Mikko Hokka
About me
I am professor of Materials Science, and currently I am the head of the unit of Materials Science and Environmental Engineering.My current research interests are closely related to the experimental characterization of material behavior under dynamic loading. I am interested in developing experimental characterization methods for high and low temperature testing at high strain rates, and various high speed digital photography and digital image correlation techniques for studying dynamic phenomena. More detailed examples include effects of strain rate and temperature (adiabatic heating) on the strain induced phase transformations, percussive drilling of rocks and concrete, plastic deformation of high entropy alloys, modeling of the stacking fault energy, and characterization of the effects of adiabatic heating on plastic deformation using simultaneous high speed optical and infrared imaging. Please see more on my website:
https://research.tuni.fi/impact/
Keywords: Mechanical testing, Experimental Mechanics, Digital Image Correlation, Infrared Imaging, Split Hopkinson Pressure Bar, Dynamic Behavior of Materials, Elasticity, time dependent plasticity, microplasticity, fracture and failure.
Main positions of trust
Member of DYMAT Governing Board (https://dymat.org/) since 2016
Latest publications
Effects of strain rate on martensitic phase transformation in TRIP assisted multiphase steels studied in-situ with X-ray diffraction
Langi, V., Pun, L., Ruiz, A. R., Isakov, M. & Hokka, M., Feb 2025, In: Materials Science and Engineering: A. 923, 147724.Research output: Contribution to journal › Article › Scientific › peer-review
Fracture Toughness Evaluation for Composite Delamination at a High Strain Rate and Tilted Specimen Design
Pournoori, N., Jokinen, J., Soares, G. C., Isakov, M., Lukić, B., Hokka, M. & Kanerva, M., 2025, (E-pub ahead of print) In: Journal of Materials Engineering and Performance.Research output: Contribution to journal › Article › Scientific › peer-review
Mesh and Homogenization Effects of Simulated High Strain Rate Delamination in CFRP Using VCCT
Pournoori, N., Jokinen, J., Isakov, M., Hokka, M. & Kanerva, M., 2025, Dynamic Response and Failure of Composite Materials - DRAF 2024. Lopresto, V. & Papa, I. (eds.). Springer, p. 3-10 8 p. (Lecture Notes in Mechanical Engineering).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review
Numerical Modelling of Frictional Sliding Induced Damage and Heating Effects on Rock With an Application to Sievers’ J-Miniature Drilling on Granite
Saksala, T., Rubio Ruiz, A., Bhusare, S., Mohanty, G., Coudert, T., Dumoulin, S., Bjorge, R., Kane, P.-A. & Hokka, M., 2025, (E-pub ahead of print) In: International Journal for Numerical and Analytical Methods in Geomechanics.Research output: Contribution to journal › Article › Scientific › peer-review
The effects of strain rate, adiabatic heating, and stress/strain state on strain-induced martensitic transformation in metastable austenitic stainless steel: Experimental and Numerical study
Moghanni Alghalandis, H., Langi, V., Pun, L., Rubio Ruiz, R. A., Isakov, M. & Hokka, M., Dec 2025, In: Materials Science and Engineering: A. 947, 149196.Research output: Contribution to journal › Article › Scientific › peer-review
Weakening of granite by alternating voltage excitation of dispersed quartz: A 2D numerical analysis based on cohesive interface elements with a fatigue damage model
Rubio Ruiz, A., Saksala, T., Isakov, M., Bhusare, S., Mohanty, G., Pournoori, N., Goudert, T., Dumoulin, S., Bjorge, R., Kane, A. & Hokka, M., 2025, In: International Journal of Impact Engineering. 206, 105439.Research output: Contribution to journal › Article › Scientific › peer-review
Dynamic Behavior of Materials: Fundamentals, Material Models, and Microstructure Effects
Hokka, M. (Editor), 2024, Elsevier. 693 p.Research output: Book/Report › Anthology › Scientific › peer-review
Dynamic plasticity of metals
Kuokkala, V.-T., Hokka, M. & Isakov, M., 2024, Dynamic Behavior of Materials: Fundamentals, Material Models, and Microstructure Effects. Hokka, M. (ed.). Elsevier, p. 15-49 35 p.Research output: Chapter in Book/Report/Conference proceeding › Chapter › Scientific › peer-review
Dynamic shear failure: The underlying physics
Rittel, D., Nieto-Fuentes, J. C. & Hokka, M., 2024, Dynamic Behavior of Materials: Fundamentals, Material Models, and Microstructure Effects. Hokka, M. (ed.). Elsevier, p. 117-132 16 p.Research output: Chapter in Book/Report/Conference proceeding › Chapter › Scientific › peer-review
In-situ synchrotron X-ray diffraction study of the effects of grain orientation on the martensitic phase transformations during tensile loading at different strain rates in metastable austenitic stainless steel
Pun, L., Langi, V., Ruiz, A. R., Isakov, M. & Hokka, M., May 2024, In: Materials Science and Engineering: A. 900, 146481.Research output: Contribution to journal › Article › Scientific › peer-review