主应力轴(principal stress axes)根据受力物体内任意一点的应力状态,都可取一个直角坐标系(x、y、z),使三个坐标轴分别与互相垂直的三个主应力方向重合,这三个轴就叫作主应力轴。
... principal axis of strain ==> 应变主轴 principal axis of stress ==> 主应力轴,应力主轴 principal axis of stress tensor ==> 应力张量主轴 ...
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... principal axes 主轴系 axes of principal stresses 主应力轴 centroidal principal axes of inertia 重心诌性轴 ...
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... principal axes of stress 应力轴 principal axes of stresses 主应力轴 principal body axes 景体坐标系; 主体坐标系 ...
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震前主应力轴的旋转。
主应力轴正向旋转较逆向旋转产生的孔压小;
The pore water pressure under positive rotation of principal stress axes is smaller than that under inverse rotation.
以此为基础,结合空心圆柱仪的加载特点,给出了室内模拟主应力轴旋转的加载方法。
On the base of loading properties of hollow cylinder apparatus, loading method to simulating the principal stress axes rotation in laboratory tests is given.
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