Journal ArticleDOI
Constitutive Modeling of Structural Steels: Nonlinear Isotropic/Kinematic Hardening Material Model and Its Calibration
TLDR
In this paper, numerical models of structural components that deteriorate primarily due to geometric instabilities under multiaxis cyclic loading are sensitive to both the assumed geometric imperfections and the assumed geometry imperfections.Abstract:
Numerical models of structural components that deteriorate primarily due to geometric instabilities under multiaxis cyclic loading are sensitive to both the assumed geometric imperfections read more
Citations
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Journal ArticleDOI
Anchor‐yield exposed column bases for minimizing residual deformations in seismic‐resistant steel moment frames
Journal ArticleDOI
Development of loading protocols for experimental testing of double skin composite wall
Shiye Wang,Wei Wang +1 more
TL;DR: In this paper , the authors proposed loading protocols for double skin composite wall (DSCW) components under real earthquake excitations (far-field and near-fault earthquakes) to obtain an accurate assessment of seismic performance.
Journal ArticleDOI
Bayesian optimization for inverse identification of cyclic constitutive law of structural steels from cyclic structural tests
Bach Do,Makoto Ohsaki +1 more
TL;DR: In this article , the authors proposed using Bayesian optimization for solving an inverse problem by which certain parameters for the nonlinear combined isotropic/kinematic hardening model are inferred from cyclic responses of a specimen or a structural component.
Journal ArticleDOI
Optimizing the Voce–Chaboche Model Parameters for Fatigue Life Estimation of Welded Joints in High-Strength Marine Structures
TL;DR: In this article , the model parameters of each material zone in a S690 steel butt-welded joint were determined using an optimization algorithm based on the Newton trust region (NTR) method and an accumulated true strain parameter.
Journal ArticleDOI
Cyclic Metal Plasticity Model Parameters with Limited Information: Constrained Optimization Approach
TL;DR: This work has shown that monotonic loading for structural steels provides limited information with respect to the material’s characteristics, and its application in high-performance liquid chromatography requires further investigation.
References
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Book
Trust Region Methods
TL;DR: This chapter discusses Trust-Region Mewthods for General Constained Optimization and Systems of Nonlinear Equations and Nonlinear Fitting, and some of the methods used in this chapter dealt with these systems.
Journal ArticleDOI
Dislocation Theory of Yielding and Strain Ageing of Iron
A H Cottrell,B A Bilby +1 more
TL;DR: In this article, a theory of yielding and strain ageing of iron, based on the segregation of carbon atoms to form atmospheres round dislocations, is developed and the force needed to release a dislocation from its atmosphere is roughly estimated and found to be reasonable.
Book
Yield Point Phenomena in Metals and Alloys
TL;DR: Theory of yield point phenomena and their theoretical background can be found in this paper, where the effects of tensile machine and specimen stiffness on yield point effects are discussed.
Journal ArticleDOI
A Constitutive Model of Cyclic Plasticity With a Nonhardening Strain Region
Journal ArticleDOI
Computational modeling of cold-formed steel
TL;DR: In this paper, the authors provide an overview of computational modeling, both elastic buckling and nonlinear collapse analysis, for cold-formed steel members, and the importance of imperfections, residual stresses, material modeling, boundary conditions, element choice, element discretization, and solution controls in collapse modeling of cold-form steel.