On the evaluation of failure strain in graphite-epoxy composites

被引：0
|
作者：
Marin, J. C. [1 ]
Justo, J. [1 ]
机构：
[1] Univ Seville, Escuela Tecn Super Ingn, Grp Elast & Resistencia Mat, Seville, Spain
来源：
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES | 2024年 / 31卷 / 25期
关键词：
Composites; characterization; failure stress; failure strain; off-axis tensile test; shear behavior; OFF-AXIS TENSION; INPLANE SHEAR-STRENGTH; FATIGUE BEHAVIOR; PREDICTION; CRITERIA; DESIGN; G-12;
D O I：
10.1080/15376494.2023.2245397
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Determination of failure strains is a topic of great interest for the design of composite structures. To evaluate the ultimate strains of a composite, tensile tests have been carried out on specimens with a range of fiber orientations between 0 & DEG; and 90 & DEG;. Ultimate tensile strengths obtained present low or moderate dispersion, the average values constituting a good estimation of the failure stress. Values of failure strains obtained present high dispersion for almost all orientations, so it is proposed to take as failure strain threshold the minimum value for each orientation. Finally, the shear behavior of the material has been evaluated.
引用
收藏
页码：7404 / 7419
页数：16
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