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arXiv · 1511.07037

On materials destruction criteria

L. S. Kremnev
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Abstract

In terms of nonlinear material fracture mechanics, the real (discrete)-structure material fracture model has been developed. The model rests on the demonstration of the fact that crack resistance $K_{1c}=2σ\sqrt l$ and fracture toughness are $G_{1c}=J_{1c}=2σl$ obtained on the basis of energy conservation law and derived without linear material fracture mechanics assumptions can be respectively taken as force and energy criteria for non-linear fracture mechanics. It is shown that $G_{1c}=K_{1c}^2/E$ is the energy criterion of linear fracture mechanics of material and it is sufficiently less than $G_{1c} = J_{1c}=2σl$.

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L. S. Kremnev. 2015-11-22. On materials destruction criteria. https://arxiv.org/abs/1511.07037

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