Prediction of Matrix Failure in Fibre Reinforced Polymer Composites

Table 6

Predicted 𝐽_1𝜀 and 𝐽^′_1𝜎 values at critical points under uni-axial and biaxial tension loadings—orientation 2.

		(1) Uni-axial tension	(2) Biaxial tension	Ratio (2)/(1)	Difference
Point 𝑎	𝐽1𝜀	0.0141	0.0334	2.37	1.0%
	𝐽^′1𝜎	1.05𝐸2 MPa	2.44𝐸2 MPa	2.32
Point 𝑏	𝐽1𝜀	0.00978	0.0435	4.44	49.0%
	𝐽^′1𝜎	1.02𝐸2 MPa	3.05𝐸2 MPa	2.98
Max	𝐽1𝜀	0.0141	0.0435	3.09	6.1%
	𝐽^′1𝜎	1.05𝐸2 MPa	3.05𝐸2 MPa	2.90