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BEASY Fatigue Crack Growth using Finite Element Models

Introduction. What is special about BEASY?Differences between BEASY and Finite Element analysisAdvantages of BEASYWhat can BEASY do?Introduction to BEASY productsCreating BEASY models from FE sourcePerforming Fatigue and Crack Growth. What is Special about BEASY?. BEASY is a Boundary Element M

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BEASY Fatigue Crack Growth using Finite Element Models

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    1. BEASY Fatigue & Crack Growth using Finite Element Models

    2. Introduction What is special about BEASY? Differences between BEASY and Finite Element analysis Advantages of BEASY What can BEASY do? Introduction to BEASY products Creating BEASY models from FE source Performing Fatigue and Crack Growth

    3. What is Special about BEASY? BEASY is a Boundary Element Method (BEM) based analysis Most analysis code is based on the Finite Element Method (FEM) – for example ANSYS NASTRAN ABAQUS etc…

    4. Finite Element Analysis The entire model is split into elements. Each element is studied. A matrix equation is created from the combination of elements. The matrix equation is solved to give the results at all the node positions.

    5. Boundary Element Analysis Only the boundary of the surface is dividing into elements. The interaction of the elements is used to form a matrix equation. The matrix is solved to give the results on the boundary Internal point results are then obtained using a post-processing step

    6. Benefits of Boundary Element Methods Simpler model creation this simplifies cases where the model is changed during the analysis – for example during crack growth Results are given with a high degree of accuracy on the surface of the model Good accuracy can be obtained with less refined meshes Meshes can be discontinuous allowing flexibility in mesh creation

    7. Mesh creation

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