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In this work, polyethylene terephthalate waste products were recycled in the form of a molten polymer then mixed with silica sand particles in different weight ratios (5–40% of sand particles with 0.062–0.35mm in diameter) in the form of particulate composites. Compression and three point bending tests were carried out on the composites at temperatures of −20, 25, 40, 60 and 80°C. In addition, to...
Free vibration analysis and eigenvalues sensitivity analysis of composite laminates with interfacial imperfection are investigated based on the radial point interpolation method (RPIM) in Hamilton system. The governing equation of the free vibration analysis and eigenvalues sensitivity analysis are both reduced by the spring-layer model and modified Hellinger–Reissner (H–R) variational principle....
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