THERMAL STRESSES IN PARTIALLY ABSORBING FLAT PLATE DUE TO SUDDEN INTERRUPTION OF STEADY-STATE ASYMMETRIC RADIATION,II: CONVECTIVE COOLING AT FRONT SURFACE |
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| Authors: | J.P. Singh J.I. Frankel J.R. Thomas Jr. D.P.H. Hasselman |
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| Affiliation: | Departments of Materials and Mechanical Engineering , Virginia Polytechnic Institute and State University , Blacksburg, Virginia, 24061 |
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| Abstract: | In Part II of this study the thermal stresses are analyzed in a partially absorbing flat plate, due to a sudden interruption of steady-state asymmetric radiation on the convectively cooled front face. As in the case of Part I, the maximum tensile stresses occur in the rear face. For the optical thickness μa ≥ 0.5, the maximum tensile stress initially rises to a peak and then decreases with time. On the other hand, for μa ≤ 0.5, the stresses decrease monotonically with time. A comparison of the results for the front (Part II) and rear (Part I) cooling indicates that values of the maximum stress are numerically indentical for small values of heat transfer coefficient h, and plate thickness a. Increasing difference in the magnitude of the stresses for the two cases is found with increasing h and a. |
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| Keywords: | Energy not positive definite Spatial behaviour Thermoelastic mixtures Time-harmonic vibrations |
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