内圧を受けるポリマ材円管の管壁の不均一変形およびバルジ変形の伝ぱ挙動

概要

論文の詳細を見る
Quasi-static neck and bulge propagations in polymer are studied for the case of circular cylinders subjected to internal pressure. For a J_2-flow theory material a finite element simulation completely characterizes the development of axisymmetric neck and bulge, and their propagation in axial direction. Furthermore neck development and its propagation in circumferential direction are also investigated for the circular cylinder under internal pressure with axially plane strain condition. The simulation results include the internal pressure versus volume change, the shape of bulges and necks, and strain distribution. Parametric studies are also performed to investigate the effect of variables employed to characterize the uniaxial stress-strain relation of polymeric cylinder on bulge and neck propagations.
一般社団法人日本機械学会の論文
1990-01-25