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Showing 1 to 4 of 4 for “"backbone curve"”.
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Shear Modulus Degradation of Liquefying Sand: Quantification and Modeling
… approach, called the "degrading shear modulus backbone curve method" reasonably predicts the hysteretic shear stress behavior of the liquefied sand. The shear stresses and ground accelerations computed using this method reasonably matches those recorded at the Port Island Downhole Array (PIDA) …
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Experimental Identification of Nonlinear Systems
… frequency-response function in a least-squares curve-fitting algorithm. The algorithm is improved by making use of experimentally known information about the location of the bifurcation points. The method is validated by using the parameters extracted to predict the force-response curves at …
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Experimental and Analytical Investigation of Seismic Performance and Retrofit Techniques for Non-Ductile RC Structural Walls
… capture key performance metrics of the backbone curve while maintaining a similar statistical spread and trend to the performance metrics obtained through the ASCE-41 guidelines for most cases of flexurally-controlled walls. This indicates that the strain-based failure criteria can be an …
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The dynamic soil structure interaction of shallow foundations on dry sand beds
… of soil, was adapted and used to create the backbone curve of the moment-rotation cycle. A modification was made to the hysteretic damping rules proposed by Masing which allows the energy dissipation to be included in the model. The model was found to mimic the experimental data accurately, …