NONSAP-C; nonlinear stress concrete structures. [CDC7600; FORTRAN IV (CDC FORTRAN Extended)]

Technical Report ·

OSTI ID:6480849

Fowler, T B; Tobias, M L; Fox, J N; Lawler, B E; Koppel, J U; Triplett, J R; Lynn, L L; Waldman, L A; Goldberg, I; Greebler, P; Kelley, M D; Davis, R A; Keck, C E; Redfield, J A; Murphy,; Taylor, C

NONSAP-C is a finite element program for determining the static and dynamic response of three-dimensional reinforced concrete structures. Long-term, or creep, behavior of concrete structures can also be analyzed. Nonlinear constitutive relations for concrete under short-term loads are incorporated in two time-independent models, a variable-modulus approach with orthotropic behavior induced in the concrete due to the development of different tangent moduli in different directions and an elastic-plastic model in which the concrete is assumed to be a continuous, isotropic, and linearly elastic-plastic strain-hardening-fracture material. A viscoelastic constitutive model for long-term thermal creep of concrete is included. Three-dimensional finite elements available in NONSAP-C include a truss element, a multinode tendon element for prestressed and posttensioned concrete structures, an elastic-plastic membrane element to represent the behavior of cavity liners, and a general isoparametric element with a variable number of nodes for analysis of solids and thick shells.CDC7600; FORTRAN IV (CDC FORTRAN Extended); LTSS (CDC7600), SCOPE 2.1.5 (CDC7600); Approximately 115K (octal) words of small core memory and 345K (octal) words of large core memory and 19 disk files are used by the program..

• Research Organization: Argonne National Lab., IL (USA)
• OSTI ID: 6480849
• Report Number(s): ANL/NESC-974; ON: DE83048974
• Resource Relation: Other Information: An out-of-core equation solver for large systems of linear equations allows practically unlimited problem size. The truss and tendon elements are assumed to have constant area. The tendon element cannot be used in geometrically nonlinear analyses. The membrane element can have from 4 to 8 nodes and the general three-dimensional isoparametric element from 8 to 21
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COMPUTER CODES
N CODES
PRESTRESSED CONCRETE
STRESS ANALYSIS
REINFORCED CONCRETE
CONTAINMENT SYSTEMS
FINITE ELEMENT METHOD
NONLINEAR PROBLEMS
REACTOR VESSELS
BUILDING MATERIALS
CONCRETES
CONTAINERS
CONTAINMENT
ENGINEERED SAFETY SYSTEMS
MATERIALS
NUMERICAL SOLUTION
REINFORCED MATERIALS
360603* - Materials- Properties