last modified: 01-DEC-1977 | catalog | categories | new | search |

NEA-0550 GOMESH.

GOMESH, Finite Elements Structure Plot with Triangular Mesh

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1. NAME OR DESIGNATION OF PROGRAM:  GOMESH.
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2. COMPUTERS
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Program name Package id Status Status date
GOMESH NEA-0550/02 Tested 01-DEC-1977

Machines used:

Package ID Orig. computer Test computer
NEA-0550/02 IBM 370 series IBM 370 series
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3. NATURE OF PHYSICAL PROBLEM SOLVED

Graphical representation of calculations on structures with finite subdivision.
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4. METHOD OF SOLUTION

GOMESH treats meshes with triangular basic elements. The program uses the same punched cards as those required  for the input to the 'STAG' series of stress analysis codes and can  prepare three basic mesh diagrams which differ in their mode of numbering. One objective of using these diagrams is to show up errors in the card deck by making them visually recognisable.
Furthermore, digital tests are made within the program to check that certain requirements have been observed in the production of the lattice. The program 'GOMESH', can provide, superimposed in the graphical representation, stress and temperature values in numerical form, can represent the displacement of the mesh before and after a  specified irradiation time, and give the directions and sense of the principal stresses occurring in the individual elements, in the form of arrows of varying length.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM
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6. TYPICAL RUNNING TIME
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7. UNUSUAL FEATURES: UNUSUAL FEATURES OF THE PROGRAM
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8. RELATED AND AUXILIARY PROGRAMS:  STAG, STAGT, STIGMA
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9. STATUS
Package ID Status date Status
NEA-0550/02 01-DEC-1977 Tested at NEADB
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10. REFERENCES

- J.Draper:
  'A FORTRAN Program for the Graphical Representation of Results of Calculations on Structures With Finite Element Subdivision'
  Dragon Project Technical Note/661 (April 1961).
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11. MACHINE REQUIREMENTS:  Uses the Harwell 'GHOST' plotting system.
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
NEA-0550/02 FORTRAN-IV
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13. OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED:  IBM 370 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. Draper
     OECD High Temperature Reactor Project, Dragon
     AEE Winfrith
     Dorchester, Dorset, U.K.
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16. MATERIAL AVAILABLE
NEA-0550/02
File name File description Records
NEA0550_02.001 INFORMATION 2
NEA0550_02.002 SOURCE PROGRAM-F4-EBCDIC 665
NEA0550_02.003 DUMMY PLOTTING ROUTINES-F4-EBCDIC 40
NEA0550_02.004 SAMPLE PROBLEM INPUT DATA 722
NEA0550_02.005 SAMPLE PROBLEM PRINTED OUTPUT 989
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17. CATEGORIES
  • I. Deformation and Stress Distributions, Structural Analysis and Engineering Design Studies
  • N. Subsidiary Calculations

Keywords: computer graphics, finite element method, mesh generation, reactor lattices, stress analysis.