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Thermal stress under high-power surface heating

Description: Estimates are made of thermal stress in a wall subjected to transient heating on one side. A detailed calculation is carried out for a flat plate heated on one face and cooled on the other. These examples furnish a guide to power absorption limits for surfaces in high-power plasma devices. Figures of merit are tabulated for various possible materials. (auth)
Date: November 1, 1973
Creator: Schivell, J. F. & Grove, D. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Two Factors Influencing Temperature Distributions and Thermal Stresses in Structures

Description: "The influence of joint conductivity and internal radiation on temperature distribution and thermal stresses has been discussed. Joints of poor conductivity can occur in normal fabrication procedure and greatly alter temperature distributions and increase thermal stresses. On the other hand, internal radiation tends to make the temperature distributions more uniform and thereby relieves thermal stress" (p. 1).
Date: June 1957
Creator: Brooks, William A., Jr.; Griffith, George E. & Strass, H. Kurt
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analysis of elastic thermal stresses in thin plate with spanwise and chordwise variations of temperature and thickness

Description: From Introduction: "The object of the present paper is to present an approximate method for calculating accurately the thermal stresses in a thin plate with both chordwise and spanwise variations in temperature and chordwise but restricted spanwise variations in thickness."
Date: November 1956
Creator: Mendelson, Alexander & Hirschberg, Marvin
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Temperature Gradients in the Wing of a High-Speed Airplane During Dives From High Altitudes

Description: Report presenting flight testing to investigate the temperature gradients in the wing structure of a typical high-speed fighter airplane caused by rapid changes in surface temperatures. Reports were carried out using dive testing and measured at multiple points on the airplane.
Date: July 1948
Creator: Tendeland, Thorval & Schlaff, Bernard A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A biharmonic relaxation method for calculating thermal stress in cooled irregular cylinders

Description: A numerical method was developed for calculating thermal stresses in irregular cylinders cooled by one or more internal passages. The use of relaxation methods and elementary methods of finite differences was found to give approximations to the correct values when compared with previously known solutions for concentric circular cylinders possessing symmetrical and asymmetrical temperature distributions.
Date: May 10, 1951
Creator: Holms, Arthur G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Temperatures, thermal stress, and shock in heat-generating plates of constant conductivity and of conductivity that varies linearly with temperature

Description: Report presenting working formulas for the steady-state temperatures and thermal stress in heat-generating infinite plates of constant conductivity. Of all planes in the plate, the plate surfaces are always under the greatest tension, and the midplane is under the greatest compression.
Date: July 1953
Creator: Manson, S. V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Experimental and theoretical determination of thermal stresses in a flat plate

Description: Report determining the thermal stresses induced in a flat, rectangular, 75S-T6 aluminum-alloy plate by nonuniform heating both experimentally and theoretically. Results regarding the temperature distribution, longitudinal direct stresses, shear stresses, transverse direct stresses, and agreement between theory and experiment are provided.
Date: August 1952
Creator: Heldenfels, Richard R. & Roberts, William M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Behavior of materials under conditions of thermal stress

Description: A review is presented of available information on the behavior of brittle and ductile materials under conditions of thermal stress and thermal shock. For brittle materials, a simple formula relating physical properties to thermal-shock resistance is derived and used to determine the relative significance of two indices currently in use for rating materials. For ductile materials, thermal-shock resistance depends upon the complex interrelation among several metallurgical variables which seriousl… more
Date: 1954
Creator: Manson, S. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Preliminary Shield Design for the 50 MW Commercial Reactor

Description: The investigation in this report were conducted to determine the required shielding to reduce radiation to a workable level, to determine the heeating in the various core components so coolant flow rates could be determined, and to determine the thermal stress and temperature distribution in the structural and load bearing members.
Date: unknown
Creator: Bagley, R. O., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A biharmonic relaxation method for calculating thermal stress in cooled irregular cylinders

Description: Report presenting a numerical method for calculating thermal stresses in irregular cylinders cooled by one or more internal passages. The use of relaxation methods and elementary methods of finite differences was found to give approximations to correct values when compared with previously known solutions for concentric circular cylinders with symmetrical and asymmetrical temperature distributions.
Date: August 1951
Creator: Holms, Arthur G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Temperature Distribution and Thermal Stress in Reactor Core APPR-1

Description: The study was conducted to determine the adequacy of the fuel element structural design of APPR-1. The results obtained lead to the conclusion that the element design is structurally sound for all normal operating conditions from the standpoint of thermal stress.
Date: unknown
Creator: Berggren, W. P. & Kroeger, H. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Some effects of joint conductivity on the temperatures and thermal stresses in aerodynamically heated skin-stiffener combinations

Description: Report presenting an analysis of temperatures and thermal stresses in typical skin-stiffener combinations of winglike structures subjected to aerodynamic heating using an electronic differential analyzer. Variations were made in aerodynamic heat-transfer parameter, in a joint conductivity parameter, and in the ratio of skin width to skin thickness. Results regarding data obtained,an illustrative example, temperature and stress ratios, and peak stress ratios and temperature-ratio drop across joi… more
Date: June 1956
Creator: Griffith, George E. & Miltonberger, Georgene H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effects of temperature distribution and elastic properties of materials on gas-turbine-disk stresses

Description: From Summary: "Calculations were made to determine the influence of changes in temperature distribution and in elastic material properties on calculated elastic stresses for a typical gas-turbine disk. Severe temperature gradients caused thermal stresses of sufficient magnitude to reduce the operating safety of the disk. Small temperature gradients were found to be desirable because they produced thermal stresses that subtracted from the centrifugal stresses in the region of the rim."
Date: March 29, 1947
Creator: Holms, Arthur G. & Faldetta, Richard D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Thermal Stresses In A Liquid Hydrogen Transfer Line

Description: A variable-length vacuum-insulated liquid hydrogen transfer line is described. The vacuum system is semi-permanent, and segments of the line are assembled with only threaded vacuum fittings. Thermal stress calculations are presented for a statically indeterminate union coupling.
Date: March 20, 1960
Creator: Pope, William L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The combinations of thermal and load stresses for the onset of permanent buckling in plates

Description: A simple and practical method for evaluating the onset of permanent buckling in plates in the presence of combined thermal and compressive load stresses is outlined. A particular application of the method shows reasonable agreement with tests of 17-7 PH stainless-steel square tubes. The results indicate that the compressive load stress which the plate can support at the onset of permanent buckling is substantially reduced as the temperature difference of the plate and adjoining members increase… more
Date: June 1957
Creator: Zender, George W. & Pride, Richard A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Elastic Solution for the Thermal Stresses in a Finite Solid Cylinder Fuel Element

Description: The heat generated by reactor fuel elements create thermal gradiants which cause thermal stresses of considerable magnitude. An elastic solution for these thermal stresses can be calculated with the equations given in Timoshenko's and Goodier's book (1) on elasticity if the fuel element is assumed infinite in length. An exact elastic solution for a finite cylindrical fuel element is given in this report in order to evaluate the effects of fuel element length on the thermal stresses and the effe… more
Date: October 12, 1956
Creator: Cadwell, J. J. & Merckx, K. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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