PSI - Issue 47

Mikhail Perelmuter / Procedia Structural Integrity 47 (2023) 545–551 M. Perelmuter / Structural Integrity Procedia 00 (2023) 000–000

551

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5. Closing

The proposed model allows one to study the physical processes of crack self-healing in terms of crack bridging model. The model can be used for estimating the stress intensity factors modulus in relation to the time of bonds recovery. Because of the exponential dependence in relation (2), the results of such model computations depend strongly on the initial data. In this connection, it is of prime interest to apply the model for comparing di ff erent ways of crack self-healing under respective loading conditions. The model is applicable to crack self-healing in di ff erent materials and under di ff erent physics-chemical conditions. The character of self-healing determines the main model parameters (see relations ((1)-(2)). Most of these parameters can be determined only experimentally for a particular self-healing type. Some of them (bond sti ff ness, for example), can be found through physical simulations of self healing processes in di ff erent types of materials. With proper parameters choice and experimental prove, the model can serve as tool for analysis of self-healing processes in polymers, ceramics, metals, and their compounds.

Acknowledgements This work is supported by the Russian Science Foundation under grant No. 23-29-00524. References

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