DEFORMABILITY OF CONTACT LAYERS

Journal of Applied Physical Science International

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Field Value
 
Title DEFORMABILITY OF CONTACT LAYERS
 
Creator KRASTEV, RUMEN KRASTEV
 
Description Machine and structural components have volume and surfaces. The last does not have an ideal shape, and they are rough. When two components have mechanical contact (like one foot of a desk and the floor), this contact has a common contact surface. It is well known that real contact surface is much smaller than the nominal cross-section of the smaller component. Furthermore, the volume that is near the contact surface is not dense. It contains asperities and empty space between them. This article answers the question “What happens with this contact volume and could we measure its size when the load changes?”  The theory starts with an acceptance that this volume (contact layer) is filled non-homogeneously with solid material and therefore its mechanical behaviour is non-linear.   This paper suggests a semi-empiric model that describes this phenomenon and also a method for interpretation and presentation of nonlinear force-displacement diagrams. This semi-empiric relationship is , where P is the load,  is the uniaxial deformation of the system with base length L, containing one contact layer and both a, b are regression coefficients. The paper presents results for deformability of the contact layer between a specimen, made of light silicate concrete, and the steel support.
 
Publisher International Knowledge Press
 
Date 2018-10-29
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier http://www.ikprress.org/index.php/JAPSI/article/view/4239
 
Source Journal of Applied Physical Science International; 2018 - Volume 10 [Issue 4]; 163-174
2395-5279
 
Language eng
 
Relation http://www.ikprress.org/index.php/JAPSI/article/view/4239/3971
 
Rights Copyright (c) 2018 © Copyright International Knowledge Press. All rights reserved.
 

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