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Chapter 23

Transformations of Stress and Strain

平面应力的转换
平面应力的转换
Consider a point on a cube experiencing plane stress, defined by its stress components. If the element rotates by an angle, its stress components change. ...
主应力
主应力
The normal and shearing stress equations of the transformed plane, when graphed, form a circle that demonstrates their relationship for any given angular ...
主应力:解决问题
主应力:解决问题
Two planes that are at right angles carry shearing stress along with tensile and compressive stresses. With known stress values, determine the principal ...
平面应力的莫尔圆
平面应力的莫尔圆
Mohr's circle is a visual representation of stress transformation on an element. The stress components in this element are plotted on a graph to ...
一般压力状态
一般压力状态
The general state of stress refers to the various forces and pressures an object experiences. Consider a tetrahedron with one face perpendicular to a line ...
平面应力下延性材料的屈服标准
平面应力下延性材料的屈服标准
Structural elements and machine parts made from ductile materials are designed to resist yielding under an expected load. The yield point is identified ...
平面应变的变换
平面应变的变换
Consider a long bar subjected to uniformly distributed loads on its sides. In such bars, the transformation of plane strain under a rotation of coordinate ...
用莫尔圆分析平面应变
用莫尔圆分析平面应变
Mohr's circle analyzes plane strain by plotting points with the abscissa equal to the normal strain and the ordinate equal to half the shearing ...
三维应变分析
三维应变分析
Three-dimensional strain analysis uses principal stress axes to evaluate deformation in elastic, homogeneous materials. A small cubic element, when ...
应变测量
应变测量
Strain measures the deformation or displacement in a material. Normal strain is calculated by comparing lengths before and after a load is applied. A more ...
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