Generalized failure criteria for computational modeling of dynamic failure
Generalized failure criteria for computational modeling of dynamic failure
In the present paper, a framework for defining the dynamic failure of materials at a general stress state is developed. Method of extending conventional quasi-static failure criteria into their dynamic formulation is proposed that utilises a concept of incubation time of failure. The incubation time property has been previously employed in formulating the dynamic failure condition that offers a more physically meaningful and robust alternative to popular dynamic failure prediction methods involving strain rate dependency of the strength of the material. Making use of the appropriately defined incubation times and stress invariants that are commonly involved in formulation of the quasi-static failure criteria, their dynamic counterparts can be delivered. The generalisation has been carried out for three popular failure criteria. Challenges of generalising the incubation time-based criterion to arbitrary load histories have been discussed and a method of implementing it in such cases has been presented.
dynamic loading, failure analysis, failure criteria, modeling and simulation
Sitnikova, Elena
e0c2f901-24fe-43d0-88e8-76f415675104
Sitnikova, Elena
e0c2f901-24fe-43d0-88e8-76f415675104
Sitnikova, Elena
(2025)
Generalized failure criteria for computational modeling of dynamic failure.
Journal of Materials Engineering and Performance.
(doi:10.1007/s11665-025-11499-6).
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Abstract
In the present paper, a framework for defining the dynamic failure of materials at a general stress state is developed. Method of extending conventional quasi-static failure criteria into their dynamic formulation is proposed that utilises a concept of incubation time of failure. The incubation time property has been previously employed in formulating the dynamic failure condition that offers a more physically meaningful and robust alternative to popular dynamic failure prediction methods involving strain rate dependency of the strength of the material. Making use of the appropriately defined incubation times and stress invariants that are commonly involved in formulation of the quasi-static failure criteria, their dynamic counterparts can be delivered. The generalisation has been carried out for three popular failure criteria. Challenges of generalising the incubation time-based criterion to arbitrary load histories have been discussed and a method of implementing it in such cases has been presented.
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s11665-025-11499-6
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Accepted/In Press date: 25 April 2025
e-pub ahead of print date: 16 June 2025
Keywords:
dynamic loading, failure analysis, failure criteria, modeling and simulation
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Local EPrints ID: 503507
URI: http://eprints.soton.ac.uk/id/eprint/503507
ISSN: 1059-9495
PURE UUID: c4de78ad-160f-443a-997e-55ec0f67f1e0
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Date deposited: 04 Aug 2025 16:48
Last modified: 22 Aug 2025 02:46
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Author:
Elena Sitnikova
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