A Variational Constitutive Model of Void Growth in Single and Polycrystals Application to Ultrafine Grained and Nanocrystalline Materials

Date

2010-07-23

Author

Gürses, Ercan

Metadata

Show full item record

Item Usage Stats

40
views

0
downloads

URI

https://hdl.handle.net/11511/81056

Collections

Unverified, Conference / Seminar

Suggestions

OpenMETU
Core

A Variational Constitutive Model for Void Growth in Crystals Application to Nanocrystals Gürses, Ercan (null; 2010-05-21)
A variational multiscale constitutive model for nanocrystalline materials Gürses, Ercan (Elsevier BV, 2011-03-01) This paper presents a variational multi-scale constitutive model in the finite deformation regime capable of capturing the mechanical behavior of nanocrystalline (nc) fcc metals. The nc-material is modeled as a two-phase material consisting of a grain interior phase and a grain boundary effected zone (GBAZ). A rate-independent isotropic porous plasticity model is employed to describe the GBAZ, whereas a crystal-plasticity model which accounts for the transition from partial dislocation to full dislocation m...
A phase-field model for chemo-mechanical induced fracture in lithium-ion battery electrode particles MIEHE, C.; Dal, Hüsnü; SCHAENZEL, L. -M.; RAINA, A. (2016-06-01) Capacity fade in conventional Li-ion battery systems due to chemo-mechanical degradation during charge-discharge cycles is the bottleneck in high-performance battery design. Stresses generated by diffusion-mechanical coupling in Li-ion intercalation and deintercalation cycles, accompanied by swelling and shrinking at finite strains, cause micro-cracks, which finally disturb the electrical conductivity and isolate the electrode particles. This leads to battery capacity fade. As a first attempt towards a reli...
A macroscopic model for self-organized aggregation in swarm robotic systems Soysal, Onur; Şahin, Erol (2006-10-01) We study the self-organized aggregation of a swarm of robots in a closed arena. We assume that the perceptual range of the robots are smaller than the size of the arena and the robots do not have information on the size of the swarm or the arena. Using a probabilistic aggregation behavior model inspired from studies of social insects, we propose a macroscopic model for predicting the final distribution of aggregates in terms of the parameters of the aggregation behavior, the arena size and the sensing chara...
A constitutive model for hyromechanically coupled behavior of unsaturated soils with hydraulic hysteresis Eyüpgiller, Mustafa Mert; Kenanoğlu, Melih Birhan; Ülker, Mehmet Barış Can; Toker, Nabi Kartal (2021-07-28) There are several constitutive models developed for understanding coupled hydromechanicalbehavior of three phase medium of unsaturated soils as well as models for explaining hydraulic hysteresis inwater retention. However, very few attempts that merge the two aspects of behavior are available. Thisstudy develops a one-way coupled model for understanding the hydromechanical behavior of unsaturatedsoils. In addition to the hysteresis between main drying and wetting retention curves, the model considersnon-uni...

Citation Formats

E. Gürses, “A Variational Constitutive Model of Void Growth in Single and Polycrystals Application to Ultrafine Grained and Nanocrystalline Materials,” 2010, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/81056.