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Simulation of crack extension in shell structures and prediction of residual strength

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Abstract

Two models for the numerical simulation of ductile crack extension in shell structures are presented and compared. They are based on the crack tip opening angle and a cohesive zone approach. After identification of the model parameters and investigations of the mesh dependence, the models are applied to various specimen configurations and structural components. Their excellent numerical performance favors their application for predicting the residual strength of lightweight components like aircraft fuselages.

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Authors and Affiliations

  1. GKSS Research Centre, 21402, Geesthacht, Germany

    Wolfgang Brocks, Ingo Scheider & Manfred Schödel

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  1. Wolfgang Brocks
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  2. Ingo Scheider
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  3. Manfred Schödel
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Correspondence to Wolfgang Brocks.

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Brocks, W., Scheider, I. & Schödel, M. Simulation of crack extension in shell structures and prediction of residual strength. Arch Appl Mech 76, 655–665 (2006). https://doi.org/10.1007/s00419-006-0041-9

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