Abstract

Honeycomb core sandwich panels with the GFRP laminates as skin layer and aramid honeycomb core were employed for this study. The three point bending tests for the sandwich panels as well as the GFRP laminates were carried out at wide ranges of both deflection rate and temperature. The flexural strength for laminates and panel strongly depend on time and temperature. The time-temperature superposition principle holds for the flexural strength of the sandwich panel as well as GFRP laminates. The time-temperature shift factors for both strengths agreed well with each other in the temperature range of which the compressive fracture of GFRP occurred.

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