Dynamic crack arrest analysis by ordinary state-based peridynamics

Dynamic fracture analysis for the crack arrest phenomenon is performed by ordinary state-based peridynamics formulation and discretization employing transition bond concept. Double cantilever beam specimen is chosen for our numerical evidence purpose. The analysis consists of two main phases namely,...

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Bibliographic Details
Published in:International journal of fracture 2020-02, Vol.221 (2), p.155-169
Main Authors: Imachi, Michiya, Tanaka, Satoyuki, Ozdemir, Murat, Bui, Tinh Quoc, Oterkus, Selda, Oterkus, Erkan
Format: Article
Language:English
Subjects:
Accuracy
Automotive Engineering
Cantilever beams
Characterization and Evaluation of Materials
Chemistry and Materials Science
Civil Engineering
Classical Mechanics
Computer simulation
Crack arrest
Crack propagation
Fracture mechanics
Materials Science
Mechanical Engineering
Original Paper
Stress intensity factors
Stress propagation
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Summary:Dynamic fracture analysis for the crack arrest phenomenon is performed by ordinary state-based peridynamics formulation and discretization employing transition bond concept. Double cantilever beam specimen is chosen for our numerical evidence purpose. The analysis consists of two main phases namely, generation and application (prediction) phases. In the generation phase, the dynamic stress intensity factors of propagating and arrested cracks are estimated by the present formulation for given crack path histories, and a good agreement is achieved. As for the application phase, dynamic stress intensity factors as well as total crack lengths after crack arrests are in good agreement with the experiments. Moreover, the influence of transition bond concept on the crack arrest behavior is investigated and it is found that the transition bond is very efficient in the simulation of the crack arrest problem such that premature arrests of cracks are observed without transition bond cases.
ISSN:0376-9429
1573-2673
DOI:10.1007/s10704-019-00416-3