Abstract
GLARE laminates were prepared in this work to characterize their interlaminar shear failure behavior by Double Beam Shear (DBS) method. The effect of span-to-thickness ratio (L/h ratio) and lay-up configuration on the interlaminar failure feature of the laminates was investigated respectively. The results indicated that the failure mode in DBS method was single interlaminar shear delamination due to the existence of pure shear stress points. Furthermore, the apparent interlaminar shear strength (ILSS) values measured by DBS method were higher than those of Short-beam Shear (SBS) method, which were closer to the true value. However, the two methods did not show exclusiveness.
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