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The damage introduced by low-velocity impact is a threat to adhesively bonded composite joints. The impact response and tensile behaviors after impact of composite scarf joints was investigated using experimental and finite element analysis techniques. 18 specimens were impacted in three different locations and tensile tests after impact were conducted. The test results demonstrated that when impacted...
Anisotropic thermal contraction, resin chemical shrinkage and tool-part interaction are the key parameters which induce residual stress in composite parts. For V-shaped composite parts, when released from the tool after autoclave processing, the residual stress causes deformation which acts as a decrease of the enclosed angle called spring-in. Spring-in will affect the manufacturing precision and...
Australopithecus africanus is an early hominin (i.e., human relative) believed to exhibit stress‐reducing adaptations in its craniofacial skeleton that may be related to the consumption of resistant food items using its premolar teeth. Finite element analyses simulating molar and premolar biting were used to test the hypothesis that the cranium of A. africanus is structurally more rigid than that...
Therepsilare many kinds of bending test conditions according to different control modes: displacement control, force control and strain control. In our paper, strain-controlled bending test was chosen, since the lifetime and failure modes were more sensitive relating to different loading strain range and strain rate. ANSYS was used to simulate the bending test to predict board level solder joint reliability...
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