Particle Modeling Based on Interatomic Potential and Crystal Structure: A Multi-Scale Simulation of Elastic-Plastic Deformation of Metallic Material

The present work deals with the computation of surface stresses and deformation in the presence of friction. The evaluation of the elastic-plastic contact is analyzed revealing three distinct stages that range from fully elastic through elastic-plastic to fully plastic contact interface. Several factors of sliding friction model are discussed: surface roughness, mechanical properties and contact load and areas that have strong effect on the friction force. The critical interference that marks the transition from elastic to elastic- plastic and plastic deformation is found out and its connection with plasticity index. A finite element program for determination contact analysis of the assembled details and due to details of deformation that arose a normal and tangencial stress is used.

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Energy storage and dissipation of elastic-plastic deformation under shock compression: Simulation and Analysis

Mechanics of Materials ◽

10.1016/j.mechmat.2021.103876 ◽

2021 ◽

Vol 158 ◽

pp. 103876

Author(s):

Qi-lin Xiong ◽

Zhenhuan Li ◽

Takahiro Shimada ◽

Takayuki Kitamura

Keyword(s):

Plastic Deformation ◽

Energy Storage ◽

Shock Compression ◽

Elastic Plastic

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Effect of strain rate on elastic-plastic deformation in high cycle fatigue properties

Metals and Materials International ◽

10.1007/s12540-014-6005-7 ◽

2014 ◽

Vol 20 (6) ◽

pp. 1027-1035 ◽

Cited By ~ 4

Author(s):

Choong do Lee

Keyword(s):

Plastic Deformation ◽

Strain Rate ◽

High Cycle Fatigue ◽

Fatigue Properties ◽

Cycle Fatigue ◽

Elastic Plastic

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Multi-scale structural analysis of the A-site and oxygen deficient perovskite Sr11Mo4O23

Dalton Transactions ◽

10.1039/c7dt02087b ◽

2017 ◽

Vol 46 (37) ◽

pp. 12466-12473 ◽

Cited By ~ 3

Author(s):

Graham King ◽

Maxim Avdeev ◽

Ilyas Qasim ◽

Qingi Zhou ◽

Brendan J. Kennedy

Keyword(s):

Crystal Structure ◽

Structural Analysis ◽

Multi Scale ◽

Local Correlations ◽

A Site

The crystal structure of Sr11Mo4O23 and the local correlations between the disordered sites are examined.

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Virtual Material Model of Joint Interfaces Considering Elastic-Plastic Deformation of Asperities

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.457-458.257 ◽

2013 ◽

Vol 457-458 ◽

pp. 257-261

Author(s):

Li Gang Cai ◽

Teng Yun Xu ◽

Yong Sheng Zhao

Keyword(s):

Plastic Deformation ◽

Elastic Modulus ◽

Fractal Theory ◽

Material Model ◽

Contact Theory ◽

Hertz Contact ◽

Calculation Methods ◽

Elastic Plastic ◽

Element Simulation ◽

Simulation Results

A virtual material model of joint interfaces was established based on the Hertz contact theory and fractal theory, this model was improved by considering the influence of the elastic-plastic deformation of asperities and ameliorating the calculation methods of the elastic modulus. The simulation results of elastic-plastic considered and elastic-plastic unconsidered were compared, moreover, the finite element simulation results and experimental results were compared to fully explain the necessity of considering the influence of the elastic-plastic deformation and the the correctness of the method to calculate the elastic modulus. The research suggested that under a same load the elastic modulus of the model considering the influence of the elastic-plastic deformation was slightly larger than the un considering one, which means it could describe the characteristics of joint interfaces more accurately.

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