Abstract
The performances of connectors for burn-in tests made of various glass fibre/liquid crystalline polyester composites were analysed using mechanical testing and finite element analyses. Three different composites (E6006L, E6007LHF, and E6808UHF) were evaluated, containing one of two fibre types (chopped or milled) at different contents by weight. Material characterisations of the composites were accomplished by static tensile and fatigue testing under three temperature conditions (23 °C, 160 °C, and 220 °C). The tensile strength, failure strain, and S–N curves of the materials were identified and applied in finite element analyses of the connector structure. The structural integrity of each connector subjected to cyclic high temperature condition was then evaluated using stress and fatigue analyses, and the fatigue life was calculated according to material. Finally, the 40 wt% milled glass fibre/liquid crystalline polyester composite was identified as the most appropriate material for the burn-in test board connector structure.
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