Understanding the edge crack phenomenon in ceramic laminates

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Date
2015-10-05
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Mark
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Gruppo Italiano Frattura
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Abstract
In this work, a 2D parametric finite element model has been developed to predict the onset and propagation of an edge crack in ceramic laminates using a coupled stress-energy criterion. This approach states that a crack is originated when both stress and energy criteria are fulfilled simultaneously. Several designs with different residual stresses and a given thickness in the compressive layers have been computed. The results predict the existence of a lower bound, below no edge crack will be observed, and an upper bound, beyond which the onset of an edge crack would lead to the complete fracture of the layer.
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Frattura ed Integrita Strutturale. 2015, vol. 9, issue 34, p. 362-370.
http://www.gruppofrattura.it/pdf/rivista/numero34/numero_34_art_40.pdf
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Peer-reviewed
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en
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Creative Commons Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
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