Computer Programs

NEA-0444 SCARF-4.

NEA-0444 SCARF-4.

SCARF-4, Nonlinear Stresses in Pressure Vessel Liner with Plastic Behaviour Simulation

NAME OR DESIGNATION OF PROGRAM, COMPUTER, NATURE OF PHYSICAL PROBLEM SOLVED, METHOD OF SOLUTION, RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM, 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: SCARF-4.

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2. COMPUTERS

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Program name	Package id	Status	Status date
SCARF-4	NEA-0444/01	Tested	01-JUL-1976

Machines used:

Package ID	Orig. computer	Test computer
NEA-0444/01	IBM 370 series	IBM 370 series

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3. NATURE OF PHYSICAL PROBLEM SOLVED

Calculates non-linear stresses in a pressure vessel liner, simulating plastic behaviour on both panels and shear connectors.

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4. METHOD OF SOLUTION

Iterations on the relevant formulae to obtain values of forces and deflections, adding a displacement factor when yielding has occurred.

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

It is assumed that the left-hand end-load will stay constant throughout each loading cycle. Number of panels must be less than or equal to 62.

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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:
Supersedes SCARF-3. Free-format I/O routine DECIN.

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9. STATUS

Package ID	Status date	Status
NEA-0444/01	01-JUL-1976	Tested at NEADB

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10. REFERENCES

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11. MACHINE REQUIREMENTS

Logical unit numbers 5 and 6 used for input and output respectively.

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12. PROGRAMMING LANGUAGE(S) USED

Package ID	Computer language
NEA-0444/01	FORTRAN+ASSEMBLER

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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

     A. Chadwick
     N.P.C. Ltd.
     Warrington Road
     Risley Warrington
     Cheshire WA3 6BZ United Kingdom

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16. MATERIAL AVAILABLE

NEA-0444/01

File name	File description	Records
NEA0444_01.001	SOURCE PROGRAM (F4) EBCDIC	275
NEA0444_01.002	RISLEY ROUTINES (FORTRAN) EBCDIC	711
NEA0444_01.003	RISLEY ROUTINES (ASSEMBLER) EBCDIC	1252
NEA0444_01.004	SAMPLE PROBLEM INPUT DATA	23
NEA0444_01.005	SAMPLE PROBLEM PRINTED OUTPUT	82

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17. CATEGORIES

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

Keywords: iterative methods, plasticity, pressure vessels, stress analysis.