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
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
On the use of an induced temperature gradient and full-field measurements to investigate and model the thermomechanical behaviour of an austenitic stainless steel 316
Correa Soares, G., Rubio Ruiz, A. & Hokka, M., 2024, In: Strain. 60, 2, 12 p., e12460.Research output: Contribution to journal › Article › Scientific › peer-review
Progressive Weakening of Granite by Piezoelectric Excitation of Quartz with Alternating Current
Rubio Ruiz, A., Pournoori, N., Isakov, M., Saksala, T., Bjørge, R., Rack, A., Lukic, B., Cohen, A., Levi‑Hevroni, D., Kane, P.-A. & Hokka, M., 23 May 2024, (E-pub ahead of print) In: Rock Mechanics and Rock Engineering. 11 p.Research output: Contribution to journal › Article › Scientific › peer-review
Quantification of energy consumed in simulated percussive drilling process using dynamic indentation experiment
Yao, W., Li, X., Corrêa Soares, G. & Hokka, M., Dec 2024, In: Geomechanics for Energy and the Environment. 40, 100604.Research output: Contribution to journal › Article › Scientific › peer-review
A numerical analysis of weakening of a granitic rock by piezoelectric excitation of quartz
Rubio Ruiz, A., Saksala, T., Kane, P.-A. & Hokka, M., 2023, Proceedings of the ISRM 15th International Congress on Rock Mechanics and Rock Engineering & 72nd Geomechanics Colloquium: Challenges in Rock Mechanics and Rock Engineering. Schubert, W. & Kluckner, A. (eds.). Austrian Society for Geomechanics, p. 1852-1857Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review
Effects of strain rate and adiabatic heating on mechanical behavior of medium manganese Q&P steels
Langi, V., Soares, G. C., Ahmed, S., Peura, P. & Hokka, M., 16 Feb 2023, In: Materials Science and Engineering A. 865, 10 p., 144659.Research output: Contribution to journal › Article › Scientific › peer-review
Exceptional Microscale Plasticity in Amorphous Aluminum Oxide at Room Temperature
Frankberg, E. J., Lambai, A., Zhang, J., Kalikka, J., Khakalo, S., Paladino, B., Cabrioli, M., Mathews, N. G., Salminen, T., Hokka, M., Akola, J., Kuronen, A., Levänen, E., Di Fonzo, F. & Mohanty, G., 2023, In: Advanced Materials. 35, 46, 2303142.Research output: Contribution to journal › Article › Scientific › peer-review