溶融亜鉛めっき時における送電鉄塔部材の熱弾塑性損傷解析

概要

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The thermal elasto-plastic behavior of a pylon member in hot-dip galvanization is analyzed by the finite element method in order to predict the occurence of cracking due to zine embrittlement, in which the surrounding zone of a bolt hole is modeled by using axisymmetric solid elements with Bodner-Partom's viscoplastic constitutive equation. Numerical stuides are conducted for the influence of the residual stress due to welding on the cracking near the hole. The analysis is extended to the damage analysis using Bodner-Chan's damage evolution equation. The uncoupled, locally coupled and fully coupled analyses are conducted for the coupling of the damage constitutive equation and the structural analysis. Numerical results show that the locally-coupled analysis is the most efficient and accurate for the present problem.
一般社団法人日本機械学会の論文
1999-04-25