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Title: Simple Formulation of Concrete Behavior Under Multiaxial Load Histories

Author(s): Thomas Stankowski and Kurt H. Gerstle

Publication: Journal Proceedings

Volume: 82

Issue: 2

Appears on pages(s): 213-221

Keywords: concretes; loads (forces); strains; stresses; structural analysis; triaxial loads

DOI: 10.14359/10330

Date: 3/1/1985

Some of the basic features of concrete behavior under complex stress histories have been explored experimentally in the cubical test cell, showing strong coupling between hydrostatic and distortional responses and leading to clear definitions of loading and unloading. Based on this information, an incremental formulation was developed which appears capable of predicting strains in concrete under arbitrary principal stress histories. This formulation accounts for full coupling between hydrostatic and deviatoric effects, requires only a minimum of material information for its implementation, and has features which are analogous to strain-hardening plasticity theory. The validity of the method is documented for the special case of axisymmetric stress histories by comparison with test results.