[PERFORM-3D] A discussion of two methods of conducting low-frequency cyclic test modeling in PERFORM-3D [关于PERFORM-3D中低周往复试验模拟的两种方法的探讨]

A discussion of two methods of conducting low-frequency cyclic test modeling in PERFORM-3D。关于PERFORM-3D中低周往复试验模拟的两种方法的探讨。