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Recent content by ananan88

  1. ananan88

    How to test the correctness of reliability analysis of slope stability

    We can calculate the value of reliability index and failure probability by a new reliability analysis method of slope stability. But how can we test the correctness of this new method by laborotory test or in situ test?
  2. ananan88

    LEM and FEM (limit equlibrium method and finite element method)

    I want to analyze the slope stability of a simple slope using FEM. And the slope has been analyzed by LEM. One of the known data is the coefficient of water pressure. If i want to compare the results of these two method, how can i consider the coefficient of water pressure in FEM?
  3. ananan88

    Can elasto-plastic stiffness matrix be unsymmetric?

    I think elasto-plastic stiffness matrix will be unsymmetric when yielding function and plastic potential function are not the same one. Am I right? If it is true, how to solve the equations in nonlinear finite element anasysis?
  4. ananan88

    the stability of natural slope,cut slope and fill slope

    You can see my post:"Geotechnical Engineers Area - Slope stability engineering Forum wenandsky88 (Civil/Environme)18 replies9/7/04 (posted 7/7) how to get factor of safety of slope based on finite element analysis".There are some discusstion about SRM. As to cut slopes and fill slopes,is there...
  5. ananan88

    the stability of natural slope,cut slope and fill slope

    Dear friends: I want to know if there are some differences among the stability of a natural slope,a cut slope and a fill slope whose size and soil parameters are all same. If i analyse their stability without thinking of the consolidation of the soils, are their stability same?Or,I want to know...
  6. ananan88

    Running multiple input files consecutively

    Dear Stipity (Computer): My code is as follows: USE DFLIB LOGICAL(4) result RESULT=SYSTEMQQ('e:\ansys\ansys71 -b -p ane3fl -i user01 -o user01out.txt') or: RESULT=SYSTEMQQ('e:\ansys\ansys71 -b -p ane3fl -i user01.txt -o user01out.txt') But when I run the program,it says "the input file name...
  7. ananan88

    how to make use of the results of ADINA or ANSYS in FORTRAN?

    Thank you all! My question is: I?want to use ADINA or ANSYS to get the mean and variance of the stresses of each elements by Monto-carlo simulation. So I need to excute the FEA many times,each with different input parameters. Can ADINA or ANSYS be excuted many times automaticly?
  8. ananan88

    how to make use of the results of ADINA or ANSYS in FORTRAN?

    Hello I'm using FORTRAN to calculate the reliability of a geotechnical engineering structure,and I need the results of the finite element analysis. But I don't know the method of how to make use of the results of ADINA or ANSYS in FORTRAN code. Can someone help me?
  9. ananan88

    how to get factor of safety of slope based on finite element analysis

    Dear friends: I'm using some finite element softwares such as ADINA\ANSYS to analysis the stability of a slope. Although I can calculate the stress and strain of each elements,I don't know how to calculate the whole safety factor of a slope.Do I need to draw many slip surfaces and calculate each...
  10. ananan88

    ansys and reliability analysis

    Dear friends: I'm learning the use of ANSYS to perform a reliability analysis. But I met with some questions that disturb me very much.These questions are: 1.How to perform a reliability analysis for each elements? I know the method to calculate the failure probability of one element by using...

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