斜纹碳布缝合织物结构增强铝基复合材料的高温拉伸及断裂行为

吴志勇, 邵徽凡, 蔡长春, 曾敏, 王振军, 王艳丽, 陈雷, 熊博文

Tensile and Fracture Behaviors of Stitched Twill Carbon Fabric Structure Reinforced Aluminum Matrix Composites at Elevated Temperature

WU Zhiyong, SHAO Huifan, CAI Changchun, ZENG Min, WANG Zhenjun, WANG Yanli, CHEN Lei, XIONG Bowen

表2 纤维材料的弹性常数、极限强度及热膨胀系数^[33,39~41]

Table 2 Elastic constants, ultimate strengths, and thermal expansion coefficients of fiber^[33,39-41]

Parameter	Symbol	Value	Unit	Ref.
Axial tensile strength	$X_{t}^{f}$	4400	MPa	[41]
Axial compressive strength	$X_{c}^{f}$	2250	MPa	[33]
Axial shear strength	$S_{12}^{f}$	340	MPa	[33]
Axial elastic modulus	$E_{11}^{f}$	377	GPa	[41]
Axial shear modulus	$G_{12}^{f}$	8.9	GPa	[39]
Axial Poisson's ratio	$ν_{12}^{f}$	0.26		[33]
Axial thermal expansion coefficient	$α_{11}^{f}$	-0.83	10^-6 K^-1	[39]
Transverse tensile strength	$Y_{t}^{f}$	175	MPa	[40]
Transverse compressive strength	$Y_{c}^{f}$	590	MPa	[40]
Transverse shear strength	$S_{23}^{f}$	240	MPa	[40]
Transverse elastic modulus	$E_{22}^{f}$	19	GPa	[39]
Transverse shear modulus	$G_{23}^{f}$	7.3	GPa	[40]
Transverse Poisson's ratio	$ν_{23}^{f}$	0.3		[33]
Transverse thermal expansion coefficient	$α_{22}^{f}$	8.0	10^-6 K^-1	[39]