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  1. thecirclingman

    Factoring the stiffness matrix only once in multiple steps ?

    Yes, of course that's right. If the loads were directly proportional to each other then I would just have to analyze the first one and scale the results ! I've also faced this misconception many times. However, it's not that simple here, and the load set at step 2 is not just the load set at...
  2. thecirclingman

    Factoring the stiffness matrix only once in multiple steps ?

    Thanks for your answer ! Hmm, if you're sure that Abaqus "knows" the stiffness hasn't changed when it reaches the following steps, then I have no problem at all :) However, in my case, at the end of the .msg file I see that the 198 increments involved "198 passes through the linear solver", and...
  3. thecirclingman

    Factoring the stiffness matrix only once in multiple steps ?

    Hello ! I'm running Abaqus/Standard 6.7-1 to analyze a large structure (500,000 DOFs) using linear elasticity, with many load increments involved --- there's like 200 of them, and I need them because submodeling comes next. It works fine, but the process is pretty long. By looking at the log...
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