Non-Linear Thermal Stress Analysis for Nuclear Power Plant by Finite Element Method

Item

Title
Non-Linear Thermal Stress Analysis for Nuclear Power Plant by Finite Element Method
Description
This paper presents the non-linear thermal stress analysis for the nuclear power plant by the finite element method. The heat equilibrium equation becomes the non-linear differential equation when the thermal conductivity is dependent on the temperature of the body. And the heat flow due to the radiation is in proportion to the fourth power of the absolute temperature by Stafen-Boltzmann law. The finite element method has proven very successful in analyzing these non-linear problems.

Besides, there are two types of non-linearity as far as the stress analysis is concerned. One is the material non-linearity problem and the other is the geometrical non-linearity problem. The material non-linearity problem, namely the elastic-plastic analysis, is expected in the case of designing the nuclear power plant.

The non-linear heat problems and the material non-linearity problem can be analyzed by the same
nodal points and the same elements with application of the finite element method.
Creator
Mizumachi, Wataru
Abstract
This paper presents the non-linear thermal stress analysis for the nuclear power plant by the finite element method. The heat equilibrium equation becomes the non-linear differential equation when the thermal conductivity is dependent on the temperature of the body. And the heat flow due to the radiation is in proportion to the fourth power of the absolute temperature by Stafen-Boltzmann law. The finite element method has proven very successful in analyzing these non-linear problems.

Besides, there are two types of non-linearity as far as the stress analysis is concerned. One is the material non-linearity problem and the other is the geometrical non-linearity problem. The material non-linearity problem, namely the elastic-plastic analysis, is expected in the case of designing the nuclear power plant.

The non-linear heat problems and the material non-linearity problem can be analyzed by the same
nodal points and the same elements with application of the finite element method.
Corporate Author
Toshiba Electric Co., Atomic Power Division, Tokyo, Japan
Report Number
AFFDL TR 71-160 p. 773-790
Report Availability
Full text available
Publisher
Wright-Patterson Air Force Base, OH : Air Force Flight Dynamics Laboratory, Air Force Systems Command and Air Force Institute of Technology, Air University
Date
1973
Type
article
Date Issued
1973-12
Provenance
Bombardier/Aero
Distribution Classification
1
Distribution Conflict
No
DTIC Record Exists
No
Format
1 online resource (17 pages) : ill.
Extent
17
Identifier
AD0785968
Is Part Of
Proceedings of the Third Conference on Matrix Methods in Structural Mechanics: Proceedings of the Conference held at Wright-Patterson Air Force Base, Ohio 19-21 October 1971
Media
AFFDLTR71-160article26.pdf

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Items with "Has Part: Non-Linear Thermal Stress Analysis for Nuclear Power Plant by Finite Element Method"
Title Class
Proceedings of the Third Conference on Matrix Methods in Structural Mechanics: Proceedings of the Conference held at Wright-Patterson Air Force Base, Ohio 19-21 October 1971