Computer Programs

NEA-0571 SIGMA-RZ.

NEA-0571 SIGMA-RZ.

SIGMARZ, Stress Analysis of Axisymmetric or Plane Structures

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, 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: SIGMA-RZ.

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2. COMPUTERS

To submit a request, click below on the link of the version you wish to order. Rules for end-users are available here.

Program name	Package id	Status	Status date
SIGMARZ	NEA-0571/01	Tested	01-OCT-1978

Machines used:

Package ID	Orig. computer	Test computer
NEA-0571/01	CDC 7600	CDC 7600

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3. NATURE OF PHYSICAL PROBLEM SOLVED

Classic stress analysis program for axisymmetric or plane geometric structures.

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4. METHOD OF SOLUTION

The finite element method is used. Input are the finite element nodes, the imposed displacements, the applied forces at the nodes and the volumetric distributed forces. The linear equation system is solved by the Cholesky method.

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

Maximum number of nodes : 800
Maximum number of elements : 1300
Maximum number of displacements : 300
Maximum band width : 72

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6. TYPICAL RUNNING TIME

Sample problem: 347 nodes, 607 elements, bandwidth 34, axisymmetric geometry. The execution of the sample problem took 1.75 secs of CPU time on CDC7600.

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7. UNUSUAL FEATURES: UNUSUAL FEATURES OF THE PROGRAM

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8. RELATED AND AUXILIARY PROGRAMS: TEMP, MAILLE.

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9. STATUS

Package ID	Status date	Status
NEA-0571/01	01-OCT-1978	Tested at NEADB

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10. REFERENCES

- Input description in French:
Calcul de contreintes - entree des donnees programme SIGMA RZ

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11. MACHINE REQUIREMENTS

Maximum SCM : 60500 octal words
maximum LCM : 171000 octal words

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12. PROGRAMMING LANGUAGE(S) USED

Package ID	Computer language
NEA-0571/01	FORTRAN-IV

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13. OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED: SCOPE 2.1.

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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

     FRANLAB, Informatique
     4 Av. de Bois-Preau
     92 Rueil-Malmaison
     France

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16. MATERIAL AVAILABLE

NEA-0571/01

File name	File description	Records
NEA0571_01.001	INFORMATION	4
NEA0571_01.002	SOURCE PROGRAM (F4,EBCDIC)	950
NEA0571_01.003	JCL	26
NEA0571_01.004	SAMPLE PROBLEM INPUT DATA (CASE 1)	218
NEA0571_01.005	SAMPLE PROBLEM INPUT DATA (CASE 2)	239
NEA0571_01.006	SAMPLE PROBLEM PRINTED OUTPUT (CASE 1)	1089
NEA0571_01.007	SAMPLE PROBLEM PRINTED OUTPUT (CASE 2)	1074

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17. CATEGORIES

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

Keywords: elasticity, finite element method, stress analysis.