4045 AZ31Bマグネシウム合金円筒管の塑性座屈挙動(S19-2 マグネシウム合金の強度,S19 高機能マグネシウム合金の材料強度特性)

概要

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In this paper, buckling tests of cylindrical pipe of AZ31B magnesium alloy are carried out to clarify the effects of test temperature (T=293, 393, 473 and 573K), and wall thickness (t=0.3, 0.5, 1.0, 1.5, 2.0 and 3.0mm) on the buckling behavior. The main experimental results are summarized as follows: (1) The temperature dependence was confirmed such that, in case of t=1.0mm, a dynamic plastic buckling mode appears at T=293K, 473K and 393K, and a progressive plastic buckling mode at 573K. (2) It could be found out that wall thickness (t) influences on the buckling modes. (3) Non-axisymmetric deformation mode tends to shift from triangle to quadrangle and pentagon with decreasing the thickness of pipes.
社団法人日本機械学会の論文
2006-09-15