Transactions of Materials and Heat Treatment

Title：Analysis on forming performance of semi-cured GLARE laminate based on uniaxial tensile

Authors： Li Lei Lang Lihui Xuan Yongbo Wang Hongfeng

Unit： Beihang University Unit 93236 People′s Liberation Army Unit 93175 People′s Liberation Army

KeyWords： fiber metal laminate GLARE laminate tensile properties formability semi-curing

ClassificationCode：TG306

year,vol(issue):pagenumber：2021,46(2):200-205

Abstract：

The GLARE laminate was prepared by the semi-curing process to improve its formability, and then it is cured after forming to meet the requirements in service. In order to understand the formability of GLARE laminate prepared by the semi-curing process, the mechanical properties of GLARE2 and GLARE3 laminates with different layer thicknesses were tested by the uniaxial tensile test method. The test results show that the tensile curve of semi-cured laminate still conforms to the bilinear characteristics of traditional laminate, and the formability of GLARE2 laminate prepared by the semi-curing process is less improved than that of the cured GLARE2 laminate. On the contrary, the formability of GLARE3 laminate is significantly improved, and the semi-curing process effectively reduces the yield strength, increases the elongation, and reduces the forming resistance. In particular, the GLARE3-3/2 laminate has relatively high formability with the yield strength of 153.0 MPa, the tensile strength of 301.7 MPa and the elongation of 5.9%. Thus, the semi-curing preparation process effectively improves the formability of GLARE laminate and realizes the forming of parts with large curvature.

Funds：

国家自然科学基金资助项目(51675029)

李磊（1985-），男，博士研究生，工程师，E-mail：blue-view@163.com；通讯作者：郎利辉（1970-），男，博士，教授，E-mail：lang@buaa.edu.cn

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