Static tensile strength and fatigue behavior of polyester reinforced with the chopped strand mat (CSM) offiber glassat elevated temperature


In the work present, describes an attempt has been made to study the effect of temperature on fatigue behavior of polyester reinforced with woven of fiber glass manufactured as a laminate [CSM]3.Fatigue tests were carried out at constant stress amplitude at different temperature environment. All fatigue tests were employed at stress ratio R=-1 and under constant fiber volume fraction (VF) of 33%. The results indicated that the tensile and the fatigue strength decreased with increasing temperature up to at 60 0C.The fatigue life reduction factor (FLRF) at 60 oC was in range (41%-61%) in range of applied stresses amplitude between (80-100MPa) compared at (RT).