高カアルミニウム合金の引張りおよび圧縮における破壊条件

概要

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To considerate the fracture criterion of metals in the deformation processes to which the hydrostatic pressure or the hydrostatic stress is added, the tensile test and the compression test of high-strength aluminum alloy are carried out under hydrostatic pressure, and the stress and strain histories of the processes are calculated by a elasto-plastic finite element method. The experimental results and the finite element results are used to study the fracture criteria. Different fracture criteria are reviewed for an investigation of the fracture in tension and compression. The comparison of these criteria shows that the Ohyane's criterion is successful in prediction both fracture strains in tension and compression. But the fixed numbers of the equation of criterion in tension are not agreed with that in compression.
一般社団法人日本機械学会の論文
1990-07-25