Nanostructured interfaces for enhancing mechanical properties of composites: Computational micromechanical studies |
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| Affiliation: | 1. Composites Research Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, School of Mechanical Engineering, Iran University of Science and Technology, Tehran 16846-13114, Iran;2. School of Chemical Engineering, Shandong University of Technology, 255049 Zibo, Shandong, PR China;1. Mechanical Engineering, Amirkabir University of Technology, Tehran, Iran;2. Aerospace Engineering, Amirkabir University of Technology, Tehran, Iran;1. Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Hafez Ave. 424, Tehran 15914, Iran;2. Young Researchers and Elite Club, Arak Branch, Islamic Azad University, Arak, Iran;3. Department of Mechanical Engineering, Tarbiat Modares University, Tehran 14115-143, Iran;1. State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, PR China;2. School of Materials Science and Engineering, Dalian University of Technology, Dalian, 116024, PR China;3. Liaoning Province Engineering Research Centre High-Performance Resins, Dalian, 116024, PR China;4. School of Chemistry and Materials Science, Ludong University, Yantai, 264025, PR China |
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| Abstract: | Computational micromechanical studies of the effect of nanostructuring and nanoengineering of interfaces, phase and grain boundaries of materials on the mechanical properties and strength of materials and the potential of interface nanostructuring to enhance the materials properties are reviewed. Several groups of materials (composites, nanocomposites, nanocrystalline metals, wood) are considered with view on the effect of nanostructured interfaces on their properties. The structures of various nanostructured interfaces (protein structures and mineral bridges in biopolymers in nacre and microfibrils in wood; pores, interphases and nanoparticles in fiber/matrix interfaces of polymer fiber reinforced composites and nanocomposites; dislocations and precipitates in grain boundaries of nanocrystalline metals) and the methods of their modeling are discussed. It is concluded that nanostructuring of interfaces and phase boundaries is a powerful tool for controlling the material deformation and strength behavior, and allows to enhance the mechanical properties and strength of the materials. Heterogeneous interfaces, with low stiffness leading to the localization of deformation, and nanoreinforcements oriented normally to the main reinforcing elements can ensure the highest damage resistance of materials. |
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| Keywords: | B Interface/interphase C Computational modeling C Micro-mechanics B Damage tolerance |
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