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Computers and Concrete
  Volume 19, Number 6, June 2017 , pages 701-710
DOI: https://doi.org/10.12989/cac.2017.19.6.701
 


Thermoelastic beam in modified couple stress thermoelasticity induced by laser pulse
Rajneesh Kumar and Shaloo Devi

 
Abstract
    In this study, the thermoelastic beam in modified couple stress theory due to laser source and heat flux is investigated. The beam are heated by a non-Guassian laser pulse and heat flux. The Euler Bernoulli beam theory and the Laplace transform technique are applied to solve the basic equations for coupled thermoelasticity. The simply-supported and isothermal boundary conditions are assumed for both ends of the beam. A general algorithm of the inverse Laplace transform is developed. The analytical results have been numerically analyzed with the help of MATLAB software. The numerically computed results for lateral deflection, thermal moment and axial stress due to laser source and heat flux have been presented graphically. Some comparisons have been shown in figures to estimate the effects of couple stress on the physical quantities. A particular case of interest is also derived. The study of laser-pulse find many applications in the field of biomedical, imaging processing, material processing and medicine with regard to diagnostics and therapy.
 
Key Words
    thermoelastic beam; modified couple stress theory; laser-pulse; classical coupled theory; heat flux
 
Address
Rajneesh Kumar: Department of Mathematics, Kurukshetra University, Kurukshetra, India
Shaloo Devi: Department of Mathematics & Statistics, Himachal Pradesh University, Shimla, India
 

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