@article{oai:mie-u.repo.nii.ac.jp:00004966, author = {Sittner, Petr and シットネル, ペトロ and Hara, Yasuhiro and 原, 康浩 and Takakura, Masayoshi and 高倉, 正佳 and Tokuda, Masataka and 徳田, 正孝}, journal = {Research reports of the Faculty of Engineering, Mie University}, month = {Dec}, note = {application/pdf, The thermoelastic martensitic transformation/MT/ induced by combination of external forces at constant temperature has been investigated by tension-torsion experiments with hollow bar specimens of Cu-Al-Zn-Mn polycrystalline shape memory alloy /SMA/. The mechanical work stored or released by independent external axial and torque forces has been related with the progress of MT. The reversibility of large inelastic strains and mechanical hysteresis of pseudoelastic material give rise to peculiar mechanical behaviors under general stress conditions, that are experimentaly described here. It is shown, that at least at low stresses, the polycrystalline SMA material can be loaded - unloaded by combination of general forces with precisely defined and well reproducible strain response for hundreds of cycles, provided that axial strains are reversible. The reversible axial strains can be controlled by change of torque force and vice versa due to the coupling among tension and torsion typical for deformation mechanism of thermoelastic MT. There is a tendency of reverse martensitic transformation on unloading to follow the already passed forward transformation pathway, but the effect is rather weak in SMA polycrystal.}, pages = {9--24}, title = {On the General Stress Controlled Thermoelastic Martensitic Transformation}, volume = {19}, year = {1994} }