Three-dimensional transient thermodynamic analysis of laser surface treatment for a fiber laminated plate with a coating layer

[Display omitted] •Adding additional fiber increases the vibration frequency of the CFML structure.•Rate of decrease for mass is faster than stiffness with the increasing of layers.•Great heat conduction coefficient causes large axial force related to temperature. Based on the method of separation o...

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Bibliographic Details
Published in:International journal of heat and mass transfer 2018-03, Vol.118, p.671-685
Main Authors: Jiang, Hao-Jie, Liang, Li-Hua, Xiao, Yi-Li, Chen, Jun, Xu, Yang-Jian, Wang, Xiao-Gui
Format: Article
Language:English
Subjects:
Coating
Conduction heating
Conductive heat transfer
Equivalent temperature method
Fiber lasers
Fiber metal laminated plate with a coating layer
Fiber-metal laminates
Finite difference method
Heat conductivity
Heat transfer
Laser surface treatment
Mathematical analysis
Newmark method
Plates (structural members)
Shear stress
Surface treatment
Temperature distribution
Thermodynamics
Three dimensional analysis
Three-dimensional transient thermodynamic analysis
Vibration
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Summary:[Display omitted] •Adding additional fiber increases the vibration frequency of the CFML structure.•Rate of decrease for mass is faster than stiffness with the increasing of layers.•Great heat conduction coefficient causes large axial force related to temperature. Based on the method of separation of variables and equivalent temperature method, three-dimensional transient temperature field for a fiber metal laminated (FML) plate with a coating layer (total structure is named as a CFML structure) during laser surface treatment process is firstly obtained. Subsequently, the three-dimensional transient thermodynamic governing equations for the CFML structure under such laser work condition are solved by applying the finite difference method and Newmark method in space domain and time domain, respectively. The aim of this research is to give the analytical solution of three-dimensional transient temperature field for CFML structure under laser surface treatment technology, understand the influence of number of fiber species, laser moving velocity, number of FML layers and selected coating layer’s heat conduction coefficient on the deflection, normal stress, shear stress and vibration frequency of the CFML structure. Besides, it could guide engineers designing the CFML structure to adapt to hostile laser surface treatment environment.
ISSN:0017-9310
1879-2189
DOI:10.1016/j.ijheatmasstransfer.2017.11.033