Finite-element program for creep analysis of concrete structures

Conference · Thu Jan 01 04:00:00 EST 1981

OSTI ID:6167455

Bazant, Z P; Rossow, E C; Horrigmoe, G

A new finite element program for the analysis of creep effects in concrete structures, developed at Northwestern University, is briefly described. The program represents an extension of the general purpose finite element code NONSAP developed at University of California at Berkeley. The program uses a rate type creep law based on expanding the relaxation function in Dirichlet series. The creep law is linear, the aging is accounted for, and the temperature effects on creep rate as well as the rate of aging are considered. Material properties can be input either as empirical creep test data or as the double power law for creep. The program can automatically set up the creep parameter from partial empirical information. The program uses a step-by-step integration in time. Applications are envisaged chiefly for nuclear concrete structures.

• Research Organization: Oak Ridge National Lab., TN (USA); Northwestern Univ., Evanston, IL (USA). Dept. of Civil Engineering
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6167455
• Report Number(s): CONF-810801-57; ON: DE81028071
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220200 -- Nuclear Reactor Technology-- Components & Accessories
36 MATERIALS SCIENCE
360603* -- Materials-- Properties
BUILDING MATERIALS
COMPUTER CALCULATIONS
CONCRETES
CREEP
FINITE ELEMENT METHOD
MATERIALS
MATHEMATICAL MODELS
MECHANICAL PROPERTIES
NUMERICAL SOLUTION
REACTOR MATERIALS