FRP円筒の非軸方向におけるエネルギー吸収特性

概要

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FRP tubes exhibit high energy absorption performances under axial compressive loads. In practical usage as energy absorption components in the automotive industry, application of the composite tube to bumper beams of automobiles is considered. Thus, it is important to determine what happens when a collision occurs in the off-axial direction of the tube. In this study, impacts tests were carried out to estimate the energy absorption capabilities in the off-axial directions of the composite tube, static and impact tests were carried out. As the inclination of the tube increase, specific energy absorption value decreases. By observating aspects of cross sections of the crushed tube, it was clear that a few kinds of fracture modes were generated in the circumference of the tube. Moreover, an attempt to quantitatively evaluate energy absorption mechanism on the basis of each fracture mode was made.
一般社団法人日本機械学会の論文
1998-03-25