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J. Rots, René Borst (1989)
Analysis of concrete fracture in “direct” tensionInternational Journal of Solids and Structures, 25
(1992)
Symmetric and non-symmetric crack opening in direct tension tests for softening materials: A simple mechanical model”, in Fracture Mechanics of Concrete Structures
D. Owen, E. Hinton (1980)
Finite elements in plasticity : theory and practice
(1992)
“ Symmetric and non - symmetric crack opening in direct tension tests for softening materials : A simple mechanical model ”
G. Chen, G. Baker (2003)
An Energy Model for Bifurcation Analysis of a Double-Notched Concrete Panel: Simplified ModelAdvances in Structural Engineering, 6
C. Pearson (1956)
General theory of elastic stabilityQuarterly of Applied Mathematics, 14
(1989)
“ Analysis of concrete fracture in “ direct ” tension ”
Z. Bažant, L. Cedolin (1993)
WHY DIRECT TENSION TEST SPECIMENS BREAK FLEXING TO THE SIDEJournal of Structural Engineering-asce, 119
In this paper, the uni-axial tension of double-notched concrete specimens is analyzed by using a continuum plasticity model. As in a companion paper, the concept of minimization of the second-order energy is used as the criterion for judging a bifurcation. The energy computation is formulated in standard continuum plasticity. The analysis confirms that the unsymmetrical crack propagation (i.e. strains localizing on one side of the specimen) may occur either before or after the peak load. Influences on bifurcation of three factors, the notch depth to panel width, the local constitutive law, and the ratio of the panel width to panel length are investigated. A larger ratio of the notch depth to panel width, a steeper softening constitutive law, and a smaller ratio of the panel width to panel length, leads to an earlier bifurcation. These conclusions are consistent with those obtained from a simplified model.
Advances in Structural Engineering – SAGE
Published: Jan 1, 2003
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