PS49 ポーラス樹脂材料の三軸圧縮特性評価(フェロー賞対象ポスターセッション)

概要

論文の詳細を見る
Polymer foams are used in a number of applications such as helmets, packaging materials and so on, because they have a good energy absorbing capability. The compressive property of polymer foam is investigated as uniaxial compression tests and there are a lot of results of uniaxial compression tests. However, the stress state is often triaxial, rather than uniaxial compression. The macroscopic behavior of polymer foams shows an elastic region followed by a stress plateau where the stress is nearly constant for a large range of strain. In passive safety applications, the plastic plateau behavior allows the dissipation of the mechanical energy for a nearly constant stress. This study investigates the relationships between stress state and compression behavior of polymer foams.
2010-10-09