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Recent content by acar2

  1. acar2

    For those who use ANSYS the followi

    For those who use ANSYS the following technical note might be of interest: http://www.ramsay-maunder.co.uk/knowledge-base/technical-notes/ansys--potential-issue-with-element-table-operation/ It identifies how the software appears to use an approximate integration scheme for some Element Table...
  2. acar2

    Inexpensive FEA software Smackdown! LISA vs Mecway - which is better?

    I recently worked on a project where a third-party had used LISA for a beam vibration problem. I undertook a software verification test (http://www.ramsay-maunder.co.uk/knowledge-base/simulation-governance/verification/beam-element-in-lisa/) to check that LISA was giving the correct solution...
  3. acar2

    Elements Stiffness

    In conventional FE packages there are generally lower and higher order elements. Lower order elements have nodes at the vertices whereas higher order elements have additional mid-side nodes. As the elements are iso-parametric, the nodes define not only the shape of the element but also the...
  4. acar2

    Yield line patterns

    Hi 3JC, I run a company that is developing limit analysis software that may be used for reinforced concrete and metallic plate structures. It includes the upper-bound yield line analysis method and a complementary lower-bound equilibrium method. Using both gives a bounded solution on the...
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