Method and apparatus for predicting the failure of a component

  • US 7,016,825 B1
  • Filed: 10/25/2001
  • Issued: 03/21/2006
  • Est. Priority Date: 10/26/2000
  • Status: Active Grant
First Claim
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1. A method comprising;

  • obtaining a Finite Element Model (FEM) of a component;

    analyzing said FEM to obtain stresses at nodes of said FEM;

    determining a Representative Volume Element (RVE) for at least one of said nodes;

    building a microstructure-based failure model for at least one said RVE and including the microstructure-based failure model in the RVE;

    simulating a component life using at least one RVE microstructure-based failure model, said simulating producing a result related to said component life;

    performing said simulating a plurality of times to produce results related to component life; and

    using the results to provide a prediction of failure for the component.

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