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 …
该方法将有限元计算与应变检测结合起来，大大提高了有限元计算的精度，对预测套管的挤毁压力、指导高抗挤套管的开发具有一定的参考价值。
With the improvement of the production and manufacture technology of casing, the actual collapse strength of casing cannot be accurately calculated by present API 5C3 formula.
随着套管制造工艺水平的不断提高和制造质量的显著改进，现有的API5C3公式已不能正确的预测套管实际抗挤抗内压强度。
With finite element method, the collapse strength of casing with ovality and eccentricity under unidirectional uniform and ellipse distributive force was calculated and analyzed.
采用有限元法，计算和分析了壁厚不均与椭圆套管在单向均匀和单向椭圆分布外挤力作用下的强度问题。
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.
研究了连续油管的工作力学特性，建立了连续油管弯曲、抗内压强度和外部挤毁压力、直径增长、纵向伸长及卡点位置分析计算模型。
It is also found that the collapse strength of the even wear model was different from that of the uneven wear one. A quite great error would happen if a wrong model has been used.
同时指出，在计算套管的抗挤毁强度时，用均匀磨损模型代替非均匀磨损模型，计算结果有较大误差。
The proposal model of the high collapse strength in this paper can't only provide the given reference for the present high collapse strength, but also improve the casing manufacturing quality.
本文给出的高抗挤套管抗挤强度计算的建议模型，不仅可提供现行高抗挤套管抗挤强度的额定参考值，而且帮助厂家改进高抗挤套管质量。
The proposal model of the high collapse strength in this paper can't only provide the given reference for the present high collapse strength, but also improve the casing manufacturing quality.
本文给出的高抗挤套管抗挤强度计算的建议模型，不仅可提供现行高抗挤套管抗挤强度的额定参考值，而且帮助厂家改进高抗挤套管质量。
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