Imperial College London
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M H Ferri Aliabadi

Faculty of Engineering, Department of Aeronautics

Chair in Aerostructures
 
 
 
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Contact

 

+44 (0)20 7594 5077m.h.aliabadi

 
 
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Assistant

 

Miss Lisa Kelly +44 (0)20 7594 5056

 
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Location

 

CAGB323City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Geraci:2019:10.1002/nme.5997,
author = {Geraci, G and Aliabadi, MH},
doi = {10.1002/nme.5997},
journal = {International Journal for Numerical Methods in Engineering},
pages = {1205--1233},
title = {Micromechanical modeling of cohesive thermoelastic steadystate and transient cracking in polycrystalline materials},
url = {http://dx.doi.org/10.1002/nme.5997},
volume = {117},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - In this paper, a micromechanical formulation is proposed for modeling thermoelastic intergranular and transgranular damage and microcracking evolution in brittle polycrystalline materials. The model is based on a multiregion boundary element approach combined with the dual boundary element formulation. Polycrystalline microstructures are created through a Voronoi tessellation algorithm. Each crystal has an elastic isotropic behavior, and multiphase aggregates have been considered. Damage evolution along (intergranular or transgranular) interfaces is modeled using thermomechanical cohesive laws, and upon failure, nonlinear frictional contact analysis is introduced to model separation, stick or slip. Steadystate and transient thermoelastic formulations have been modeled, and numerical simulations are presented, not only to demonstrate the validity but also to study the physical implications of the proposed formulation, in comparison with other numerical methods as well as experimental observations and literature results.
AU  - Geraci,G
AU  - Aliabadi,MH
DO  - 10.1002/nme.5997
EP  - 1233
PY  - 2019///
SN  - 0029-5981
SP  - 1205
TI  - Micromechanical modeling of cohesive thermoelastic steadystate and transient cracking in polycrystalline materials
T2  - International Journal for Numerical Methods in Engineering
UR  - http://dx.doi.org/10.1002/nme.5997
UR  - http://hdl.handle.net/10044/1/66194
VL  - 117
ER  -
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