平織ガラス繊維強化積層板の非線型挙動

抄録

This paper presents a method of predicting the nonlinear stress-strain curves up to the tensile failure for plain woven glass fiber cloth reinforced polyester laminates, when the load direction does not coincide with the fiber direction. The application of the laminate plate theory to the small stress increments of the stress-strain curve was done in the proposed analytical procedure.
Comparisons were made between the analytical prediction and the experimental results for plain woven and nonwoven glass fiber reinforced laminates. As the results, the calculated stress-strain curves were found to be in considerably good agreement with the experimental results and the nonwoven laminate had higher strength and rigidity than the plain woven laminate for those with low fiber orientation angles, but had lower strength and rigidity for those with high fiber orientation angles.