Abstract
There are various influence factors to ultimate strength of FRPM hydraulic pipes, and the fracture mechanism like the delamination is peculiar to laminated composite materials. In this paper, reproduction analyses of stiffness test results according to JIS A 5350 are tried to examine the load bearing characteristics of the FRPM pipe and the material properties of each layer. Through the process of trying the reproduction of the load-displacement relation, the ultimate strength and the fracture mode, validity of the numerical analysis model and the material properties was confirmed.
