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。
In view of a collapse accident of the roof-fram, the strength and the stability of a collapsed roof-fram is analysed in detail.
本文针对一起屋架坍塌事故，详尽分析了坍塌屋架的强度及稳定性。
No substrate deformation and collapse, no strength reduction and cracks after welding.
无基材结构变形的影响，无变形及塌陷，焊接后强度减小和龟裂。
The casing strength of collapse resistance is an important index of weighing the performance of casing strength.
套管抗挤强度是衡量套管强度性能的一项重要指标。
Clean collapse Cause of the high cost of materials, spare parts, equipment failure, low efficiency, increase use the Labour strength of the workers.
造成材料、配件费用高，故障多，设备使用效率低，增加了工人的劳动强度。
Progressive collapse method is used to calculate ship ultimate hull girder strength and the combination of surface response method and traditional method is utilized to analyse reliability.
采用渐进崩溃法计算船体总纵极限强度，将响应面法与传统可靠性计算方法相结合来进行船体总纵极限强度可靠性分析。
Based on the strength criterion of the incremental plastic collapse, the inelastic deformation behavior of a ship's hull girder under cyclic bending loads was discussed in detail in this paper.
根据递增塑性破坏的强度准则，详细讨论了循环弯曲载荷下船体梁的非弹性变形性能。
The coal bed has a low mechanical strength and porosity in comparison with the normal oil and gas formation, so it is easy to collapse and easy to be polluted.
煤层与一般油气层相比，机械强度低，孔隙度低，所以易坍塌、易污染。
Furthermore, a large reserve of strength is present between the initial yielding and the collapse of the structure.
此外，储量大的力量之间的初始收益率和目前的结构崩溃。
The influence of cement on strength and collapse of loss was simply studied in this paper, Loess-cement is endowed with theory of "water-harden" physical -chemical reaction.
本文简略地分析了水泥对黄土强度及湿陷灾害的影响，提出水泥黄土具有“水硬性”物理化学反应的理论。
Strength: Valukus may prove a one-hit wonder, but his 2,200 page report on the collapse of Lehman Brothers has already gone platinum.
优势：沃鲁卡斯或许只会昙花一现，但他2,200页的雷曼破产调查报告已经名垂青史。
Considering the requirements of riser strength, system collapse, propagated buckling and limitation of floating, the smallest thickness that meets the requirements is determined.
综合考虑规范对立管强度的要求，防止发生压溃和屈曲扩展的要求及限制立管发生漂浮的要求三个条件，确定了满足条件的最小壁厚。
With the help of plastic hinge theory and collapse theory, the formulas for calculating strength failure load and the method for computing collapse load were established respectively.
分别利用塑性铰理论和压溃理讨论了强度计算问题，提出了强度承载能力计算公式和压溃荷载计算方法。
The strength properties and initial collapse conditions of locss;
浸水强度与湿陷初始条件；
The strength of the junction may be limited by plastic collapse of the junction or by elastic or plastic buckling of the ring.
转折连接的主要破坏模式包括塑性破坏及环梁的弹性或塑性屈曲。
By ultimate strength analysis at various conditions, the collapse of platform is caused by breakage of pile leg. And the brace breakage can also decrease the strength of the platform.
经过对平台不同情况下的承载力分析，发现平台的倒塌破坏均为平台桩腿破坏，同时撑杆的破坏也会降低平台的强度储备。
The special mechanical properties of the soft layer has low strength, weak resistance to weathering, soften by water and collapse after losing water.
长沙地区红砂岩层以软硬岩交互沉积而成，其软岩具有强度低、抗风化能力差、遇水软化和失水崩解等特殊力学性质。
The special mechanical properties of the soft layer has low strength, weak resistance to weathering, soften by water and collapse after losing water.
长沙地区红砂岩层以软硬岩交互沉积而成，其软岩具有强度低、抗风化能力差、遇水软化和失水崩解等特殊力学性质。
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