Application of the bridged crack model for evaluation of materials repairing and self-healing

The bridged crack model is used for analysis of repairing and self-healing of cracked structures. Material repairing is treated as insertions of external ligaments into cracks or placement of the reinforcing patches over cracks. Bonds destruction and regeneration at the crack bridged zone is evaluat...

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Bibliographic Details
Published in:Journal of physics. Conference series 2017-12, Vol.937 (1), p.12039
Main Author: Perelmuter, M
Format: Article
Language:English
Subjects:
Chemical reactions
Composite materials
Cracks
Differential equations
Evaluation
Kinetic theory
Materials durability
Physics
Regeneration
Self healing materials
Stress intensity factors
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Summary:The bridged crack model is used for analysis of repairing and self-healing of cracked structures. Material repairing is treated as insertions of external ligaments into cracks or placement of the reinforcing patches over cracks. Bonds destruction and regeneration at the crack bridged zone is evaluated by the thermo-fluctuation kinetic theory. The healing time is dependent on the chemical reaction rate of the healing agent, the crack size and the external loads. The decreasing of the stress intensity factors is used as the measure of the repairing and healing effects. The mathematical background of the problem solution is based on the methods of the singular integral-differential equations. The model can be used for the evaluation of composite materials durability.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/937/1/012039