Computer Programs
NEA-0852 SICOS.
last modified: 03-SEP-1984 | catalog | categories | new | search |

NEA-0852 SICOS.

SICOS, 2-D Time-Dependent Creep Calculation of Plane or Axisymmetric Concrete Structure

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1. NAME OR DESIGNATION OF PROGRAM:  SICOS.
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2. COMPUTERS
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Program name Package id Status Status date
SICOS NEA-0852/01 Tested 03-SEP-1984

Machines used:

Package ID Orig. computer Test computer
NEA-0852/01 IBM 3033 IBM 3033
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3. DESCRIPTION OF PROBLEM OR FUNCTION

Two-dimensional program for time-dependent calculation of plane and axisymmetric composite con-  crete structures.  Assumed material behaviour:
-  linear viscoelasticity (creep) for the concrete
-  Hooke's Law for liner and reinforcement

The given structure may be represented by:
- triangular constant strain concrete elements, plane or axisym-    metric
-  plane or axisymmetric membrane steel elements (liner)
- one-dimensional steel elements, in plane or axisymmetric geometry     (prestress cables).

Transient pressure loads and temperature distributions may be taken  into account. Options for mesh generation, calculation of tempera- ture distributions, restart and the representation of results are included.
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4. METHOD OF SOLUTION

The program uses the finite-element method.
The solution of the linear equation systems is performed either by utilization of the Gauss-Seidel iteration or by direct Gauss elimin- ation possibly with reiteration. The calculation can also be per- formed with double-precision.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

Restriction to axi-  symmetric and plane problems. Only linear-viscoelastic creep be- haviour. No possibility of taking into account aging and shrinkage.
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6. TYPICAL RUNNING TIME

For 400 nodes, 700 elements and one time in-  crement approximately 1 minute CPU time is required on the IBM 3033.
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7. UNUSUAL FEATURES OF THE PROGRAM

The program can also be utilized for linear-elastic problems.
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8. RELATED AND AUXILIARY PROGRAMS:
NEA-0852/01
SAFE-PLOT           A Plotting Program to Evaluate the Results of
                    Stress Calculations with the Program SIGMA
                    and SICOS.
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9. STATUS
Package ID Status date Status
NEA-0852/01 03-SEP-1984 Tested at NEADB
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10. REFERENCES

- De Arriaga/Rashid, SAFE-CREEP: A Computer Program for the Visco-   elastic Analysis of Axisymmetric and Plane Concrete Structures,
  GA-8111 (1967).
NEA-0852/01, included references:
- Plattenberg and Schmidt:
  SICOS - A Two-Dimensional Finite-Elements Program to Calculate the
  Visco-Elastic Behaviour of Re-enforced Concrete Constructions.
  (in German) EA-0077 (November 21, 1977)
- A. Schmidt:
  A Plotting Program to Evaluate the Results of Stress Calculations
  with SIGMA and SICOS. (in German) SG 928 i A. 3329 (Aug. 1, 1977)
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11. MACHINE REQUIREMENTS

For actual data 70,000 words; may be varied by minor changes in the main program (variable dimensioning). Peri-  phery:  discs and up to 2 tapes.
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
NEA-0852/01 FORTRAN-IV
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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:
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15. NAME AND ESTABLISHMENT OF AUTHOR

          W. Plettenberg and A. Schmidt
          Hochtemperatur-Reaktorbau GmbH
          D-6800 Mannheim
          Gottlieb-Daimler-Str. 8
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16. MATERIAL AVAILABLE
NEA-0852/01
File name File description Records
NEA0852_01.003 SICOS INFORMATION FILE 77
NEA0852_01.004 SICOS SOURCE PROGRAM (FORTRAN) 5149
NEA0852_01.005 SICOS JCL FOR TEST CASE EXECUTION 77
NEA0852_01.006 SICOS TEST CASE 1 INPUT (UNIT 5) 40
NEA0852_01.007 SICOS TEST CASE 2 INPUT (UNIT 5) 40
NEA0852_01.008 SICOS TEST CASE 3 INPUT (UNIT 5) 476
NEA0852_01.009 SICOS TEST CASE 1 OUTPUT (UNIT 6) 1663
NEA0852_01.010 SICOS TEST CASE 2 OUTPUT (UNIT 6) 1668
NEA0852_01.011 SICOS TEST CASE 3 OUTPUT (UNIT 6) 3612
NEA0852_01.012 AUXILIARY PROGRAM SOURCE 2344
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17. CATEGORIES
  • I. Deformation and Stress Distributions, Structural Analysis and Engineering Design Studies

Keywords: elasticity, finite element method, mechanical structures, pressure vessels.