Strain gradient micromechanical modeling of substrate – supported crystalline microplates subjected to permanent in-plane and out-of-plane tractions
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Amer Darvishvand [1] ; Asghar Zajkani [1]
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[1] Imam Khomeini International University
Imam Khomeini International University
Irán
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- Localización: Mechanics based design of structures and machines, ISSN 1539-7734, Vol. 49, Nº. 7, 2021, págs. 969-985
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
A benchmark study of small size plate structures exposed to permanent environmental interactions is presented. Micromechanically-motivated model is introduced for thin crystalline microplates under in-plane and out-of-plane excitations. Lower-order strain gradient plasticity (SGP) model is developed based on Chen-Wang Hardening law incorporating the influence of effective length scale. Since hardening parameter is a fundamental factor in physical descriptions of material, obtained results demonstrate the effect of length scale on the effective stresses due to in-plane and outof- plane excitations. While substrate – supported foundation is included, deflection and stress-strain curves are compared as well as the effect of variable tangent module.
