Homotopy Perturbation Method and Variational Iteration Method for Harmonic Waves Propagation in Nonlinear Magneto-Thermoelasticity with Rotation

<table>Variations of the displacement <svg height="10.925" id="M229" style="vertical-align:-3.13504pt" version="1.1" viewbox="0 0 13.625 10.925" width="13.625" xmlns="http://www.w3.org/2000/svg">
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<g transform="translate(72,-63.26)">
<text transform="matrix(1,0,0,-1,-71.95,66.44)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑢</tspan>
</text>
<text transform="matrix(1,0,0,-1,-66.02,63.31)">
<tspan style="font-size: 8.75px; " x="0" y="0">1</tspan>
</text>
</g>
</g>
</svg> and temperature <svg height="14.475" id="M230" style="vertical-align:-3.13504pt" version="1.1" viewbox="0 0 13.7875 14.475" width="13.7875" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,14.475)">
<g transform="translate(72,-60.42)">
<text transform="matrix(1,0,0,-1,-71.95,63.6)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝜃</tspan>
</text>
<text transform="matrix(1,0,0,-1,-65.9,60.47)">
<tspan style="font-size: 8.75px; " x="0" y="0">1</tspan>
</text>
</g>
</g>
</svg> for various values of the axis <svg height="7.1624999" id="M231" style="vertical-align:-0.11285pt" version="1.1" viewbox="0 0 8.7250004 7.1624999" width="8.7250004" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,7.1625)">
<g transform="translate(72,-66.27)">
<text transform="matrix(1,0,0,-1,-71.95,66.44)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑥</tspan>
</text>
</g>
</g>
</svg> and magnetic field <svg height="10.725" id="M232" style="vertical-align:-3.13504pt" version="1.1" viewbox="0 0 14.6125 10.725" width="14.6125" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.725)">
<g transform="translate(72,-63.42)">
<text transform="matrix(1,0,0,-1,-71.95,66.6)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝜎</tspan>
</text>
<text transform="matrix(1,0,0,-1,-65.24,63.47)">
<tspan style="font-size: 8.75px; " x="0" y="0">1</tspan>
</text>
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</g>
</svg> when <svg height="10.9125" id="M233" style="vertical-align:-0.17555pt" version="1.1" viewbox="0 0 43.9375 10.9125" width="43.9375" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.9125)">
<g transform="translate(72,-63.27)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑡</tspan>
<tspan style="font-size: 12.50px; " x="7.37677" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="19.417158" y="0">0</tspan>
<tspan style="font-size: 12.50px; " x="25.668659" y="0">.</tspan>
<tspan style="font-size: 12.50px; " x="28.794409" y="0">1</tspan>
</text>
</g>
</g>
</svg>, <svg height="10.9125" id="M234" style="vertical-align:-0.17555pt" version="1.1" viewbox="0 0 50.674999 10.9125" width="50.674999" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.9125)">
<g transform="translate(72,-63.27)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">Ω</tspan>
<tspan style="font-size: 12.50px; " x="12.765563" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="24.805952" y="0">0</tspan>
<tspan style="font-size: 12.50px; " x="31.057451" y="0">.</tspan>
<tspan style="font-size: 12.50px; " x="34.183201" y="0">1</tspan>
</text>
</g>
</g>
</svg>, <svg height="14.6" id="M235" style="vertical-align:-3.13504pt" version="1.1" viewbox="0 0 53.537498 14.6" width="53.537498" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,14.6)">
<g transform="translate(72,-60.32)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝜎</tspan>
</text>
<text transform="matrix(1,0,0,-1,-65.24,60.37)">
<tspan style="font-size: 8.75px; " x="0" y="0">2</tspan>
</text>
<text transform="matrix(1,0,0,-1,-56.89,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="12.027886" y="0">0</tspan>
<tspan style="font-size: 12.50px; " x="18.279387" y="0">.</tspan>
<tspan style="font-size: 12.50px; " x="21.405136" y="0">1</tspan>
</text>
</g>
</g>
</svg>.</table>

Mathematical Problems in Engineering

fig17

Figure 17

Figure 17: Homotopy Perturbation Method and Variational Iteration Method for Harmonic Waves Propagation in Nonlinear Magneto-Thermoelasticity with Rotation 

Figure 17 | Homotopy Perturbation Method and Variational Iteration Method for Harmonic Waves Propagation in Nonlinear Magneto-Thermoelasticity with Rotation 