ET-TFE-CMMM

My name is Harm Askes and I am a Professor of Computational Mechanics of Multiscale Materials in the Faculty of Engineering Technology.


Previous and current appointments

  • 1999-2004: Assistant Professor, Delft University of Technology
  • 2004-2021: Professor of Computational Mechanics, University of Sheffield
    • 2009-2017: Head of the Department of Civil and Structural Engineering
    • 2017-2021: Head of Interdisciplinary Programmes in Engineering
    • 2021: Deputy Vice-President for Education
  • 2022-present: Professor of Computational Mechanics of Multiscale Materials, University of Twente
    • 2023-2024: Interim Head of the Department of Civil Engineering and Management

 

Qualifications

  • 1993: Propaedeuse Psychology (Leiden University)
  • 1995: MSc Civil Engineering (Delft University of Technology)
  • 2000: PhD Computational Mechanics (Delft University of Technology)
  • 2013: DEng Higher Doctorate (University of Sheffield)
  • 2023: University Teaching Qualification (University of Twente)


Research

I am fascinated by how materials and structures react to extreme loading – especially extremely fast loading. There is often a human aspect to this mechanical response, in that people need to be protected from uncomfortable vibrations, unwanted noise, or life-threatening vehicle impact, e.g. Designing a material such that it possesses optimal behaviour at the macroscale means we have to understand the behaviour of its microstructural components – and particularly the interactions between these components.

This is where multiscale modelling comes in. By developing material models and computer simulations, we are able to understand how microscale mechanical behaviour drives macroscale mechanical behaviour – and vice versa. Once we understand this multiscale interaction, we are able to control it and optimise it.

Ongoing work is concentrated on the crossover with advanced manufacturing and the extension from purely mechanical behaviour to coupled physics, such as piezomagnetic and piezoelectric behaviour.

 

Education

I thoroughly enjoy teaching fundamental mechanics courses such as Statics, Dynamics, and Strength of Materials, but I have also taught advanced courses on Finite Element theory and applications. Because different people learn in different ways, my lectures are a mix of top-down “deduction” (use first principles to establish practical approaches to calculation) and bottom-up “induction” (establish patterns through the systematic study of particular cases).

Whether I teach 30 or 300 students, I make sure I have a good rapport with the students so that questions are encouraged. I have won various prizes and accolades, acknowledging both the quality of my classroom teaching and my leadership as Head of Department.

Expertise

  • Physics

    • Gradients
    • Elasticity
  • Earth and Planetary Sciences

    • Gradient
    • Model
    • Formulation
    • Coupling
  • Engineering

    • Models
    • Continuum Model

Organisations

Ancillary activities

  • University of SheffieldVisiting Professor

Publications

2023
Editorial: Special issue on advances in computational fracture mechanicsTheoretical and Applied Fracture Mechanics, 127, Article 104046. Rodríguez-Ferran, A. & Askes, H.https://doi.org/10.1016/j.tafmec.2023.104046Effects of randomness and piezomagnetic coupling on the appearance of stop-bands in heterogeneous magnetorheological elastomersArchive of Applied Mechanics, 93(8), 3259-3273. Eraslan, S., Gitman, I., Askes, H. & de Borst, R.https://doi.org/10.1007/s00419-023-02437-wSpatial and temporal averaging in the homogenisation of the elastodynamic response of periodic laminatesEuropean Journal of Mechanics, A/Solids, 100, Article 104973. Yağmuroğlu, İ., Ozdemir, Z. & Askes, H.https://doi.org/10.1016/j.euromechsol.2023.104973Band gaps of thermoelastic waves in 1D phononic crystal with fractional order generalized thermoelasticity and dipolar gradient elasticityWaves in Random and Complex Media (E-pub ahead of print/First online). Li, Y., Askes, H., Gitman, I. M., Krynkin, A. & Wei, P.https://doi.org/10.1080/17455030.2023.2222189Length scale parameters to estimate fatigue lifetime of 3D-printed titanium alloy Ti6Al4V containing notches in the as-manufactured conditionInternational Journal of Fatigue, 167(Part B), Article 107348. Razavi, N., Askes, H., Berto, F. & Susmel, L.https://doi.org/10.1016/j.ijfatigue.2022.107348Mass matrices for elastic continua with micro-inertiaComputers and Structures, 275, Article 106938. Gómez-Silva, F. & Askes, H.https://doi.org/10.1016/j.compstruc.2022.106938Representative Volume Element Size and Length Scale Identification in Generalised Magneto-ElasticityIn Sixty Shades of Generalized Continua: Dedicated to the 60th Birthday of Prof. Victor A. Eremeyev (pp. 159-170). Springer. Eraslan, S., Gitman, I. M., Xu, M., Askes, H. & de Borst, R.https://doi.org/10.1007/978-3-031-26186-2_11
2022

Research profiles

Courses academic year 2023/2024

Courses in the current academic year are added at the moment they are finalised in the Osiris system. Therefore it is possible that the list is not yet complete for the whole academic year.

Courses academic year 2022/2023

Address

University of Twente

Horst Complex (building no. 20), room N219
De Horst 2
7522 LW Enschede
Netherlands

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