Abstract
The scope of this study is to examine the failure response in an aluminum—glass—epoxy sandwich composite plate with two serial circular holes, which is subjected to a traction force by two serial bolts. To determine the effects of joint geometry and applied/without preload moments on the bearing strength and failure mode, parametric studies were carried out experimentally. The end distance to diameter (E/D) and width to diameter (W/D) ratios in the specimens were designed from 1—5 to 2—5, respectively, whereas the distance between two serial holes and diameter ratio were fixed as 4. Besides, each type of specimen were tested under various applied preload moments as 2, 3, 4, 5 Nm and without preload moments (0 Nm). According to the experimental results, the bearing strength and maximum failure load generally increase by increasing E/D and W/D ratios and of applied preload moments. Besides, failure modes strictly affected these parameters.
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