mohsenzaeem's blog

I am pleased to share our newest open-access article just published in #ActaMaterialia. 

I am pleased to share our first open-access article of 2025! just published in #ActaMaterialia.

I am pleased to share our latest open-access article, just published in Extreme Mechanics Letters.

The Department of Mechanical Engineering (ME) at Colorado School of Mines invites applications for a tenure-track assistant professor position in the area of computational or experimental mechanics, with a focus on the fatigue and fracture and their impact on the performance of electrochemical energy storage and conversion materials.

The 8th World Congress on Integrated Computational Materials Engineering (ICME 2025) will be held in Anaheim Marriot • Anaheim, California, USA June 15–19, 2025

Submit your abstracts to ICME 2025 by October 30!

www.tms.org/ICME2025

I am happy to share our newest open access article which is just published in Scripta Materialia. For the first time, the mechanism of domain nucleation during ferroelastic domain switching is revealed by utilizing phase-field simulations.

I am happy to share our newest open access article which is published in Computational Materials Science. For the first time, we were able to create the t’ phase of yttria stabilized zirconia from its cubic phase through the process of rapid quenching by utilizing molecular dynamics simulations. The simulation of quenching process followed the experimental procedure, and the results of virtual XRD and RDF were comparable to the actual experiments, verifying the created phases.

Dear colleagues, I would like to share our new article (open access) that presents length scale insensitive phase-field fracture models for brittle and ductile fracture to address the deficiencies of the widely implemented models which over-estimate crack dissipation. 

W. Huber and M. Asle Zaeem. Length scale insensitive phase-field fracture methodology for brittle and ductile materials. Theoretical and Applied Fracture Mechanics 133 (2024) 104500.

Dear colleagues, our new article (open access) is just published in Acta Materialia. In this research, we provide new insights into the mechanism of ferroelastic deformation by studying the evolution of domains in different microstructure patterns and under different loading directions and strain rates.

A. Bhattacharya and M. Asle Zaeem. A phase-field model for study of ferroelastic deformation behavior in yttria stabilized zirconia. Acta Materialia (2024) 120039.

The premature failure of shape memory ceramics (SMCs) under cyclic loading is a critical issue limiting their applications as actuators and thermal protection layers. Martensitic phase transformation (MPT), essential for superelasticity and shape memory functionalities in SMCs, induces localized plastic deformations due to phase expansion. In polycrystalline materials, the accumulation of localized plastic strain serves as the primary mechanism for fatigue crack initiation under cyclic loading.

Solidification phenomenon has been an integral part of the manufacturing processes of metals, where the quantification ofstochastic variations and manufacturing uncertainties is critically important. Accurate molecular dynamics (MD) simulations ofmetal solidification and the resulting properties require excessive computational expenses for probabilistic stochastic analyseswhere thousands of random realizations are necessary.

I am happy to share with you our recent paper on kinetic phase-field modeling of non-equilibrium crystal growth, which is just published in Acta Materialia, it is open access:

S. Kavousi, V. Ankudinov, P. K. Galenko, M. Asle Zaeem. Atomistic-informed kinetic phase-field modeling of non-equilibrium crystal growth during rapid solidification. Acta Materialia 253 (2023) 118960 (11 pages).

We present the first mixed mode phase-field model of ductile fracture. The contribution of crack opening and shearing deformations to the propagation of a crack is expressed by introducing two phase fields. Constitutive relations are then introduced to couple and distinguish these phase fields. Special attention is given to the maximum shear stress and its effect on the development of fractures. The proposed model is validated by tensile testing experiments found in the literature on Al 2024 T-351.

This work presents a modified phase-field model for accurate coupling of phase transformation and cracking in shape memory ceramics. The existing phase-field models underestimate the elastic response at the beginning of the mechanical response. We modified the chemical free energy to control the rate of phase transformation and consequently obtain a physical elastic response before initiation of phase transformation. First, the forward and reverse martensitic phase transformation in a superelastic single crystal 3 mol% yttria-stabilized tetragonal zirconia is studied.

Large deformation of shape-memory polymer-based lattice metamaterials. International Journal of Mechanical Sciences (2022) 107593  

A PostDoc/Research Associate Position is available immediately at Colorado School of Mines. The applicants should have a PhD degree in Mechanical Engineering, Materials Science or a relevant field, with a strong background in phase-field modeling and/or MD simulations, especially in the area of diffusionless phase transformation and ferroelasticity. Knowledge of machine learning and data analysis is a plus. Interested candidates should send their CV with 2-3 of their recent and reverent publications to zaeem@mines.edu (Prof.

G. Azizi, S. Kavousi, and M. Asle Zaeem. Interactive effects of interfacial energy anisotropy and solute transport on solidification patterns of Al-Cu alloys. Acta Materialia 231 (2022) 117859 (15 pages). 

A PostDoc/Research Associate Position is available immediately at Colorado School of Mines. The applicants should have a PhD degree in Mechanical Engineering, Materials Science or a relevant field, with a strong background in MD simulations and/or phase-field modeling. The project involves developing new models for diffusionless phase transformation and ferroelasticity. Knowledge of machine learning and data analysis is a plus. Interested candidates should send their CV with 2-3 of their recent and reverent publications to zaeem@mines.edu (Prof.

A PostDoc/Research Associate Position is available immediately at Colorado School of Mines. The applicants should have a PhD degree in Mechanical Engineering, Materials Science or in a relevant field, with a strong background in DFT calculations, MD simulations and/or phase-field modeling. Project involves developing new models for diffusionless phase transformation and ferroelasticity. Knowledge of machine learning and data analysis is a plus.

In this work, superelastic and shape memory properties of single crystalline and polycrystalline yttria stabilized tetragonal zirconia (YSTZ) nanoparticles are studied by atomistic simulations. N. Zhang and M. Asle Zaeem. Superelasticity and shape memory effect in zirconia nanoparticles. Extreme Mechanics Letters 46 (2021) 101301 (8 pages).

A modified phase-field model for fracture is presented which includes the material strength and cleavage planes to quantitatively predict the crack propagation path and the mechanical response in polycrystalline brittle materials. Computational Materials Science 197 (2021) 110642 (11 pages).