The mechanical models for bulged casing and expandable body are set up based on elastoplastic finite element theory.

根据弹塑性有限元理论，建立了膨胀套管和膨胀心头的力学模型。

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The mechanical models for bulged casing and expandable body are set up based on elastoplastic finite element theory.

根据弹塑性有限元理论，建立了膨胀套管和膨胀心头的力学模型。

youdao