Computer Programs

NEA-0535 GOLIA-RK.

NEA-0535 GOLIA-RK.

GOLIA-RK, Structure Stress for Isotropic Materials with Creep and Temperature Fields

NAME OR DESIGNATION OF PROGRAM, COMPUTER, NATURE OF PHYSICAL PROBLEM SOLVED, METHOD OF SOLUTION, RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM, TYPICAL RUNNING TIME, FEATURES, AUXILIARIES, STATUS, REFERENCES, MACHINE REQUIREMENTS, LANGUAGE, OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED, OTHER RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHOR, MATERIAL, CATEGORIES

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1. NAME OR DESIGNATION OF PROGRAM: GOLIA-RK.

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2. COMPUTERS

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Program name	Package id	Status	Status date
GOLIA-RK	NEA-0535/01	Tested	01-DEC-1976

Machines used:

Package ID	Orig. computer	Test computer
NEA-0535/01	IBM 370 series	IBM 370 series

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3. NATURE OF PHYSICAL PROBLEM SOLVED

Stress analysis of complex structures in presence of creep, dimensional changes and thermal field. Plane stress, plane strain, generalized plane strain and axisymmetric problems can be solved. The material is assumed to be either isotropic or transversely isotropic. Any laws of material behaviour can easily be incorporated by the user (see subroutines WIGNER and CLAW).

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4. METHOD OF SOLUTION

Finite element method using triangular elements with linear local fields. The equations for the displacements are solved by Choleski's method. An algorithm is incorporated to calculate automatically the successive time steps in a creep problem.

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

Maximum number of elements is 700. Maximum number of nodal points is 400. The indexes of two adjacent nodes are not permitted to differ by more than 19.

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6. TYPICAL RUNNING TIME: Between 5 and 15 mins.

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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-0535/01	01-DEC-1976	Tested at NEADB

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10. REFERENCES

- J.Donea and S.Giuliani:
  'Comportement mecanique de structures complexes en presence de fluage, d'un champ de temperature et de variations de dimensions dues a l'irradiation.'
  EUR Report 4629.F (1971).
- J.Donea and S.Giuliani:
  'GOLIA, A Computer Program for the Stress Analysis of Complex Structures in Presence of Creep, Dimensional Changes and a Thermal    Field (A User's Manual)
  Category 17, Communication 2728. (1971).

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11. MACHINE REQUIREMENTS: Between 300 and 400k bytes.

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12. PROGRAMMING LANGUAGE(S) USED

Package ID	Computer language
NEA-0535/01	FORTRAN-IV

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13. OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED: IBM 360 OS.

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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

      J. Donea and S. Giuliani
      Joint Research Centre
      21020 - Ispra
      Italy

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16. MATERIAL AVAILABLE

NEA-0535/01

File name	File description	Records
NEA0535_01.001	INFORMATION	2
NEA0535_01.002	SOURCE FORTRAN IV	1653
NEA0535_01.003	SUBROUTINES CLAW & WIGNER	22
NEA0535_01.004	SAMPLE PROBLEM INPUT	66
NEA0535_01.005	SAMPLE PROBLEM OUTPUT	1561

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17. CATEGORIES

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

Keywords: creep, finite element method, strains, stress analysis.