Thermal Stress

thermal stress

[′thər·məl ′stres] (mechanics) Mechanical stress induced in a body when some or all of its parts are not free to expand or contract in response to changes in temperature.

Thermal stress

A stress produced by thermal movement that is resisted by the building; if the thermal stresses are higher than the capacity of the materials to resist them, expansion or contraction joints are required.

Thermal Stress

(Russian, temperaturnoe napriazhenie), a stress produced in a body as a result of a nonuniform distribution of temperature in different parts of the body and some restriction on the possibility of thermal expansion or contraction imposed by adjacent parts of the body or by other bodies surrounding the body in question. An example of thermal stresses is the tensile stresses produced in a wire stretched between fixed supports as the wire is cooled. Thermal stresses can cause the failure of machine components, buildings, and structural members. Expansion joints and other means, including gaps between successive lengths of rails, gaps between the blocks of a dam, and rollers on bridge supports, are used to prevent such failures.

thermal stress, temperature stress

Stress introduced by uniform or nonuniform temperature change in a structure or material which is constrained against expansion or contraction.

单词	thermal stress
释义	DictionarySeethermal Thermal Stress thermal stress [′thər·məl ′stres] (mechanics) Mechanical stress induced in a body when some or all of its parts are not free to expand or contract in response to changes in temperature. Thermal stress A stress produced by thermal movement that is resisted by the building; if the thermal stresses are higher than the capacity of the materials to resist them, expansion or contraction joints are required. Thermal Stress (Russian, temperaturnoe napriazhenie), a stress produced in a body as a result of a nonuniform distribution of temperature in different parts of the body and some restriction on the possibility of thermal expansion or contraction imposed by adjacent parts of the body or by other bodies surrounding the body in question. An example of thermal stresses is the tensile stresses produced in a wire stretched between fixed supports as the wire is cooled. Thermal stresses can cause the failure of machine components, buildings, and structural members. Expansion joints and other means, including gaps between successive lengths of rails, gaps between the blocks of a dam, and rollers on bridge supports, are used to prevent such failures. thermal stress, temperature stress Stress introduced by uniform or nonuniform temperature change in a structure or material which is constrained against expansion or contraction.
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