高分子材料の引張り挙動における温度―時間換算について.

The dependences of the elongation speed and temperature on the ultimate tensile properties in polyethylene solids was investigated, in which a double-edge-notched specimen was used to avoid necking. The data on ultimate properties such as the tensile strength and elongation at break for different temperatures were superimposed, by shifts along the elongation speed axis, to give a master curve as a function of the time to rupture. The shift factors obtained from the super-positioning of both the tensile strength and ultimate strain followed the form of the Williams–Landel–Ferry (WLF) equation. On the other hand, the strain rate and temperature dependences of yield behavior followed a kinetic process proposed by Eyring. [ABSTRACT FROM AUTHOR]