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Discussion of “<i>Free Vibration Behavior of Prestressed Beams</i>” by K. Kanaka Raju and G. Venkateswara Rao (February, 1986, Vol. 112, No. 2)
Publisher: American Society of Civil Engineers
Finite Element Modeling of Crack Band Propagation
Publisher: American Society of Civil Engineers
Abstract: The propagation of blunt smeared crack bands through a finite element mesh in plain or reinforced concrete. structures is studied. A previous work, which demonstrated (approximate) independence of results from the chosen ...
Discussion of “<i>2‐D Finite Element Analysis of Massive RC Structures</i>” by Niels Saabye Ottosen (August, 1982)
Publisher: American Society of Civil Engineers
Initial Postcritical Analysis of Asymmetric Bifurcation in Frames
Publisher: American Society of Civil Engineers
Abstract: Asymmetry of the shape, supports, or loading of frames causes the initial post critical behavior to exhibit asymmetric bifurcation. Its source is the second‐order axial shortening of columns due to lateral deflection, which ...
Why Direct Tension Test Specimens Break Flexing to the Side
Publisher: American Society of Civil Engineers
Abstract: Contrary to the traditional view, unnotched direct tension test specimens of quasi‐brittle materials that exhibit post‐peak strain softening do not deform symmetrically. After passing the peak load, the equilibrium path ...
Closure to “<i>Finite Element Modeling of Crack Band Propagation</i>” by Zdenek P. Bazant and Luigi Cedolin (January, 1983)
Publisher: American Society of Civil Engineers
Biaxial Stress‐Strain Relation for Concrete
Publisher: American Society of Civil Engineers
Abstract: A constitutive law for concrete under monotonic biaxial loading up to peak stress is presented in the form of a total, explicit relation between stresses and strains. Explicitness is achieved by expressing the bulk and ...
Approximate Linear Analysis of Concrete Fracture by R‐Curves
Publisher: American Society of Civil Engineers
Abstract: Using linear elastic fracture analysis, the energy consumed per unit length of fracture (fracture energy) varies with the crack length, as described by the resistance curve (R‐curve). This concept, originally proposed for ...
Confinement-Shear Lattice Model for Concrete Damage in Tension and Compression: II. Computation and Validation
Publisher: American Society of Civil Engineers
Abstract: The concrete material model developed in the preceding Part I of this study is formulated numerically. The new model is then verified by comparisons with experimental data for compressive and tensile uniaxial tests, biaxial ...
Confinement-Shear Lattice Model for Concrete Damage in Tension and Compression: I. Theory
Publisher: American Society of Civil Engineers
Abstract: The mechanical behavior of the mesostructure of concrete is simulated by a three-dimensional lattice connecting the centers of aggregate particles. The model can describe not only tensile cracking and continuous fracture ...
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