Granular Micromechanics
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Granular micromechanics provides a paradigm that bridges the discrete models to appropriate continuum models for describing material mechanical behavior at the so called macroscales.[1] Continuum models require considerably less number of parameters in contrast to those needed for accurate discrete modelling of materials. In granular micromechanics, the underlying granular nature/motif of materials is invoked by considering that material systems are composed of nearly rigid elements (or grains) such that the elastic strain energy is stored and/or energy dissipated in the deformable mechanisms represented through interconnections or interfaces between the grains.[1] The grains are considered as geometrically bulky objects with clearly recognizable (demarcable) boundaries, which in many materials could be welded or glued together forming spatially thin inter-phases. The key underlying feature of granular micromechanics is that the relative movements of the grain centroid/barycenter can be used to describe the deformation of such material systems regardless of the location of the actual deformation. Granular micromechanics has been used to predict the behavior of metamaterials,[2], structural elements[3] ultra high performance fiber-reinforced concrete (UHP-FRC),[4] asphalt,[5] and mineralized tissue.[6]
References
- ↑ 1.0 1.1 Misra, Anil; Placidi, Luca; Barchiesi, Emilio (2022), "Continuum Models via Granular Micromechanics", Theoretical Analyses, Computations, and Experiments of Multiscale Materials: A Tribute to Francesco dell’Isola, Springer International Publishing, pp. 183–192, doi:10.1007/978-3-031-04548-6_10, ISBN 978-3-031-04548-6, retrieved 2025-08-19
- ↑ Misra, Anil; Nejadsadeghi, Nima; De Angelo, Michele; Placidi, Luca (2020-09-01). "Chiral metamaterial predicted by granular micromechanics: verified with 1D example synthesized using additive manufacturing". Continuum Mechanics and Thermodynamics. 32 (5): 1497–1513. Bibcode:2020CMT....32.1497M. doi:10.1007/s00161-020-00862-8. ISSN 1432-0959.
- ↑ Poorsolhjouy, Payam; Gonzalez, Marcial (2021-12-15). "Granular micromechanics modeling of beams, plates, and shells". Composite Structures. 278. doi:10.1016/j.compstruct.2021.114559. ISSN 0263-8223. Unknown parameter
|article-number=ignored (help) - ↑ Placidi, Luca; dell’Isola, Francesco; Kandalaft, Abdou; Luciano, Raimondo; Majorana, Carmelo; Misra, Anil (2024-07-01). "A granular micromechanic-based model for Ultra High Performance Fiber-Reinforced Concrete (UHP FRC)". International Journal of Solids and Structures. 297. doi:10.1016/j.ijsolstr.2024.112844. ISSN 0020-7683. Unknown parameter
|article-number=ignored (help) - ↑ Misra, Anil; Singh, Viraj; Darabi, Masoud K. (2019-09-02). "Asphalt pavement rutting simulated using granular micromechanics-based rate-dependent damage-plasticity model". International Journal of Pavement Engineering. 20 (9): 1012–1025. doi:10.1080/10298436.2017.1380804. ISSN 1029-8436.
- ↑ Misra, Anil; Sarikaya, Rizacan (2020-03-01). "Computational analysis of tensile damage and failure of mineralized tissue assisted with experimental observations". Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine. 234 (3): 289–298. doi:10.1177/0954411919870650. ISSN 0954-4119. PMC 7028502 Check
|pmc=value (help). PMID 31426717.
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