NEA-0550 GOMESH.

GOMESH, Finite Elements Structure Plot with Triangular Mesh

NAME OR DESIGNATION OF PROGRAM, COMPUTER, NATURE OF PHYSICAL PROBLEM SOLVED, METHOD OF SOLUTION, RESTRICTIONS, CPU, FEATURES, RELATED AND AUXILIARY PROGRAMS, 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: 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