The plane stress theory is applied to analyze the contact stress between cast track and roll wheel.

采用平面应力理论来分析滚轮与轨道的接触应力问题。

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Based on the maximal tension stress theory, formulae of maximal tangential stress and critical load are presented.

根据最大拉应力理论，给出了最大切向拉应力和临界载荷公式。

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Calculation methods of crack spread length are investigated by means of stress theory and brittle fracture theory.

本文从强度理论和脆断理论两方面对此情况下裂纹传播长度的计算方法进行探讨。

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Another theory says that the stress of having to pay constant attention to survive leads to Third Man hallucinations.

VOA: special.2010.02.24

One theory blames oxidative stress, caused by the onslaught of nasty molecules known as free radicals.

ECONOMIST: The ageing brain

Ilan Meyer, a senior scholar at UCLA's School of Law, offers an explanation for these disparities through the "Theory of Minority Stress, " which suggests that these health inequities may be rooted in discrimination, with negative health behaviors acting as coping mechanisms for repeated exposure to stigma-related stress.

CNN: Why bias puts young gays' health at risk

Another theory has to do with stress reduction.

CNN: Family counters flesh-eating bacteria with faith