Mechanical characteristic of ct is studied. The model of bending, internal pressure strength and external collapse strength, diametric growth and stuck-point of ct is established.
Then the improved model is used to calculate the final casing collapse strength. This method combines FEA and strain test together and thus can get more …
3
计算表明,在非均布外挤压力作用下,套管抗挤毁强度大大降低。
Calculation shows that the casing collapse resistance decreases greatly under nonuniform loads.