论文最后分析了理论计算公式，研究和讨论了剪切应力与粒子体积分数、外加磁场强度和粒子的磁化强度的关系。

Finally in this paper the theoretical formula is analyzed, and the effects of the particle volume fraction, particle magnetization and the external magnetic field onthe shear stress are studied.

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运用弹性力学理论，建立石油套管的力学模型，通过有限元计算，得到残余应力与石油套管抗压溃强度之间的关系。

Based upon the elasticity theory, a mechanical model for the casing pipe was built and the relationship between residual stress and compression strength was developed by FEM.

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此结果支持了基于绝对反应速率理论的光纤断裂模型，并预测了裂纹扩张速率与外部应力强度的关系。

This result supports previous fracture models that are based on absolute reaction rate theory and predicts an exponential dependence of crack extension rate on applied stress intensity.

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