NEA-0340 COMET.

COMET, Mechanical and Thermal Stress in Fuel Element Clad

NAME OR DESIGNATION OF PROGRAM, COMPUTER, NATURE OF PHYSICAL PROBLEM SOLVED, SOLUTION, RESTRICTIONS, TYPICAL RUNNING TIME, FEATURES, AUXILIARIES, STATUS, REFERENCES, REQUIREMENTS, LANGUAGE, OPERATING SYSTEM, OTHER RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHOR, MATERIAL, CATEGORIES

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1. NAME OR DESIGNATION OF PROGRAM: COMET.

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2. COMPUTERS

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Program name	Package id	Status	Status date
COMET	NEA-0340/01	Tested	01-MAR-1972

Machines used:

Package ID	Orig. computer	Test computer
NEA-0340/01	IBM 360 series	IBM 360 series

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3. NATURE OF PHYSICAL PROBLEM SOLVED

By the code COMET, a method has been established to calculate mechanical and thermal stresses in a cross section of fuel element claddings in a vertical pressure tube reactor, taking into account circumferential and radial temperature distributions. Axial charges are evaluated by different schemes, according to the fuel elements structure and the coolant circulation direction.

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4. METHODS: METHOD OF SOLUTION

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

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6. TYPICAL RUNNING TIME: 1 min.

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7. UNUSUAL FEATURES: UNUSUAL FEATURES OF THE PROGRAM

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8. RELATED OR AUXILIARY PROGRAMS: RELATED AND AUXILIARY PROGRAMS

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9. STATUS

Package ID	Status date	Status
NEA-0340/01	01-MAR-1972	Tested at NEADB

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10. REFERENCES

NEA-0340/01, included references:

- M. Fantozzi:
  Codice COMET, calcolo delle tensioni meccaniche e termiche nelle
  guaine di un elemento combustibile
  report EUR 4049I (1968).

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11. HARDWARE REQUIREMENTS: MACHINE REQUIREMENTS

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12. PROGRAMMING LANGUAGE(S) USED

Package ID	Computer language
NEA-0340/01	FORTRAN-IV

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13. SOFTWARE REQUIREMENTS: OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED

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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

ANY OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

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15. NAME AND ESTABLISHMENT OF AUTHOR

          Joint Research Centre
          21020 Ispra (Varese)
          Italy.

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16. MATERIAL AVAILABLE

NEA-0340/01

File name	File description	Records
NEA0340_01.001	SOURCE PROG.+INPUT DATA	534
NEA0340_01.002	PRINTED OUTPUT	1452

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17. CATEGORIES

I. Deformation and Stress Distributions, Structural Analysis and Engineering Design Studies

Keywords: fuel-cladding interaction, mechanical properties, thermal stresses.