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Erschienen in:
2017 | OriginalPaper | Buchkapitel
15. Thermal Stress
verfasst von : Bahman Zohuri
Erschienen in: Thermal-Hydraulic Analysis of Nuclear Reactors
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Abstract
A temperature changes cause the body to expand or contract. If temperature deformation is permitted to occur freely, no load or stress will be induced in the structure. In some cases where temperature deformation is not permitted, an internal stress is created. The internal stress created is termed as thermal stress. This deformation can induce stresses in the material and this is when a solid material is subjected to a temperature differential, the structure of the material changes and causes a volumetric expansion. Thermal stresses must often be accounted for and avoided, for example in the construction of railways, roads, or copper interconnects used in microelectronic devices [1–3].