Tensile Strength Determination for Woven Glass/Epoxy Composite Laminates at Cryogenic Temperatures Using the Open Hole Specimens

摘要：

We study numerically and experimentally the tensile strength properties of woven glass fiber reinforced polymer (GFRP) composite laminates at cryogenic temperatures using the open hole specimens. Tensile tests were carried out on specimens with a circular hole at room temperature, liquid nitrogen temperature (77 K) and liquid helium temperature (4 K). The length of the hole edge damage zone corresponding to the specimen failure was then determined by the microscopic examinations of the fracture surfaces. A method based on finite element analysis was also developed for estimating the cryogenic tensile strength of the unnotched woven laminates by the use of experimentally determined failure load and damage zone length. It is shown that the tensile strength of woven composite laminates at cryogenic temperatures can be determined effectively by this approach.

关键词： Cryomechanics Finite Element Method Tension Test Polymer-Matrix Composites Strength Cryogenic Devices

作者: Yasuhide Shindo Shinya Watanabe Tomo Takeda Fumio Narita Takuya Matsuda Satoru Yamaki

作者单位: Department of Materials Processing, Graduate School of Engineering, Tohoku University,Aoba-yama 6-6-02, Senaai 980-8579, Japan

会议类型: 国际会议

会议名称: The Ninth China-Japan Joint Conference on Composite Materials(第九届中日复合材料学术会议 CJJCC-9)

会议地点: 呼和浩特

会议语种:英文

页码: 67-70

在线出版日期: 2010-09-01（万方平台首次上网日期，不代表论文的发表时间）