Metal flow takes place within the plastic range of the metal, so that the bend retains a permanent set after removal of the applied stress.
金属的流动发生在金属的塑性变形范围之内，因此在施加的外力去除之后弯曲保持永久的变形。
Some part of the casing reaches plastic range in the combined load state and the casing may be cracked under 1.5 times of the combined load.
在组合载荷下机匣局部出现塑性，在1.5倍组合载荷作用下机匣可能发生破坏。
Some part of the casing reaches plastic range in the combined load state and the casing may be cracked under 1.5 times of the combined load.
在组合载荷下机匣局部出现塑性，在1.5倍组合载荷作用下机匣可能发生破坏。
应用推荐