Evaluation of in-plane shear test methods for composite material laminates  

作　　者：王言磊 

机构地区：[1]School of Civil Engineering,Harbin Institute of Technology

出　　处：《Journal of Chongqing University》2007年第3期221-226,共6页重庆大学学报（英文版）

基　　金：the Natural Science Foundation of China (No.50308008);Western Transportation Science and Technology Foundation of China (No.200431882021).

摘　　要：In-plane shear properties of composite material laminates are very important in structural design of composite material. Four commonly used in-plane shear test methods were introduced in this paper. In order to study the differences of various shear test methods, two ASTM standard in-plane shear test methods for composite material laminates were experimentally investigated. They are ±45° tensile shear test (ASTM D3518) and V-notched rail shear test (ASTM D7078). Five types of composite material laminates composed of E-glass fiber fabric and vinyl ester resin were utilized, whose stacking sequences are 03s, 0/903s, CSM/0/902s, ±453s and (0/90)2/(±45)2/(0/90)2s, respectively. The test results indicate that the ±45° tensile shear test can predict shear moduli of composite material laminates accurately. However, the predictions of shear strength using ±45° tensile shear test are significantly lower than those of V-notched rail shear test.In-plane shear properties of composite material laminates are very important in structural design of composite material. Four commonly used in-plane shear test methods were introduced in this paper. In order to study the differences of various shear test methods, two ASTM standard in-plane shear test methods for composite material laminates were experimentally investigated. They are ±45° tensile shear test （ASTM D3518） and V-notched rail shear test （ASTM D7078）. Five types of composite material laminates composed of E-glass fiber fabric and vinyl ester resin were utilized, whose stacking sequences are [0]3s, [0/90]3s, [CSM/0/90]2s, [±45]3s and [（0/90）2/（±45）2/（0/90）2]s, respectively. The test results indicate that the ±45° tensile shear test can predict shear moduli of composite material laminates accurately. However, the predictions of shear strength using ±45° tensile shear test are significantly lower than those of V-notched rail shear test.

关 键 词：in-plane shear test ±45° tensile shear test V-notched rail shear test comoosite material laminate 

分 类 号：TB302.3[一般工业技术—材料科学与工程]