号】：TB33;TS106
【正文快照】： 网络出版地址:www.cnki.net/kcms/detail/11.1801.TB.20161024.0833.004.html引用格式:谢宗蕻,王绥安,李想.复合材料织物层合板挖补修理软件实现与试验验证[J].复合材料学报,2017,34(7):1451-1461.XIE Zonghong,WANG Suian,LI Xiang.Composite fabric laminate scarf repair a

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