In calculation, adopted load-unload criterion of stress wave propagation was to decide load-unload state of element and to adjusts and transfers internal stress for tensile failure element as well.
Direct tensile, acceleration, and shock wave tests belong to the tensile test group, whereas adhesive tape, direct shear, peel and scratch tests belong to the shear test group.
直接拉离、加速和冲击波等方法属于拉力法,而胶带、直接剪切、剥离和划痕等方法属于剪切法。
3
A percussion device (7) gives impact pulses to a waveguide (21), where a compression stress wave and a reflected tensile stress wave are generated, which propagate in the waveguide.