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  • Users: johnsmith2
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  1. johnsmith2

    Should I expect at least a cost of living raise

    The salary is dependent on the location. For high cost of living, such as CA, 56K is low. But, at Texas, this amount is good.
  2. johnsmith2

    Limit Load Analysis using ANSYS

    What is the limit load analysis? Anyone can tell me, Thanks.
  3. johnsmith2

    Shouldn't the thid strain compenent vanish in the plane strain case

    HI xerf, If you mean the material is purely elastic, no plasticity, EE33 should be zero?
  4. johnsmith2

    apply displacement instead of force

    rb1957, What is NASTRAN's GridPointForce balance? Thanks.
  5. johnsmith2

    apply displacement instead of force

    thanks again. My material is a linear one with stainless steel. It is not a contact roblem. I should be able to check the reaction force in ABAQUS at the displacement that I applied. prost, What do you mean by 100th the force? I applied the force in single step. It becomes unstable in the...
  6. johnsmith2

    apply displacement instead of force

    thanks for all reply. My problem becomes unstable because of too much force applied. I found that when I try to apply the displacement, instead of force/pressure and keep everything the same (mesh). It can converge. That's why I want displacement-controlled. For prost, my material behavior is...
  7. johnsmith2

    CosmosWorks Results Accurate?

    If we use the shell elements, we should model the geometry (CAD) with mid-surface, but the inner or outer surface, then defining the thickness.
  8. johnsmith2

    apply displacement instead of force

    In my model, when I apply the force/pressure, model becomes unstable. I know applied displacement controlled can solve this problem. However, how do I know the value of displacement should I apply. Can I check the reaction force to ensure the displacement that I apply being the same the...
  9. johnsmith2

    Weld Modeling

    how can we model the weld with shell elements. The solid weld is not small in thickness of one direction compared with others.
  10. johnsmith2

    Force/Pressure

    Only one direction of reaction force is the same when you compare three cases. However, you will find the difference in other two directions. So, they are not the same reaction forces, but the difference is not much. If I were you, I prefer to apply the pressure in loading.
  11. johnsmith2

    Engineering capacity constraints

    We usually outsource to the local consulting companies. Be careful of some oversea companies. Somehow, we told them what we need and the requirements. But the outcome is bad and cannot pass the standard as we need. Then, we need to find our employee to re-engineer their products and designs. It...
  12. johnsmith2

    Force/Pressure

    You need to check the reaction forces in all directions and you will see the difference.
  13. johnsmith2

    How many engineers have MBA

    I also consider to take the MBA. I am in mid 30. Some told me full-time is better than the part time. But, how come I can support without pay for two years and at the same time, pay school fee of at least 25,000 for one year. When employer see your resume, full-time is really important?
  14. johnsmith2

    Force/Pressure

    To know it is correct or wrong? Apply the loading in three cases, applying pressure, distributed or kinetic coupling loading.
  15. johnsmith2

    Force/Pressure

    A distributed coupling does not eliminate degrees of freedom at the coupling nodes. It distributes loads such that the resultant forces at the coupling nodes is equal to the forces at the reference node.
  16. johnsmith2

    hyperfoam FEA?

    Hyperfoam is a kind of elastomeric material with very highly compressible. How to check this material can withstand incompressible which strain inexcess of 150% during service load. What parameter should I check and what precaution should I take? Thanks.
  17. johnsmith2

    Force/Pressure

    Use coupling on the reference point to the surface that you want to apply the force. Use distributed one.
  18. johnsmith2

    Abaqus Vs. Marc

    Yoman228, I am the user of abaqus in US. I find their technical support being good and reply in a short time. But I find usually, for engineering problem, they cannot answer very well. You cannot expect them to answer how to apply the boundary conditions in engineering problems. But for the...
  19. johnsmith2

    IT Department Restrictions

    I am the user of some programs, such as ansys, abaqus, solidworks. I want to come here to share some information. Now, I can't, so I come here at home.
  20. johnsmith2

    IT Department Restrictions

    Ou IT department block me to go into this eng-tips.com. I don't know why? I get a lot of information here!! Please answer me. IT guys. I need to come at home now!!!!!

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