Home

Webp.net-compress-image.jpg

MSDL in a Nutshell

In an ideal world, a jet engine turbine blade would never crack, would never fatigue, would withstand as high a temperature as we can impose, and would be as light and as strong as we can imagine. In the real world, to take even partial steps towards such goals, we need a deep understanding of materials performance at many length and time scales. At nano and meso scales, the mismatch between elastic and plastic properties of each grain in a polycrystalline material results in local stress concentrations and in crack nucleation which eventually limits the life and performance of a design. Understanding the nature and the source of local stress heterogeneities and their impact on the macroscopic behaviour require development of numerical methods describing each length and time scale, approaches to bridge between methods, and the use or development of cutting edge experimental techniques to validate the numerical results. 

Our research focuses on the development of different numerical methods and on the linking of them to diffraction and image based experimental techniques. At MSDL we seek to explain the effects of various environments on the performance and integrity of polycrystalline materials. 


 

Research topics:

  • Mechanics of materials across length and time scales- both modeling and experimental.
  • Fatigue, fracture, and (irradiation) creep.  
  • Finite element, crystal plasticity, and dislocation dynamics.
  • Synchrotron x-ray, neutron, and electron diffraction/imaging.
See more...

 

Supported by

nserc_c_rsz.jpg

Meet us at

Alireza and Karim will give a talk. 
 
Hamid will deliver an invited talk. 
 
Several memebers of the group will give a talk.
 

News

Jul 2022: Congratulations to Alireza for winning the best oral presentation award at the Canadian Materials Science Conference, which was held at the University of Toronto. 

Jul 2022: A new paper from the group: Modeling the interactions of hydrides https://doi.org/10.1016/j.mtcomm.2022.103933

Jun 2022: Congratulations to Ahmed for defending his MESc thesis sucessfully. 

Apr 2022: Congratulations to Bolin Fu for passing his comprehensive exam and defending his PhD proposal sucessfully. 

Jan 2022: Alireza's paper, on the effects of microstructure on hydrogen diffusion towards notch tips, is out: https://doi.org/10.1016/j.ijplas.2022.103234

Dec 2021: A microstructure-sensitive damage model, a new development from the group: https://doi.org/10.1016/j.ijplas.2021.103156

 See more...


Selected Publications
Abdolvand, H.* "Development of microstructure-sensitive damage models for zirconium polycrystals", International Journal of Plasticity, 2022, Vol 149, 103156, DOI: https://doi.org/10.1016/j.ijplas.2021.103156 
 
Tondro, A., Abdolvand, H.*, "Quantifying hydrogen concentration in the vicinity of zirconium hydrides and deformation twins", Journal of the Mechanics and Physics of Solids, 2021, 148,104287, DOI: https://doi.org/10.1016/j.jmps.2020.104287  
 
Abdolvand H.* "Progressive Modelling and Experimentation of Hydrogen Diffusion and Precipitation in Anisotropic Polycrystals". International Journal of Plasticity, 2019, Vol 116, P 39-61. DOI:10.1016/j.ijplas.2018.12.005 
 
Abdolvand, H.*, Wright, J., Wilkinson, A.J., “Strong Grain Neighbour Effects in Polycrystals”, Nature Communications, 2018, 9, 171, DOI: 10.1038/s41467-017-02213-9 
  
 
See more...