Exert hot stress and external force (such as border terms) that temperature cause as the strength load the object and then, try to get total deformation amount.
再将温度引起的热应力和外力(如边界条件)之和作为力载荷施加到物体，求得总变形量。
Reliable connectivity: PE pipe hot melt or fused interface strength is higher than the pipe body, joints will not load due to soil movement or the role of living off.
可靠的连接性能：PE管热熔或电熔接口的强度高于管材本体，接缝不会由于土壤移动或活载荷的作用断开。
Reliable connectivity: PE pipe hot melt or fused interface strength is higher than the pipe body, joints will not load due to soil movement or the role of living off.
可靠的连接性能：PE管热熔或电熔接口的强度高于管材本体，接缝不会由于土壤移动或活载荷的作用断开。
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