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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"post peak behavior"”.
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Experimental and analytical investigation of localization and post-peak behavior of steel members in tension
… blast requires detailed understanding of their post-peak behavior. In steel structures, these extreme-limit states are associated with local or global instability such as local buckling, tension necking, and fracture. Several methods have been developed to simulate such extreme limit states such …
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Fracture Behavior of Masonry Bond
… were considered, always over-estimated the post-peak behavior. However, the post-peak behavior was successfully predicted when the model was modified to consider only elastic deformation. The analysis indicated that little toughening action took place during the fracture process and the …
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Fiber Orientation Effects on the Fracture and Flexural Toughness of Extruded Fiber Reinforced Concrete for Additive Manufacturing
… The results show that enhanced ductility and post-peak behavior are achieved in concrete to which fibers have been added, as has been demonstrated in other studies, although this study further demonstrated how preferential fiber alignment produced via an extrusion can enhance fracture and …
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Characterizing the Shear Behavior of Ultra-High-Performance Concrete through the Universal Panel Tester
The limited understanding of the shear behavior of Ultra-High-Performance Concrete (UHPC), especially under the effects of axial loads and varying scales, poses challenges to the formulation of reliable design models. Although UHPC is being utilized in structural applications, its complex behavior …
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Performance of Full-Scale Reinforced Concrete Columns Subjected to Extreme Earthquake Loading
… goal of the program was to investigate the post-peak behavior of the specimens at near-collapse conditions, hence loading on the specimens continued beyond the stopping criteria in previous tests until the specimens exhibited severe strength loss and stiffness degradation. Results from these …
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Performance and Design of Extruded Fiber-Reinforced Mortar with Preferentially Aligned Fibers
… evaluation of flexural models for predicting the behavior of functionally graded FRC. It embarks on a critical investigation aimed at bridging a significant gap in the understanding of FRC materials' behavior, particularly in terms of fracture and flexural performance. Across five distinct …
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Investigation of unstable failure in underground coal mining using the discrete element method
… for unstable failure studies based on consistent behavior in stable and unstable modes of failure and a post-peak softening characteristic that is independent of the loading rate. A set of model behaviors, called indicators, are analyzed on their ability to distinguish the stability of failure in …
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AN IMPROVED ROCK MASS BEHAVIOR NUMERICAL MODEL AND ITS APPLICATIONS TO LONGWALL COAL MINING
TITLE: AN IMPROVED ROCK MASS BEHAVIOR NUMERICAL MODEL AND ITS APPLICATIONS TO LONGWALL COAL MINING The rock mass constitutive models should include elastic moduli, strength and stiffness of intact rock as well as those of joints and geometric properties of joints. The post-failure behavior of …
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Experimental Compressive Behavior and Numerical Modeling of Unconfined and Confined Ultra-High Performance Concrete
… by fiber, which has compressive and sustained post-cracking tensile strength of more than 21.7 ksi (150 MPa) and 0.72 ksi (5 MPa), respectively. The outstanding mechanical behavior of UHPC is owed to its particular mixture. UHPC is a combination of Portland cement, silica fume, fine sand, …