1718 形状記憶合金の三相間再配列へのPREISACHモデルの適用(J08-5 材料・構造,デバイス(1),J08 知的材料・構造システム)

概要

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The Preisach model is applied to hysteresis of required energy for reorientations of martensitic variants of shape memory alloys. To express tension-compression asymmetric behavior, three variants are considered, which are the thermal induced, the tensile stress induced, and the compressive stress induced martensitic variants. Residual stresses due to unconformity at interfaces between grains are also considered into the energy. Stress-strain hysteresis loops for a bar under tension-compression cyclic loading are simulated and they are compared with available measured data. Results show that this model can capture asymmetric stress-strain deformation behavior for tension and compression and difference in stress-strain relationship between the first and the second cycle quite well.
一般社団法人日本機械学会の論文
2005-09-18