... 应力分量：stress component 应力二次曲面：quadric of stress 应力多边形：stress polygon ...
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quadric c of stress 应力二次曲面
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A set of inequality constraint conditions of the strength parameters is derived from the convexity of the strength criterion, which is expressed in a quadric form in terms of stress components.
本文从一般强度理论出发导出各向异性材料应力形式张量多项式强度理论，根据强度准则的外凸性得到应力二次形式强度准则的强度参数限制条件。
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