CRUSHING BEHAVIOR OF PULTRUDED COMPOSITES
Keywords:
Pultruded composites, crashworthiness, energy absorption, collapse mod, progressive collapseAbstract
An experimental investigation was carried out to study the crashworthiness parameters an behavior of pultruded composite tubes. Quasi-static compressive loadings were applied axially on pultruded coposite to investigate the response of force-displacement during progressive collapses. Three chamfering angles 35", 45" and 55" were selected to study their effect on crushing behaviors and collapse modes. Load-displacement curves and collapse mode of each sample is presented and discussed. The results showed that higher chamfering angle produced higher energy absorption capability. Progressive callapses are 5 mm thick wall composites, while for 3 mm thick wall composites, global buckling occurred on the wall sides after fast unstable crack propagation along the tube corners.References
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