Results 71 to 80 of about 213,665 (198)

A material model for warm forming of aluminium sheet [PDF]

open access: yes, 2003
A material model has been developed to simulate the warm forming of Al–Mg\ud sheet. Both the hardening behaviour, including temperature and strain rate effects, and the\ud biaxial stress–strain response of the sheet are considered.
Bolt, P.J., Boogaard, A.H. van den
core   +2 more sources

Hyperbolic hardening model for quasibrittle materials

open access: yesInternational Journal of Solids and Structures, 2017
Abstract In this study an elastoplastic hardening model for quasibrittle materials is presented. The yield surface exhibits hyperbolic meridians while its shape on the deviatoric plane is described by an elliptic function. The proposed hardening mechanism is controlled by the slope of the asymptotes of the hyperbolic meridians and thus by the ...
Pantelis Liolios, George Exadaktylos
openaire   +1 more source

Continuum modelling of work hardening in precipitation hardened alloys

open access: yes, 2022
This thesis deals with prediction of macroscopic work hardening in a precipitation hardened alloy. The focus is on the particle contribution. A hierarchical modelling approach is adopted where work hardening in a representative material volume on the microscale is homogenized and used to represent the macroscopic hardening. The modelling on the smaller
openaire   +1 more source

Calibration of the hardening soil model in excalibre

open access: yesActa Polytechnica CTU Proceedings
The hardening soil model is one of the most commonly used constitutive models in engineering practice. This model is based on multi-surface plasticity and combines the well-known Mohr-Coulomb failure criterion, a hardening shear surface and a cap yield ...
Do Chinh Phuong   +3 more
doaj   +1 more source

EFFECT OF MATERIAL WORK HARDENING MODEL ON THE SIMULATION PRECISION FOR SPRINGBACK

open access: yesJixie qiangdu, 2015
Springback is an inevitable phenomenon in the stamping process,which not only affects the dimension precision,but also affects the structure reliability.
罗云, 蒋文春, 杨滨, 王炳英
doaj  

Effects of Heterogeneous Microstructures on the Strain Hardening Behaviors of Ferrite-Martensite Dual Phase Steel

open access: yesMetals, 2018
The complex strain hardening behaviors of dual phase (DP) steel are subjected to the heterogeneous microstructures. The current work aims to predict the strain hardening behaviors of ferrite-martensite DP steel, focusing on the effects of heterogeneous ...
Chuang Ren   +3 more
doaj   +1 more source

Lattice dynamics for isochorically heated metals: A model study

open access: yes, 2019
The electron-excitation induced bond strength variations in metals have been predicted from density-functional theory calculations and observed experimentally, while the microscopic mechanism has yet to be elucidated.
Ono, Shota
core   +1 more source

Application of Dimension Extending Technique to Unified Hardening Model

open access: yesApplied Sciences
This paper provides the process of incremental constitutive integration for the unified hardening model combined with the transformation stress method. The dimension-extending technique takes the hardening function of the hardening/softening model as the
Qian Chen, Hong Zheng, Dongshuai Tian
doaj   +1 more source

Home - About - Disclaimer - Privacy