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Boundary Element Model for Nonlinear Fractional-Order Heat Transfer in Magneto-Thermoelastic FGA Structures Involving Three Temperatures
[chapter]
2019
Mechanics of Functionally Graded Materials and Structures [Working Title]
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So, we propose a new boundary element model for the solution of general and complex problems associated with this theory. ...
The numerical results also confirm the validity and accuracy of our proposed model. ...
Transient magneto-
thermo-elastic stresses in an anisotropic
viscoelastic solid with and without a
moving heat source. ...
doi:10.5772/intechopen.88255
fatcat:hwtzsthiq5fw7mpbadu6fvvgzy
A 2-D Drbem for Generakized Magneto-Thermo-Viscoelastic Transient Response of Rotating Functionally Graded Aaisotropic Thick Strip
2013
International Journal of Engineering and Technology Innovation
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A numerical model based on the dual reciprocity boundary element method (DRBEM) is extended to study the generalized magneto thermo-viscoelastic transient response of rotating thick strip of functionally ...
The accuracy of the proposed method was examined and confirmed by comparing to the obtained results with those known before. ...
with one relaxation time and the Fourier's heat conduction equation is modified. ...
doaj:1b99f6ffb3f94e13bc1706d724297363
fatcat:rskwsqauxnclhjdvhsrydmx7va
Transient Heat Conduction of Variable Stiffness Composite Laminate
2010
Journal of thermal stresses
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Tao Ren
15:30 Uncoupled quasi-steady thermoelastic stresses in
semi-space heated by surface point-like heat source
R. V. Goldstein and V.A. ...
Li
Uncoupled quasi-steady
thermoelastic stresses
in semi-space heated by
surface point-like heat
source; R.V. Goldstein,
V.A. ...
doi:10.1080/01495730903454579
fatcat:skuktxowp5hexfzoebmxgu6tna
Computation of thermo-elastic deformations on machine tools a study of numerical methods
2016
Production Engineering
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Finally, the paper concludes with a classification of the usability of the methods in real-time control and optimization tasks. ...
Now for further advances, especially a detailed knowledge about the thermo-elastic behavior is needed, because the nowadays still existing deficits are mainly related to this. ...
Acknowledgments The authors thank the German Research Foundation for funding this work within the CRC/TR 96 and ZIH for the provided computing resources. ...
doi:10.1007/s11740-016-0674-7
fatcat:k74xfj3nk5g3tcegi24nkpx72e
Challenges in Thermo-mechanical Analysis of Friction Stir Welding Processes
2016
Archives of Computational Methods in Engineering
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As a result, the analysis can deal with complex (non-cylindrical) pin-shapes and the extremely large deformation of the material at the HAZ without requiring any remeshing or remapping tools. ...
A fully coupled thermo-mechanical framework is proposed for the computational modeling of the FSW processes proposed both at local and global level. ...
If the global structure is considered, the size of the heat source is of the same dimension than the element size generally used for a thermo-mechanical analysis. ...
doi:10.1007/s11831-015-9163-y
fatcat:tbgjnx5rondvtgtd4nty22nini
Effect Of Shell Dimensions On Buckling Behavior And Entropy Generation Of Thin Welded Shells
2011
Zenodo
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In this work, a 3-D thermo elastic-viscoplastic finite element analysis technique is applied to evaluate the effect of shell dimensions on buckling behavior and entropy generation of welded thin shells ...
Also, in the present work, the approximated longitudinal transient stresses which produced in each time step, is applied to the 3D-eigenvalue analysis to ratify predicted buckling time and corresponding ...
However, uncoupled thermo-mechanical analysis is used to save computational time. The mechanical properties are dependent on the temperature history as listed in Table II .
VII. ...
doi:10.5281/zenodo.1075285
fatcat:rthr5orkivft7ir55x6j4n5dme
Challenges to Be Tackled in the Computational Modeling and Numerical Simulation of FSW Processes
2019
Metals
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The computational modeling and numerical simulation of Friction Stir Welding (FSW) processes is an extremely challenging task due to the highly nonlinear and coupled nature of the physical problem and ...
If the global structure is considered (global level analysis), the size of the heat source is of the same dimension than the element size generally used for a thermo-mechanical analysis. ...
In this case, a moving heat power source is applied to a control volume representing the actual HAZ at each time-step of the analysis. ...
doi:10.3390/met9050573
fatcat:htmsvaw4afezxapsixudnpjaee
Integral representation for three-dimensional steady state size-dependent thermoelasticity
[article]
2017
arXiv
pre-print
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Boundary element methods provide powerful techniques for the analysis of problems involving coupled multi-physical response, especially in the linear case for which boundary-only formulations are possible ...
Then, an integral equation formulation for the three-dimensional isotropic case is derived, along with the corresponding singular infinite space fundamental solutions or kernel functions. ...
Many articles have also appeared that employ boundary element methods to solve size-dependent elastic and thermoelastic problems within the framework of other non-classical theories, such as micropolar ...
arXiv:1704.02318v1
fatcat:csrahyypyfebnl5hbpdkl5wtpe
Analysis of Thermo-Piezoelectricity Problems by Meshless Method
2010
Acta Mechanica Slovaca
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Analysis of Thermo-Piezoelectricity Problems by Meshless Method In this paper meshless method based on the local Petrov-Galerkin approach is pesented for the solution of boundary value problems for coupled ...
Transient dynamic governing equations are considered in analysis of the problems. Material properties of piezoelectric materials are influenced by a thermal field. ...
ACKNOWLEDGEMENT The authors gratefully acknowledge the support by the Slovak Science and Technology Assistance Agency registered under number APVV-0427-07 and the Slovak Grant Agency VEGA-2/0039/09. ...
doi:10.2478/v10147-011-0030-z
fatcat:xnq6gjojrjcutikrjghibfv3me
Thermo-elastodynamic response of a spherical cavity in saturated poroelastic medium
2010
Applied Mathematical Modelling
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Giraud et al. [20] analysed the case of a heat source that decreases exponentially with time by considering a low-permeability clay for nuclear waste disposal. ...
As a consequence, a number of problems arises dealing with, among other issues, statics and strength, fluid flow and heat conduction, and dynamics. ...
Acknowledgements The research was supported by National Natural Science Foundation of China (No. 40902089), project of Science and Technology 2008C31030 and Natural Science Foundation Y107637 of Zhengjiang ...
doi:10.1016/j.apm.2009.10.031
fatcat:7z6y4negrfdodcqkhsa6xqp4ty
A numerical algorithm for the full coupling of mechanical deformation, thermal deformation and phase transformation in surface grinding
2000
Computational Mechanics
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This paper presents an algorithm to analyze the residual stresses induced by the full coupling of all the above causes of residual stresses involving signi®cant temperature-and microstructure-dependent ...
List of symbols Cr 700 cooling rate at 700 C (degree/h) c speci®c heat capacity per unit volume ...
space
Fig. 3 . 3 Intersection of elastic stress increments with yielding in uniaxial tension
Fig. 5 . 5 The consistent nodal forces and FEM boundary mesh sizeFig. 4a±d. ...
doi:10.1007/s004660000162
fatcat:3rihldm7ofaubij754ru6vb2um
A Variational Approach to Modeling Coupled Thermo-Mechanical Nonlinear Dissipative Behaviors
[chapter]
2013
Advances in Applied Mechanics
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This approach allows to reformulate boundary-value problems of coupled thermo-mechanics as an optimization problem of an energy-like functional. ...
A particular focus is taken on thermo-visco-elasticity and thermo-visco-plasticity. ...
Acknowledgements References
ACKNOWLEDGEMENTS Part of this work was funded by the Re´gion des Pays de la Loire (under project VAMPS). ...
doi:10.1016/b978-0-12-396522-6.00002-5
fatcat:rtbl7czro5fendpssimwrp6uba
A direct finite element method study of generalized thermoelastic problems
2006
International Journal of Solids and Structures
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By using the principle of virtual work, the finite element equations corresponding to the generalized thermoelasticity with two relaxation times (i.e., the G-L theory) are derived. ...
The results demonstrate that the developed method can faithfully predict the deformation of the structure and most importantly the delicate second sound effect of heat conduction in both one and two-dimensional ...
Acknowledgments This research was supported by the National Natural Science Foundation of China (10132010 and 10472089). ...
doi:10.1016/j.ijsolstr.2005.06.071
fatcat:tleahpabnjef5gr2kh54uo3svq
Survey of computer programs for heat transfer analysis
1986
Finite elements in analysis and design
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dependent,
time dependent properties
and boundary
conditions. ...
heat generation,
volumetric,
time dependent
,
l
Surface flux,
time dependent
0 Contact co.efficient,
,constant
l l
Convective
boundaries
with and without
fluid
flow, natural
and forced ...
doi:10.1016/0168-874x(86)90030-2
fatcat:jyixz7y63be6te7tnksrx2y42m
Thermal Shock Problem of Generalized Thermoelasticity for an Infinitely Long Annular Cylinder with Variable Thermal Conductivity
2007
Computational Methods in Science and Technology
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In this paper, a general finite element model is proposed to analyze transient phenomena in thermoelastic model in the context of the theory of generalized thermoelasticity with one relaxation time with ...
An application of an infinitely long annular cylinder was studied, where the inner surface is traction free and subjected to thermal shock, while the outer surface is traction free and thermally isolated ...
Due to symmetry, the problem is one-dimensional with all the functions considered depending on the radial distance r and the time t where 1 2 . ...
doi:10.12921/cmst.2007.13.02.95-100
fatcat:m3eunb55gvhmfcqs7i44zqjqja
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