Abstract
An analysis procedure is presented for determining the maximum allowable beam pressure for a composite angle clip in a beam-clip structural configuration. A quasi-isotropic laminate was used in this type. Three layups, (45 10, 0 10, −45 10, 90 10) s, (45, 0, −45, 90) 10s and (45 10, 90 10, −45 10, 0 10) s were used to study the effect of delamination and first ply failure strength. It is found that without any ply failure the (45, 0, −45, 90) 10s clip can sustain the highest beam pressure and the (45 10, 90 10, −45 10, 0 10) s has the lowest allowable pressure among the three laminates. A critical location is identified in the composited angle clip. A modified Pagano-Pipes approximation method is used to evaluate the interlaminar normal stress at the critical location through the laminate thickness for all the three layups. It is found that the (45, 0, −45, 90) 10s is the least susceptible to delamination.
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