Results 61 to 70 of about 24,982 (347)

Analysis of ultra low cycle fatigue problems with the barcelona plastic damage model [PDF]

, 2013
This paper presents a plastic formulation based on the Barcelona plastic damage model ([1], [2]) capable of predicting the material failure due to Ultra Low Cycle Fatigue.
Barbat Barbat, Horia Alejandro, Barbu, Lucia Gratiela, Martínez García, Javier, Oller Martínez, Sergio Horacio   +3 more
core  

Numerical derivation of constitutive models for unbonded flexible risers [PDF]

, 2009
This is the post-print version of the final paper published in International Journal of Mechanical Sciences. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing, corrections,
Alfano, G, Bahai, H, Bahtui, A
core   +1 more source

On Considering the Influence of Kinematic Hardening in Finite Element Simulation of Hot Levelling of Structural Steel Heavy Plates [PDF]

, 2022
Naveen Krishna Baru, Marvin Laugwitz, Martin Jochum, Johannes Lohmar   +3 more
openalex   +1 more source

Adaptive Twisting Metamaterials

Advanced Materials, EarlyView.
This work introduces torque‐controlled twisting metamaterials as a transformative platform for adaptive crashworthiness. By combining multiscale predictive modeling with experimental validation on additively manufactured gyroids, it demonstrates tunable stiffness, collapse stress, and energy absorption.
Mattia Utzeri, Maria L. Gatto, Edoardo Mancini, Donato Orlandi, Daniele Cortis, Marco Sasso, Shanmugam Kumar   +6 more
wiley   +1 more source

The concurrent ratcheting and stiffness degradation-based damage variable in SA508 steel samples undergoing stress cycles at room and elevated temperatures

Materials Research Express
This study evaluates the interaction between ratcheting and stiffness degradation in SA508 steel samples at various operating temperatures using a combined isotropic-kinematic hardening framework.
M Karimi, A Varvani-Farahani
doaj   +1 more source

Mesoscale crystal plasticity modelling of Cu-Nb nanolaminates composites considering nonlocal effects and confined layer slip mechanisms

Materials & Design
Nanolaminated materials have garnered considerable attention due to their high strength, elevated strain hardening rate, and measurable plasticity. The heightened strain hardening rate is attributed to the presence of back stress resulting from plastic ...
Benjie Ding, Mengkai Lu, Lvwen Zhou, Jianying Hu, Chao Xie, Minghua Zhang, Jianke Du   +6 more
doaj   +1 more source

Bree's diagram of a functionally graded thick-walled cylinder under thermo-mechanical loading considering nonlinear kinematic hardening

Case Studies in Thermal Engineering, 2018
In this paper, elasto-plastic analysis of a thick-walled cylinder made of functionally graded materials (FGMs) subjected to constant internal pressure and cyclic temperature gradient loading is carried out using MATLAB.
Mohsen Damadam, Reza Moheimani, Hamid Dalir   +2 more
doaj   +1 more source

A comparison of two frameworks for kinematic hardening in hyperelasto-plasticity [PDF]

, 2017
In this work we compare two frameworks for thermodynamically consistent hyperelasto-plasticity with kinematic hardening. The first was formulated by Dettmer and Reese (2004), inspired by Lion (2000), and has been used to model sheet metal forming.
Ekh, Magnus, Meyer, Kanut A.
core  

Numerical simulation of a class of models that combine several mechanisms of dissipation: fracture, plasticity, viscous dissipation [PDF]

, 2014
We study a class of time evolution models that contain dissipation mech- anisms exhibited by geophysical materials during deformation: plasticity, viscous dissipation and fracture. We formally prove that they satisfy a Clausius-Duhem type inequality.
Bonnetier, Eric, Jakabcin, Lukas, Labbé, Stéphane, Replumaz, Anne   +3 more
core   +4 more sources

Wellposedness of kinematic hardening models in elastoplasticity [PDF]

ESAIM: Mathematical Modelling and Numerical Analysis, 1998
Summary: We consider a certain type of rate-independent elastoplastic constitutive laws for nonlinear kinematic hardening which include the models of Frederick-Armstrong, Bower and Mróz. We prove results concerning existence, uniqueness and continuous dependence for the stress-strain evolution considered as a function of time (but not of space).
Brokate, Martin, Krejčí, Pavel
openaire   +2 more sources