This paper describes the experiments and theoretical analysis for elasticplastic thermo-softening of three alloy specimens subjected to rapid resistance heating while being hold to constant uniaxial tensile load.

Study was made of the experimental and theoretical analyses for inelastic thermo-softening of H62 copper and LY12 aluminum specimens subjected to rapid resistance heating by a large electric current and under constant uniaxial tensile load.

A modified thermo-softening equation of Kuernakov is put forward.

Assuming that localized instability occurs when the current rate of strain and strain rate hardening is balanced by the rate of geometric and thermal softening,a simplified treatment of the plastic instability is presented and used as a criterion for the rough prediction of material failure under high strain rate stretching.

The influence of the hemicellulose-lignin matrix of the cell wall of eight rattan species on the thermal softening of cane was evaluated using the creep compliance test.

When the moisture content of soil is more than 18 %, the shear strength of soil decreases with the increasing temperature, showing the thermal softening on strength; When the moisture content is less than 18 % and dry density is 1.