点击次数：

论文类型：期刊论文

发表时间：2017-10-15

发表刊物：JOURNAL OF ADHESION

收录刊物：SCIE、EI、Scopus

卷号：93

期号：12

页面范围：993-1007

ISSN号：0021-8464

关键字：Automotive; bulk adhesive; creep strain; epoxy; stress analysis; temperature

摘要：The aim of this research was to develop an experimental-numerical approach to characterize the effect of constant loading coupled with elevated temperature on epoxy bulk adhesive and to predict the stress degradation of bulk adhesive specimen under 15% and 25% tensile failure loads for the automotive industry. A power-law creep model was built to simulate the effect of temperature and loading on adhesive mechanical behavior, and the related strength degradation simulation has also been implemented using a creep strain-dependent ductile damage model. Experiments were conducted on bulk adhesive specimens under constant temperature coupled with mechanical load, and the corresponding experimental results provided creep parameters for the simulation procedure as well as effective validation with the numerical results in this study. The results obtained from experiments and numerical simulations were also in good agreement.