Closed-cell cross-linked PVC foams display high specific strength and stiffness and are frequently used as core of light-weight sandwich structures, such as inner aircrafts panels. The compressive behavior of a commercially available foam was investigated under both quasi-static and dynamic conditions. In the first case effects of foam anisotropy and strain localization were discussed; an ad-hoc apparatus was also used to obtain micro-tomographic reconstructions. Time-temperature superposition was used in conjunction with dynamic data to feed a finite element numerical model able to predict acoustical damping characteristics of a composite panel made by PVC foam core and aluminum skins.
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