Squeezing Impact Forces of the Deformation on a Cylindrical Roller

2012 ◽  
Vol 229-231 ◽  
pp. 723-726
Author(s):  
I. K. Beisembetov ◽  
Y. N. Oteny ◽  
O. P. Muraviev ◽  
M. R. Sikhimbayev ◽  
B. N. Absadykov ◽  
...  
Keyword(s):  
Computer Simulation ◽  
Plastic Deformation ◽  
Contact Zone ◽  
Elastic Properties ◽  
Experimental Investigations ◽  
Relative Deformation ◽  
Flat Plates ◽  
Elastic Plastic ◽  
Impact Forces ◽  
Cylindrical Roller

The article examines the influence of compressive forces on the deformation of the cylindrical roller. We considered the features of deformation of two cylindrical bodies with identical elastic properties and elastic plastic deformation of the deforming element of the solid parts. Duing the process we calculated deformation of the cylindrical deforming element which is located between the two contracting rigid planar faces of it with a light contact and general deformations. It is shown that the relative deformation of the reels when they are loading does not depend much on the diameter, but depends only on the loading force. It’s produced by computer simulation of compression of a cylindrical roller with two absolutely rigid plates using the software like Pro/E, Solidworks and ANSYS. We obtain the results of experimental investigations of the deformation roller during its compression of flat plates with a hardness of HRC = 65. It was revealed that the deformation roller obtained experimentally is almost identical with the calculated values. It is shown that deformation of the roller shall not exceed two percent of its diameter, and in the calculations determining the parameters of the contact zone can not take into account its deformation.

Relationship between Kinematic Points and Deformable Surface Tension in the Area Contact and Force Deformation in Rolling Roller for Elastic Plastic Surface

2012 ◽  
Vol 622-623 ◽  
pp. 478-483
Author(s):  
Iskander Beisembetov ◽  
Yaraslav Oteny ◽  
O.P. Muraviev ◽  
Muratbay Sikhimbayev ◽  
Bakhyt Absadykov ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Contact Zone ◽  
Front Surface ◽  
Depth Of Penetration ◽  
Elastic Plastic ◽  
Deformable Surface ◽  
Plastic Surface ◽  
Deformation Force ◽  
Plastic Surfaces ◽  
Relationship Of

The article examines the relationship of the kinematics of the deformable surface points with the stresses in the contact zone of deformation and strength rolling clip elastic and plastic surfaces. There is shown the features of deformation of two cylindrical bodies with identical elastic properties of solids and elastic plastic deformation. The features of deformation of the workpiece surface during rolling on the roller surface of the elastic-plastic are determined. A scheme for determining the kinematics of the points of the deformable surface rolling on the cylindrical surface of the roller without slippage are specified. The dependences of the radial and tangential stresses on the front surface of the roller which is resulting voltage changes depending on the half-width of the contact zone at the front of the video shows the main features of the process of elastic-plastic deformation. We present the variation of the efforts of the deformation of the radius and the radius of the roller parts for different values of the depth of penetration and changes in the deformation force on the depth of the introduction of video for different values of the radius of the workpiece.

scholarly journals INFLUENCE OF PLASTIC DEFORMATION OF ADHEREND MATERIAL ON STRESS DISTRIBUTION IN ADHESIVE LAP JOINTS

2017 ◽  
Vol 23 (4) ◽  
pp. 304
Author(s):  
Lucjan Witek
Keyword(s):  
Plastic Deformation ◽  
Yield Stress ◽  
Adhesive Layer ◽  
Lap Joints ◽  
Adhesive Joints ◽  
Experimental Investigations ◽  
Elastic Model ◽  
Element Analysis ◽  
Elastic Plastic ◽  
Linear Elastic

<p class="AMSmaintext">In the engineering analysis of adhesive lap joints the linear-elastic model of adherend material is often used. In some cases, when the joined material has a low yield stress, this assumption causes errors in stress estimation in the adhesive layer or adherend. In this study the results of numerical stress and strain analysis of single lap adhesive joints were presented. In performed analysis both the linear-elastic and the elastic-plastic models of adherend materials were considered. In the first part of the work the mechanical properties of joined material were obtained using the experimental investigations. In the next part of the work the discrete model of joint was created.  The results of nonlinear finite element analysis showed that in the case of joining of materials with low yield stress the plastic deformation in adherend occurs at load much smaller than destructive force of the joint. In this kind of joints the plastic deformation of adherend influences a rapid stress increase in the adhesive layer, at the final stage of loading. This phenomenon causes a decrease of strength of single lap adhesive joints of elastic-plastic materials.</p>

Transient Thermo-Mechanical Plowing Contact Between Rigid Sphere and Elastic-Plastic Sphere

2012 ◽  
Author(s):  
Wenping Song ◽  
Andrey Ovcharenko ◽  
Longqiu Li ◽  
Guangyu Zhang ◽  
Frank E. Talke
Keyword(s):  
Finite Element Analysis ◽  
Plastic Deformation ◽  
Finite Element ◽  
Contact Zone ◽  
Temperature Rise ◽  
Rigid Sphere ◽  
Mechanical Contact ◽  
Element Analysis ◽  
Elastic Plastic ◽  
Plastic Sphere

Transient thermo-mechanical contact between a rigid sphere sliding over an elastic-plastic sphere with a larger radius is studied using finite element analysis. Plastic deformation and temperature rise in the contact zone between the two spheres are investigated.

Friction Force and Stresses Analysis for Contact of Assembled Details

2006 ◽  
Vol 113 ◽  
pp. 334-338
Author(s):  
Z. Dreija ◽  
O. Liniņš ◽  
Fr. Sudnieks ◽  
N. Mozga
Keyword(s):  
Mechanical Properties ◽  
Surface Roughness ◽  
Plastic Deformation ◽  
Friction Force ◽  
Sliding Friction ◽  
Friction Model ◽  
Contact Interface ◽  
Finite Element Program ◽  
Elastic Plastic ◽  
Element Program

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.

A Computer Simulation Approach for Engineering Air-Jet Spun Yarns

1997 ◽  
Vol 67 (3) ◽  
pp. 223-230 ◽  
Author(s):  
Rangaswamy Rajamanickam ◽  
Steven M. Hansen ◽  
Sundaresan Jayaraman
Keyword(s):  
Computer Simulation ◽  
Computer Simulations ◽  
Fiber Length ◽  
Experimental Investigations ◽  
Simulation Approach ◽  
Air Jet ◽  
Fiber Fineness ◽  
Spun Yarns ◽  
Yarn Count ◽  
Wrap Angle

A computer simulation approach for engineering air-jet spun yarns is proposed, and the advantages of computer simulations over experimental investigations and stand-alone mathematical models are discussed. Interactions of the following factors in air-jet spun yarns are analyzed using computer simulations: yarn count and fiber fineness, fiber tenacity and fiber friction, fiber length and fiber friction, and number of wrapper fibers and wrap angle. Based on the results of these simulations, yarn engineering approaches to optimize strength are suggested.

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

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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