玻璃钢/复合材料Issue(5)：41-47,7.
基于材料物性参数时变特性的复合材料层合板固化残余应变应力数值模拟
NUMERICAL SIMULATION OF CURING RESIDUAL STRESS AND STRAIN OF COMPOSITE LAMINATES WITH TIME-DEPENDENT PHYSICAL PARAMETERS OF MATERIALS
摘要
Abstract
Residual stress formed during the curing process of thermoset resin composites is an important factor affecting the quality of material.A three-dimensional model based on the time-dependent physical parameters of materials during the curing process of composites was established.It contains thermal-chemical,resin curing kinetic model,and the residual stress model.On the basis,the time-dependent properties of material performances during the curing process were introduced into multi-field coupled calculation model.According to the comparison with experiment data in reference,the reliability of the model was verified.Then,the curing residual stress and strain of composite laminates were numerically simulated,the change rule of the curing residual stress and strain of composite laminates was studied,and the effect of process parameters on the stress and strain was analyzed.Through the comparison with the strain of pre-preg test,the correctness was verified.And the results show that the model can simulate composite curing process.Temperature,volume fraction of resin,and ply angle have significant impact on laminates stress and strain,and the affect of volume fraction of the resin is the most significant among these factors.关键词
复合材料/残余应变/应力/多场耦合/物性参数/光纤光栅实验Key words
composites/residual strain/stress/multi field coupling/physical property parameter/pre-preg分类
通用工业技术引用本文复制引用
贺继林,蒙元明,王特,王小飞..基于材料物性参数时变特性的复合材料层合板固化残余应变应力数值模拟[J].玻璃钢/复合材料,2017,(5):41-47,7.基金项目
国家“973”项目(2014CB046500) （2014CB046500）
