Search
Now showing items 1-7 of 7
Linking Nonlinear System Identification with Nonlinear Dynamic Simulation under OpenSees: Some Justifications and Implementations
Publisher: American Society of Civil Engineers
Abstract: This study seeks to bridge the gap between nonlinear system identification and nonlinear dynamic finite-element analysis. Motivated by the needs in earthquake simulation, it is first investigated under which conditions and ...
Deterministic Excitation Forces for Simulation and Identification of Nonlinear Hysteretic SDOF Systems
Publisher: American Society of Civil Engineers
Abstract: This paper investigates how to design deterministic excitation forces in studying nonlinear single-degree-of-freedom systems, especially those with rate and path dependency and strength and stiffness degradation. One ...
Constructing Multilayer Feedforward Neural Networks to Approximate Nonlinear Functions in Engineering Mechanics Applications
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a major step in the development and validation of a systematic prototype-based methodology for designing multilayer feedforward neural networks to model nonlinearities common ...
Flexural Behavior of Steel Fiber Reinforced Concrete
Publisher: American Society of Civil Engineers
Abstract: A constitutive model for steel fiber reinforced (SFR) concrete is proposed, in which the tensile behavior incorporates a bilinear strain softening feature. Composite material properties (
New Approach to Designing Multilayer Feedforward Neural Network Architecture for Modeling Nonlinear Restoring Forces. II: Applications
Publisher: American Society of Civil Engineers
Abstract: Based on the basic formulation developed in a companion paper, the writers now present the application of an artificial neural network approach to designing streamlined network models to simulate and identify the nonlinear ...
New Approach to Designing Multilayer Feedforward Neural Network Architecture for Modeling Nonlinear Restoring Forces. I: Formulation
Publisher: American Society of Civil Engineers
Abstract: This paper addresses the modeling problem of nonlinear and hysteretic dynamic behaviors through a constructive modeling approach which exploits existing mathematical concepts in artificial neural network modeling. In ...
Solving Dynamical Systems Involving Piecewise Restoring Force Using State Event Location
Publisher: American Society of Civil Engineers
Abstract: Many theoretical and experimental studies of complex path-dependent dynamic systems lead to
restoring forces expressed as piecewise nonlinear algebraic equations. Examples include, but are not
limited to, bilinear hysteretic, ...