In-Situ Damage Evaluation of Pure Ice under High Rate Compressive Loading

Autor: Matti Isakov, Janin Lange, Sebastian Kilchert, Michael May

Publikováno v: Materials, Vol 12, Iss 8, p 1236 (2019)

The initiation and propagation of damage in pure ice specimens under high rate compressive loading at the strain rate range of 100 s−1 to 600 s−1 was studied by means of Split Hopkinson Pressure Bar measurements with incorporated high-speed video

Externí odkaz: https://doaj.org/article/8d4133bd726840d7a6462672e23d8649

Effects of strain rate on strain-induced martensite nucleation and growth in 301LN metastable austenitic steel

Autor: Matti Isakov, Mikko Hokka, Lalit Pun, Guilherme Corrêa Soares

Publikováno v: Pun, L, Soares, G C, Isakov, M & Hokka, M 2022, ' Effects of strain rate on strain-induced martensite nucleation and growth in 301LN metastable austenitic steel ', Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, vol. 831, 142218 . https://doi.org/10.1016/j.msea.2021.142218

The effects of strain rate on strain-induced α′-martensite nucleation and growth were analyzed in this work. Tension tests were performed at room temperature at strain rates of 2×10−4 s−1 and 0.5 s−1 using small polished specimens that fit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::482d1e26e3fd2483c6cc86d19e780ddc
https://doi.org/10.1016/j.msea.2021.142218

Crystal plasticity modeling of transformation plasticity and adiabatic heating effects of metastable austenitic stainless steels

Autor: Matti Lindroos, Matti Isakov, Anssi Laukkanen

Publikováno v: Lindroos, M, Isakov, M & Laukkanen, A 2022, ' Crystal plasticity modeling of transformation plasticity and adiabatic heating effects of metastable austenitic stainless steels ', International Journal of Solids and Structures, vol. 236-237, 111322, pp. 236-237 . https://doi.org/10.1016/j.ijsolstr.2021.111322

Strain induced phase transformation in metastable 301LN stainless steel generates a heterogeneous multiphase microstructure with a capability to achieve excellent strain hardening. The microstructural deformation mechanisms, prior deformation history

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e65983d73b301568c89ab7a95a46e455
https://cris.vtt.fi/en/publications/5577c976-439b-4d44-bd8a-a61ca6ad058e

Fracture toughness measurement without force data – Application to high rate DCB on CFRP

Autor: Hanna Paul, Michael May, Philipp Hahn, Masato Nishi, Matti Isakov

Publikováno v: Composites Part A: Applied Science and Manufacturing. 119:176-187

The measurement of the fracture toughness of fiber reinforced composites at high rates of loading is still, despite years of research, not well established. This can be related to challenges in applying appropriate high rate loading on the specimen,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21916c93560f6ad532f0294fce75ecde
https://doi.org/10.1016/j.compositesa.2019.01.030

The effect of strain rate on the orientation of the fracture plane in a unidirectional polymer matrix composite under transverse compression loading

Autor: Matti Isakov, Philipp Hahn, Sumito Nagasawa, Hanna Paul, Noah Ledford, Michael May

Transverse compression tests on a unidirectional composite were performed under quasi-static and high-rate loading conditions using servo-hydraulic machines as well as a direct impact Hopkinson bar. Aside the expected increase of compressive strength

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87c0e091b7f0f28d3894ecb785da1d0f
https://publica.fraunhofer.de/handle/publica/263713