Recent content by 50Cent

  1. 5

    Simulating Bonded Contact from ANSYS Mechanical in ANSYS APDL

    Hi, So i solved the above problem. I had forgotten to change the contact settings from "Standard" to "Bonded (always)" in the contact wizard. However, that didnt solve my problem as i was still getting large errors. So i thought i would do a test to see if it was my contact settings. I had...
  2. 5

    Applying Load on an area - ANSYS APDL

    Ahh right, no didnt see that. I got around the problem by applying a negative pressure (as I knew the area the force was being applied over) on the surface. Thanks for the comment though!
  3. 5

    Applying Load on an area - ANSYS APDL

    Hi, Have been using ANSYS Mechanical to conduct some analyses, but am now moving to ANSYS APDL to investigate the effectiveness of Solid-Shell elements. However, I've run into a problem. I can't figure out how to apply a load to an area! I have been playing around with the SURF154...
  4. 5

    Simulating Bonded Contact from ANSYS Mechanical in ANSYS APDL

    Any suggestions? Been looking for some good contact tutorials... but couldnt find any :/ anyone got a link for one?
  5. 5

    ANSYS Mechanical APDL - How to scope results to specific elements of an assembly

    Hi, I have been using both ANSYS APDL and ANSYS Workbench (Mechanical) to run analysis on a structure. After loading the structure, in Mechanical i was able to scope my results for deformation and EQUIV stress to just the adhesive layer as this is what im interested in. However, I can't...
  6. 5

    Simulating Bonded Contact from ANSYS Mechanical in ANSYS APDL

    Hi, I created the model in SolidEdge and saved it as an iges file. Then using Workbench, i set up a Mechanical APDL module and assigned the iges model to it. Then i can right click and say "edit in Mechanical APDL" and it will start up ANSYS classic for me to do my meshing, add loads etc...
  7. 5

    Simulating Bonded Contact from ANSYS Mechanical in ANSYS APDL

    Simulating "Bonded Contact" from ANSYS Mechanical in ANSYS APDL Hi, Im looking into the accuracy of using different element types to model a particular structure. As a simple approximation think of it as a beam split into 3 horizontal sections. Shown in the diagram as top, middle & bottom...
  8. 5

    Area Calculations to find Jc energy Parmeter (simple maths)

    Hi, I tried it again by doing what you suggested and splitting the diagram further into 4 triangles and 1 rectangle. I got a positive area and solved the question :D Thanks for your help!
  9. 5

    Area Calculations to find Jc energy Parmeter (simple maths)

    Homework Statement I have been given the following load-displacement plots for the same specimin with two different crack lengths. The lines are identical up to a load od 750N i need to calculate the area of the blue shaded region to obtain a value of Jc using a separate equation...
  10. 5

    Calculating Nominal strain at which Necking Occurs

    Homework Statement Given two wires of guage length 100mm and 200mm They are loaded to fracture in tension The 100mm sample extends by 15mm The 200mm sample extends by 25mm. I need to use this information to calculate the nominal strain at which necking commences in the wires Homework...
  11. 5

    Effect of Temp on yield stress and fracture toughness

    ahh right. I think thats the question sorted then :) Again thank you very much, you've helped me out a great deal!! Appreciate it :D
  12. 5

    Effect of Temp on yield stress and fracture toughness

    Ahh i see. Yes i understand that. I can explain the yield graph very well now, thanks for your help. Really Appreciate it. Finally for the fracture toughness graph. Do i apply the same information about dislocations being less likely to move at lower temp? Or is it because at low temp the...
  13. 5

    Effect of Temp on yield stress and fracture toughness

    Ok Thanks, So the material has a low yield stress at higher temperature, because the disocations are easier to move? When you say thermally activated processes, what do you mean by that? A brittle fracture fails by rapid crack propagation, as is normally perpendicular to the applied stress...
  14. 5

    Effect of Temp on yield stress and fracture toughness

    Hi, Thanks for the reply. What is the temperature-dependant mechanism? Ive been looking through a few books and searching google for hours but cant find any difinitive answers. Perhaps my searches arent specific enough. i found this text though online ===================== The most...
  15. 5

    Effect of Temp on yield stress and fracture toughness

    Homework Statement I am given the trends for yield stress and fracture toughness as functions of temperature for steel. I need to explain the trends Homework Equations none The Attempt at a Solution I am guessing the yield stress is the stress that the material can withstand...
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