土的平面应变是岩土工程中常见的状态，其中零应变方向的主应力是十分复杂的。
Plane strain state is familiar in geotechnical engineering, and estimating the principal stress in the plane strain state is very complicated.
目前在相似材料模拟试验中，常采用平面应力模型与平面应变模型两种受力状态。
At present, two stress states — the planar stress and the planar strain are usually adopted in the modeling experiment of the equivalent materials.
并发现在平面应力状态下，梁的梯度效应略强于平面应变状态。
Results also show that the scale effect in plane stress state is slightly stronger than that in plane strain state.
现有井壁围岩应力求解模型大都基于平面应变假设，相对岩石真实应力状态会有一定的误差。
Most of the existing models for borehole wall stress are based on plane strain hypothesis. So some errors may be generated as compared with the real stress state of rock.
在平面应变压缩条件下，砂土在峰值应力状态附近出现应变局部化现象，在残余状态最终形成一条V型剪切带。
Under plane strain condition, the strain localization starts around the peak stress state; and a V-shaped shear band is formed at the residual stress state.
在平面应变压缩条件下，砂土在峰值应力状态附近出现应变局部化现象，在残余状态最终形成一条V型剪切带。
Under plane strain condition, the strain localization starts around the peak stress state; and a V-shaped shear band is formed at the residual stress state.
应用推荐