ANSYS中的物理量(如应力、应变及相对位移等)的正负号规定
1、应力向量{σ}的符号规定:拉应力和拉应变为正,压应力和压应变为负;剪应力基本与弹性力学规定相同(正向正向,负向负向)
The stress vector is shown in the figure below. The sign convention(符号规定) for direct stresses and strains used throughout the ANSYS program is that tension is positive and compression is negative. For shears, positive is when the two applicable positive axes rotate toward each other.

1、应力向量{σ}的符号规定:拉应力和拉应变为正,压应力和压应变为负;剪应力基本与弹性力学规定相同(正向正向,负向负向)
The stress vector is shown in the figure below. The sign convention(符号规定) for direct stresses and strains used throughout the ANSYS program is that tension is positive and compression is negative. For shears, positive is when the two applicable positive axes rotate toward each other.
