ABAQUS后处理中各应力解释个人收集

ABAQUS中的壳单元S33代表的是壳单元法线方向应力，S11 S22 代表壳单元面内的应力。因为壳单元的使用范围是“沿厚度方向应力为0”，也即沿着法相方向应力为0，且满足几何条件才能使用壳单元，所以所有壳单元的仿真结果应力查看到的S33应力均为0。

S11 S22 S33 实体单元是代表X Y Z三个方向应力，但壳单元不是，另外壳单元只有S12，没有S13，S23。

LE----真应变（或对数应变） LEij---真应变 ... 应变分量；

PE---塑性应变分量；

PEEQ---等效塑性应变

ABAQUS Field Output Stresses

S stress components and invariants 应力分量和变量 SVAVG volume-averaged stress components and invariants (Eulerian only) MISESMAX 最大 Mises 应力 TSHR transverse shear stress(for thick shells)横向剪切应力 CTSHR transverse shear stress in stacked continuum shells 连续堆垛壳横向剪切应力 TRIAX stress triaxiality 应力三轴度 VS stress in the elastic-viscous network 弹粘性网格应力PS stress in the plastic-viscous network 塑粘性网格应力 SFABRIC stress components in fabric constitutive measure 纤维本构应力分量 SSAVG average shell section stress 平均壳节点应力

Strain

E total strain components 总应变分量 VE viscous strain in the elastic-viscous network 黏性应变弹黏性网格PE plastic strain components 塑性应变分量 PEVAVG volume-averaged plastic strain components (Eulerian only) VEEQ equivalent viscous

strain in the elastic-viscous network PEEQ equivalent plastic strain PEEQVAVG volume-averaged viscous strain components (Eulerian only) PEEQT equivalent plastic strain(tension: cast iron and concrete) 等效塑性应变 PEEQMAX maximum equivalent plastic strain 最大等效塑性应变PEMAG plastic strain magnitude 塑性应变 PEQC equivalent plastic strain at multiple yield surfaces 多屈服面等效塑性应变 NE normal strain components 垂直塑性应变 LE logarithmic strain components 对数应变SE mechanical strains and curvatures 机械应变和曲率DAMAGEC compressive damage 压缩破坏 DAMAGET t ensile damage 拉伸破坏 DAMAGEFT fiber compressive damage 纤维压缩破坏 DAMAGAMT matrix tensile damage 复合拉伸破坏 DAMAGAMC matrix compressive damage 复合压缩破坏 DAMAGESHR shear damage 剪切破坏 SDEG scalar stiffness degradation 尺寸刚度梯度 EFABRIC total strain components in fabric constitutive measure 纤维本构总应变

Force/Reactions RF reaction forces and moments 反应力和力矩 RT reaction forces 反应力

RM reaction moments 反应力矩 CF concentrated forces and moments 集中力和力矩 SF section forces and moments 节点力和力矩 NFORC nodal forces due to element stress 结力-单元应力 RBFOR force in rebar BF body forces 体力 GRAV uniformly distributed gravity loads 统一分布重力加载 P pressure loads 压力加载 HP Hydrostatic pressure loads 静水压力加载 TRSHR shear traction vector 剪切牵引载体 TRNOR normal component of traction vector 牵引载体垂直分量 VP viscous pressure loads 黏性压力载荷 STAGP stagnation pressure loads 停滞压力载荷 SBF stagnation body forces 停滞体力

1、??弹塑性分析中并不一定总要考虑几何非线性。“几何非线性”的含义是位移的大小对

结构的响应发生影响，例如大位移、大转动、初始应力、几何刚性化和突然翻转等。

2、??等效塑性应变PEEQ与塑性应变量PEMAG，这两个量的区别在于，PEMAG描述的是变形

过程中某一时刻的塑性应变，与加载历史无关；而PEEQ是整个变形过程中塑性应变的累积结果。等效塑性应变PEEQ大于0表明材料发生了屈服。在工程结构中，等效塑性应变一般不应超过材料的破坏应变（failure strain）。