717 多軸応力下における発泡樹脂材料の構成式(GS-3 変形挙動,研究発表講演)

概要

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Foam resin is useful for building components and articles of vehicle since it has the superior thermal insulation performance and striking energy absorption. The mechanical property of the foam resin is, however, not sufficiently investigated. In our previous research, Oyane-Shima's constitutive equation was assumed to be applicable to foam resin. However, the deformation behaviors of foam resin with different initial density are not the same even when the current density of foam resin are equal. Such behaviors can not described by Oyane-Shima's original equation. In the present research, the uni-axial compressive behavior of foam resin is focused on, and, the effect of the initial density of the resin on flow stresses was discussed. Finally, a new constitutive equation when the effect of the initial density taken into account was proposed.
社団法人日本機械学会の論文
2005-03-18