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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
International Journal for Multiscale Computational Engineering
Импакт фактор: 1.016 5-летний Импакт фактор: 1.194 SJR: 0.554 SNIP: 0.82 CiteScore™: 2

ISSN Печать: 1543-1649
ISSN Онлайн: 1940-4352

Выпуски:
Том 18, 2020 Том 17, 2019 Том 16, 2018 Том 15, 2017 Том 14, 2016 Том 13, 2015 Том 12, 2014 Том 11, 2013 Том 10, 2012 Том 9, 2011 Том 8, 2010 Том 7, 2009 Том 6, 2008 Том 5, 2007 Том 4, 2006 Том 3, 2005 Том 2, 2004 Том 1, 2003

International Journal for Multiscale Computational Engineering

DOI: 10.1615/IntJMultCompEng.v9.i2.10
pages 137-148

A NOVEL PHYSICAL APPROACH FOR MODELING PLASTIC DEFORMATION IN THIN MICROWIRES

H. Farahmand
Department of Mechanical Engineering, Islamic Azad University of Kerman Branch, Kerman, Iran
Ali Reza Saidi
Department of Mechanical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
S. Arabnejad
Young Researchers Club, Kerman branch, Islamic Azad University, Kerman, Iran

Краткое описание

Several experimental results contribute to the effects of length scale parameters. Most models for these experimental data are developed based on strain gradient theory. Compared with the scale of dislocation movement and hardening mechanisms, which are used to model the physical-based strain gradient, plastic deformation in microstructures is sufficiently large, so that finite plasticity theory could be well justified. Therefore, the main objective of this work is to develop a strain gradient theory with the cooperation of dislocation theory and finite plastic as a new constitutive equation. This procedure is accomplished with the intrinsic length scale relation, which is dedicated to the phenomenological development of plasticity laws for microstructures in finite plasticity. It is a new process of expressing the plastic deformation result for microstructures. Finally, the result of this new theory is indicated for microwires.

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