Displacement Approach to Determine the Effective Tensile and Torsional Modulus of Nanowires

Surface elasticity and residual stress have a strong influence on the effective properties of nanowire (NW) due to its excessively large surface area-to-volume ratio. Here, the classical displacement method is used to solve the field equations of the core-surface layer model subjected to tension and...

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Main Authors: Lin Fang, Quan Yuan, Bin Wu, Honglin Li, Mengyang Huang
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Advances in Civil Engineering
Online Access:http://dx.doi.org/10.1155/2021/4537485
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author Lin Fang
Quan Yuan
Bin Wu
Honglin Li
Mengyang Huang
author_facet Lin Fang
Quan Yuan
Bin Wu
Honglin Li
Mengyang Huang
author_sort Lin Fang
collection DOAJ
description Surface elasticity and residual stress have a strong influence on the effective properties of nanowire (NW) due to its excessively large surface area-to-volume ratio. Here, the classical displacement method is used to solve the field equations of the core-surface layer model subjected to tension and torsion. The effective Young’s modulus is defined as the ratio of normal stress to axial strain, which decreases with the increase in NW radius and gradually reaches the bulk value. The positive or negative surface residual stresses will increase or decrease Young’s modulus and shear modulus due to the surface residual strains. Nonzero radial and circumferential strains enhance the influence of surface moduli on the effective modulus.
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institution Kabale University
issn 1687-8086
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language English
publishDate 2021-01-01
publisher Wiley
record_format Article
series Advances in Civil Engineering
spelling doaj-art-61d983bf763e437aa9a4e4b65601b6f92025-02-03T06:13:44ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/45374854537485Displacement Approach to Determine the Effective Tensile and Torsional Modulus of NanowiresLin Fang0Quan Yuan1Bin Wu2Honglin Li3Mengyang Huang4China Merchants Chongqing Communications Research & Design Institute Co., Ltd., Chongqing 400067, ChinaSchool of Civil Engineering, Architecture and Environment, Xihua University, Hongguang Town, Chengdu 610039, ChinaSichuan Yakang Expressway Co., Ltd., Ya’an 625000, ChinaChina Railway Construction Bridge Engineering Bureau Group 3rd Engineering Co., Shenyang 110043, ChinaSchool of Civil Engineering, Architecture and Environment, Xihua University, Hongguang Town, Chengdu 610039, ChinaSurface elasticity and residual stress have a strong influence on the effective properties of nanowire (NW) due to its excessively large surface area-to-volume ratio. Here, the classical displacement method is used to solve the field equations of the core-surface layer model subjected to tension and torsion. The effective Young’s modulus is defined as the ratio of normal stress to axial strain, which decreases with the increase in NW radius and gradually reaches the bulk value. The positive or negative surface residual stresses will increase or decrease Young’s modulus and shear modulus due to the surface residual strains. Nonzero radial and circumferential strains enhance the influence of surface moduli on the effective modulus.http://dx.doi.org/10.1155/2021/4537485
spellingShingle Lin Fang
Quan Yuan
Bin Wu
Honglin Li
Mengyang Huang
Displacement Approach to Determine the Effective Tensile and Torsional Modulus of Nanowires
Advances in Civil Engineering
title Displacement Approach to Determine the Effective Tensile and Torsional Modulus of Nanowires
title_full Displacement Approach to Determine the Effective Tensile and Torsional Modulus of Nanowires
title_fullStr Displacement Approach to Determine the Effective Tensile and Torsional Modulus of Nanowires
title_full_unstemmed Displacement Approach to Determine the Effective Tensile and Torsional Modulus of Nanowires
title_short Displacement Approach to Determine the Effective Tensile and Torsional Modulus of Nanowires
title_sort displacement approach to determine the effective tensile and torsional modulus of nanowires
url http://dx.doi.org/10.1155/2021/4537485
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AT binwu displacementapproachtodeterminetheeffectivetensileandtorsionalmodulusofnanowires
AT honglinli displacementapproachtodeterminetheeffectivetensileandtorsionalmodulusofnanowires
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