Abstract
This paper is devoted to the analysis of the damage in nonlinear mesoscopic materials, which are aggregates of grains which act as rigid vibrating units, while the contacts between them – the bond system – constitute a set of interfaces that control the behaviour of the material. The interfaces are mesoscopic, with a typical size of one micrometer. A constitutive micropolar model for material interfaces is presented. The model is based on damage coupled to plastic or viscoplastic slip, stick and dilatation (separation), and it is able to describe the succesive degradation and failure of an interface.
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Acknowledgment
The authors acknowledge the financial support of the CEEX postdoctoral grant 1531/2006. Best thanks are presented also to Professor Pier Paolo Delsanto and to Dr. Marco Scalerandi (Dipartimento di Fisica, Politecnico di Torino) for the important suggestions and discussions in the field of this topic.
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Chiroiu, V., Dumitriu, D., Mitu, A.M., Baldovin, D., Secara, C. (2009). On the Damage in Nonlinear Mesoscopic Materials. In: Mastorakis, N., Mladenov, V., Kontargyri, V. (eds) Proceedings of the European Computing Conference. Lecture Notes in Electrical Engineering, vol 28. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-85437-3_41
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DOI: https://doi.org/10.1007/978-0-387-85437-3_41
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