Stress-Focusing Effect in a Solid Sphere Caused by Instantaneous Uniform Heating

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概要

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• When a solid sphere is subjected suddenly to a uniform temperature rise over its cross section, a stress wave occurs at the surface the moment thermal impact is applied. The stress wave at the surface proceeds radially inward to the center of the sphere. The wave may accumulate at the center and give rise to very large stress magnitudes, even though the initial thermal stress is relatively small. This phenomenon is called the stress-focusing effect. This paper analyzes the effects of these waves precisely using the ray theory. The numerical results give clear indications of a stress-focusing effect in spheres.

• 一般社団法人日本機械学会の論文
• 1990-01-15

著者

• Hata Toshiaki

  Faculty Of Education Shizuoka University

関連論文

• Transient Thermoelastic Problem for a Transversely Anisotropic Hollow Sphere with Temperature-Dependent Properties
• Transient Thermoelastic Problem for a Transversely Anisotropic Hollow Cylinder with Temperature-Dependent Properties
• A Dynamic Elasto/Viscoplastic Solution for a Thick-Walled Spherical Container Subjected to Impulsive Loading : Solid-Mechanics, Strength of Materials
• Stress-Focusing Effect in a Transversely Isotropic Cylinder Caused by Instantaneous Heating
• Stress-Focusing Effect in a Solid Sphere Caused by Instantaneous Uniform Heating
• Determination of Transient Responses of a Thick-walled Transversely Isotropic Spherical Shell by the Ray Theory

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