This study investigates the structural performance of polymer matrix composite infills (PMC
infills) under diagonal compression load by means of numerical analysis with consideration of three
important parameters. The three parameters considered in this study are variation of temperature, length
of contact, and type of support at the connection between infill and frames. These three parameters can
greatly affect the performance of the infill panel. Results shown that the strength of PMC panels decreases
as the temperature increases, this is due to the polymeric behaviour of fiber-reinforced polymer in the panel.
Moreover, when the contact length increases, the strength of panel shows a converging trend. This result
could assist in the decision of support type for the FE model.
Keyword-Compressive resistance; GFRP; Temperature dependent