A Macro-Meso Correlation Model for Numerical Simulation of CFRP Tensile Notched Strength

Table 3

Material properties’ symbols and values of U3160/5284 layer.

Modulus	Symbol/unit	Value
Longitudinal elastic modulus	E1/MPa	116320
Transverse elastic modulus	E2, E3/MPa	8400
In-plane shear modulus	G12, G13/MPa	4570
Out-plane shear modulus	G23/MPa	3075
In-plane Poisson ratio		0.15
Out-plane Poisson ratio		0.30
Mass density		1.6E − 06
Fiber longitudinal modulus	E1f/MPa	239000
Fiber in-plane shear modulus		0.2
Strength	Symbol/unit	Value
Longitudinal tension strength	XT/MPa	1413
Longitudinal compression strength	XC/MPa	993
Transverse tension strength	YT, ZT/MPa	43
Transverse compression strength	YC, ZC/MPa	184
In-plane shear strength	S12, S13/MPa	172
Out-plane shear strength	S23/MPa	102
Fracture toughness	Symbol/Unit	Value
Model-I critical energy release rate	GIC/N (mm)^−1	0.52
Model-II critical energy release rate	GIIC/N (mm)^−1	0.92
Model-III critical energy release rate	GIIIC/N (mm)^−1	0.92
Interface	Symbol/unit	Value
Normal stiffness	KN/MPa (mm)^−1	120000
Shear stiffness	KS, KT/MPa (mm)^−1	43000
Normal strength	RN/MPa	43
Shear strength	RS, RT/MPa	60