NEA-0852 SICOS.

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

NAME OR DESIGNATION OF PROGRAM, COMPUTER, DESCRIPTION OF PROBLEM OR FUNCTION, METHOD OF SOLUTION, RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM, TYPICAL RUNNING TIME, UNUSUAL FEATURES OF THE PROGRAM, RELATED AND AUXILIARY PROGRAMS, STATUS, REFERENCES, MACHINE REQUIREMENTS, LANGUAGE, OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED, OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHOR, MATERIAL, CATEGORIES

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1. NAME OR DESIGNATION OF PROGRAM: SICOS.

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2. COMPUTERS

To submit a request, click below on the link of the version you wish to order. Only liaison officers are authorised to submit online requests. Rules for requesters are available here.

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.