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1)  method of initial stress
初应力提法
2)  Initial Stress Method
初应力法
1.
Application of Initial Stress Method to Computing Early Age Concrete Stress of the High-rise Building Basement Wall;
利用初应力法计算高层建筑地下室侧墙早期混凝土应力(英文)
2.
if the time, the creep coefficient and relaxation coefficient satisfy the following equations:(2)the recurrence formula of solving the relaxation coefficient K_p(t,)directly from thecreep coefficient C(t)is presented;(3)the general recurrence formulas of initial strainmethod and initial stress method for any kinds of expressions of C(t,)and K_P(t, )aredirived,they can.
本文在线性徐变条件下，（１）导出了关于徐变度和松弛系数的两个定理；（２）提出了直接由徐变度求松弛系数的一种递推公式；（３）对求解徐变问题的初应变法和初应力法，导出了对于任意的松弛系数和徐变度表达式的一般递推公式，从而简化了计算方法，避免了应变或应力历史资料的存贮，节省计算机的大量存贮量。
3)  initial stresses method
初应力法
1.
The coupling dynamic modeling of flexible beams was studied by using initial stresses method.
研究了初应力法的作大范围运动柔性梁的建模理论。
4)  Belated initial stress method
差时初应力法
5)  flange gasket residual stress
法兰垫初期应力
6)  element initial stress method
单元初始应力法
1.
An element initial stress method to calculate stress intensity factor of three-dimensional mixed-mode crack is introduced.
对单元初始应力法应用于复合型三维裂纹问题进行了研究。
补充资料：ANSYS工字梁焊缝初应力例子

建立好模型
…..
/SOLU
!*
ANTYPE,0
/INPUT,'input','txt',
/INPUT,'output1','txt',
!*
ISFILE,READ,1,txt, ,0
SOLVE
=====================
!定义残余应力矩阵
I=1
fy=310e6
!定义单元中心坐标数组，初应力数组
*DIM,EleCenter,ARRAY,NumNode,3,1, , ,
*DIM,EleIS,ARRAY,NumNode,1,1, , ,
*DO,I, 1, NumNode,1
!得到单元中心坐标
*GET,EleCenter(I,1,1),ELEM,I,CENT,X
*GET,EleCenter(I,2,1),ELEM,I,CENT,Y
*GET,EleCenter(I,3,1),ELEM,I,CENT,Z
!焊缝位置在X=1.0 到1.05 之间
*IF,EleCenter(I,1,1),GT,1,THEN
*IF,EleCenter(I,1,1),LT,1.05,THEN
*IF,EleCenter(I,2,1),GT,0.5,THEN
!上翼缘初始应力
EleIS(I,1,1)=-20*fy*EleCenter(I,3,1)**2+0.3*fy
*endif
*IF,EleCenter(I,2,1),LT,0.0,THEN
!下翼缘初始应力
EleIS(I,1,1)=-20*fy*EleCenter(I,3,1)**2+0.3*fy
*endif
!腹板初始应力
*if,EleCenter(I,2,1),GE,0.0,THEN
*IF,ELECENTER(I,2,1),LE,0.5,THEN
EleIS(I,1,1)=4.076*fy*(EleCenter(I,2,1)-0.5)**2
EleIS(I,1,1)=EleIS(I,1,1)-0.719*fy
*IF,EleIS(I,1,1),LT,-0.3*fy,THEN
ELeIS(I,1,1)=-0.3*fy
*ENDIF


*ENDIF
*ENDIF
*ENDIF
*ENDIF
*ENDDO
===============
!输出应力数值
*CFOPEN,'1','txt',' '
*DO,I,1,3840
!*IF,EleIS(I,1,1),ne,0.,then
*VWRITE,'!'
(A)
*VWRITE,'! Stress for element',
(A,F)
*VWRITE,'!'
(A)
*VWRITE,'eis,',I
(A,F)
P=EleIS(I,1,1)
*VWRITE,P,0.,0.,0.,0.,0.
(E,E,E,E,E,E)
!*ENDIF
*ENDDO
*CFCLOS

说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条