Brittle-ductile failure mechanics of mortar and concrete. Final report, 15 Apr 89-30 Sep 91

Technical Report · Mon Sep 30 00:00:00 EDT 1991

OSTI ID:5711570

Sture, S; William, K J; Saouma, V

This report summarizes analysis and results comprising both theory and experiments related to modeling of interfaces between cement matrix and aggregates. The model simulates accurately behavior under complex two and three dimensional states of stress and deformation, where tension-shear and compression-shear conditions occur. The constitutive theory describes fracture and slip of interfaces and adhesion, debonding, and mobilized friction mechanisms are modeled. Fracture energy release is used to control softening. Analytical predictions of experiments compare well, and the model has been implemented in nonlinear finite element analysis codes.

• Research Organization: Colorado Univ., Boulder, CO (United States). Dept. of Civil, Environmental, and Architectural Engineering
• OSTI ID: 5711570
• Report Number(s): AD-A-244131/9/XAB; CNN: AFOSR-89-0289
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CONCRETES
FAILURES
MECHANICAL PROPERTIES
MORTARS
ADHESION
BRITTLENESS
CEMENTS
COMPOSITE MATERIALS
DEFORMATION
DUCTILITY
ENERGY TRANSFER
FINITE ELEMENT METHOD
FRICTION
INTERFACES
MATHEMATICAL MODELS
MATRIX MATERIALS
NONLINEAR PROBLEMS
PLASTICITY
BUILDING MATERIALS
MATERIALS
NUMERICAL SOLUTION
TENSILE PROPERTIES
360603* - Materials- Properties