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  • ANSYS初始残余应力赋值

    1.建模

    建立有限元模型,采用SOLID185单元,模型尺寸0.050.050.02
    材料为钢

    !程序头
    FINISH
    /CLEAR
    /FILENAME, RS
    /PREP7
    
    !设置平台的类型和材料   
    ET,1,SOLID185    
    MPTEMP,,,,,,,,    
    MPTEMP,1,0    
    MPDATA,EX,1,,210E9
    MPDATA,PRXY,1,,0.33
    MPDATA,DENS,1,,7850
    
    !样件尺寸
    BLC4,0,0,0.05,0.05,0.02
    

    2.划分网格并分组

    !设置类型
    TYPE,1
    MAT,1
    
    !划分网格
    CM,_Y,LINE    
    LSEL,S,LOC,X,0,0       
    LSEL,R,LOC,Z,0,0       
    CM,_Y1,LINE      
    CMSEL,,_Y    
    LESIZE,_Y1, , ,50, , , , ,1    
    ALLSEL,ALL      
    CM,_Y,LINE      
    LSEL,S,LOC,Y,0,0       
    LSEL,R,LOC,Z,0,0       
    CM,_Y1,LINE    
    CMSEL,,_Y       
    LESIZE,_Y1, , ,50, , , , ,1    
    ALLSEL,ALL      
    CM,_Y,LINE      
    LSEL,S,LOC,X,0,0       
    LSEL,R,LOC,Y,0,0       
    CM,_Y1,LINE    
    CMSEL,,_Y       
    LESIZE,_Y1, , ,20, , , , ,1    
    ALLSEL,ALL      
    MSHAPE,0,3D    
    MSHKEY,1    
    CM,_Y,VOLU      
    VSEL, , , ,       1    
    CM,_Y1,VOLU    
    CHKMSH,'VOLU'       
    CMSEL,S,_Y      
    VMESH,_Y1       
    CMDELE,_Y       
    CMDELE,_Y1      
    CMDELE,_Y2      
    /UI,MESH,OFF    
    
    !单元分组,按照层数,分成若5组
    !第一层
    ALLSEL,ALL  
    NSEL,R,LOC,Z,0,0.004!位置
    ESLN,R  
    CM,L1,ELEM  !组名为L1
    CMSEL,A,L1  
    
    !第二层
    ALLSEL,ALL  
    NSEL,U,LOC,Z,0,0.004
    NSEL,R,LOC,Z,0.004,0.008
    ESLN,R  
    CM,L2,ELEM  
    CMSEL,A,L2
    
    !第三层
    ALLSEL,ALL  
    NSEL,U,LOC,Z,0,0.008
    NSEL,R,LOC,Z,0.008,0.012
    ESLN,R  
    CM,L3,ELEM  
    CMSEL,A,L3
    
    !第四层
    ALLSEL,ALL  
    NSEL,U,LOC,Z,0,0.012
    NSEL,R,LOC,Z,0.012,0.016
    ESLN,R  
    CM,L4,ELEM  
    CMSEL,A,L4
    
    !第五层
    ALLSEL,ALL  
    NSEL,U,LOC,Z,0,0.016
    NSEL,R,LOC,Z,0.016,0.02
    ESLN,R  
    CM,L5,ELEM  
    CMSEL,A,L5
    
    ALLSEL,ALL!选择所有
    

    3.所有节点固定约束

    如果要查看赋值的应力是否正确,可以先把所有的节点都固定,然后求解观察。
    如果直接看赋值后的效果,则可忽略此过程

    D,ALL,ALL,0
    

    4.施加初始残余应力

    !初始应力,后面六位分别对应xx,yy,zz,xy,yz,xz
    CMSEL,S,L1!选择第一层
    INISTATE,DEFI,,,,,100,200,300,400,500,600!残余应力赋值
    ALLSEL,ALL!选择所有
    

    5.结果

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  • 原文地址:https://www.cnblogs.com/gaozihan/p/10985834.html
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