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Recent content by Ohama

  1. Ohama

    How to model a bulk structure of steel using an elastic-plastic model?

    I am using FLAC to model a bulk structure of steel impacted by a boulder. My aim is to find out where would be more likely to have over-yielded zones. For the steel, the available material parameters are the young modulus, passion ratio, and yield stress. I used an elastic- plastic model...
  2. Ohama

    Brazilian Tensile Test

    Hi, Brazilian test is an indirect experimental method to measure the tensile strength of rock. Because the strength of rocks is more pronounced in compression and shear, the tensile strength is less significant. However, tensile strength (along with the triaxial compression strength) can be...
  3. Ohama

    How to get pile shear force in FLAC3D?

    Hi there, I am using FLAC3d to model a pile. I used elements representing the concrete materials of the pile (rather than structural beam elements). The problem is: I don't know how to get the pile shear force from the results. Any advice on this will be appreciated.
  4. Ohama

    How to get pile shear force in FLAC3d?

    Hi there, I am using FLAC3d to model a pile. I used elements representing the concrete materials of the pile (rather than structural beam elements). The problem is: I don't know how to get the pile shear force from the results. Any advice on this will be appreciated.
  5. Ohama

    Ice-strengthened joint in Abaqus (with temperature change)

    Gwolf and MRG, Thanks for the comments. (sory..my reference of 'C' means cohesion). I think there is no way except to use subroutine. But what is the diffrence between FRIC and UMAT subroutine?
  6. Ohama

    Ice-strengthened joint in Abaqus (with temperature change)

    Hi I have to simulate a shear test conducted on a sample containing two pices of rocks with thin layer of ice in-between. This ice-strengthened joint has high shear strength parameters (i.e. typically C, friction) at low temerature. However, the temperature is not constant (it changes during...
  7. Ohama

    Slope stability with vegetation

    GeoPaveTraffic, gandersen, thanks for the replay. I concur that any possible shallow soil is more likely to be reinforced (by specific species of grasses). With this type of vegetation, I can understand that the vegetated soil behaves like a composite material because the roots are relatively...
  8. Ohama

    Slope stability with vegetation

    dicksewerrat, thanks for the replay. I am pretty sure that any possible shallow soil is more likely to be reinforced by specific species like prairie grasses. With this type of vegetation, I can understand that the vegetated soil behaves like a composite material because the roots are...
  9. Ohama

    Slope stability with vegetation

    I need to discuss how possible to stablize slopes with plants? Any general tips or guidline on this topic? Do you think newly planted trees can probably help stabilizing slopes with potential deep failure surface?
  10. Ohama

    Slope stability with vegetation

    I need to discuss how possible to stablize slopes with plants? Any general tips or guidline on this topic?
  11. Ohama

    Problems in the simulation of a tensile test

    hello, As far as I know: 1. TRUE stress/strain is required for material in Abaqus 2. You can't creat stress/strain curves directly..u may get stress/time curve at certain element or node as well as strain/time curve..then you could combine them to obtain stress/strain curve 3. If you are using...
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