Results 31 to 40 of about 10,379 (248)

In-plane anisotropy in deformation micro-mechanism of commercially pure titanium during monotonic tension and cyclic loading

open access: yesFracture and Structural Integrity, 2019
In the present investigation in-plane anisotropy in tensile and ratcheting behavior of cold rolled and annealed commercially pure titanium plate has been studied.
Atasi Ghosh
doaj   +3 more sources

Finite Element Implementation of a Temperature-Dependent Cyclic Plastic Model for SA508-3 Steel

open access: yesMetals, 2018
A new temperature-dependent cyclic plastic model, combining the nonlinear cyclic softening and kinematic hardening rules is established for a nuclear material of SA508-3 steel.
Jun Tian   +4 more
doaj   +1 more source

Stochastic ratcheting of two dimensional colloids : Directed current and dynamical transitions

open access: yes, 2015
We present results of molecular dynamics simulations for two-dimensional repulsively interacting colloids driven by a one dimensional asymmetric and commensurate ratchet potential, switching on and off stochastically. This drives a time-averaged directed
Chakraborty, Dipanjan   +1 more
core   +1 more source

Viscoplastic Constitutive Equations for Ratchetting Behavior

open access: yesTransactions of Materials Processing, 2005
Inelastic deformation behavior of metals and alloys is considered rate dependent. Uniaxial ratcheting experiments performed by Ruggles and Krempl, and Hassan and Kyriakides exhibited that higher mean stress for a fixed stress amplitude resulted in higher ratchet strain within a rate independent framework and higher stress rate resulted in lower ratchet
openaire   +2 more sources

Local Search and the Evolution of World Models

open access: yesTopics in Cognitive Science, EarlyView., 2023
Abstract An open question regarding how people develop their models of the world is how new candidates are generated for consideration out of infinitely many possibilities. We discuss the role that evolutionary mechanisms play in this process. Specifically, we argue that when it comes to developing a global world model, innovation is necessarily ...
Neil R. Bramley   +3 more
wiley   +1 more source

Self-loosening behavior of bolt in curvic coupling due to materials ratcheting at thread root

open access: yesAdvances in Mechanical Engineering, 2019
This article presents the bolt self-loosening mechanism in curvic coupling due to the structural ratcheting under cyclic loading. Finite element simulations are carried out under several loading conditions with different preloads and cyclic torque ...
Xiangjun Jiang   +3 more
doaj   +1 more source

Evaluation of Sensitivity and Calibration of the Chaboche Kinematic Hardening Model Parameters for Numerical Ratcheting Simulation

open access: yesApplied Sciences, 2019
Ratcheting failure of materials and structures subjected to low cycle fatigue in the presence of significant mean stress is of great interest to researchers.
Navid Moslemi   +4 more
doaj   +1 more source

Microscopic origin of granular ratcheting

open access: yes, 2007
Numerical simulations of assemblies of grains under cyclic loading exhibit ``granular ratcheting'': a small net deformation occurs with each cycle, leading to a linear accumulation of deformation with cycle number.
G. Festag   +7 more
core   +3 more sources

High cycle fatigue and ratcheting interaction of laser powder bed fusion stainless steel 316L:Fracture behaviour and stress-based modelling [PDF]

open access: yes, 2018
Variations in the physical and mechanical properties of parts made by laser power bed fusion (L-PBF) could be affected by the choice of processing or post-processing strategies.
Hardacre, David   +5 more
core   +1 more source

Dynamics, Rectification, and Fractionalization for Colloids on Flashing Substrates

open access: yes, 2006
We show that a rich variety of dynamic phases can be realized for mono- and bidisperse mixtures of interacting colloids under the influence of a symmetric flashing periodic substrate.
A. Libál   +4 more
core   +1 more source

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