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The developed experimental setup is capable of generating very high strain rates up to 1320\u00a0s\u22121 with the satisfaction of stress equilibrium, which are essential to reproduce the dynamic pulverization observed in nature and obtain dynamic stress\u2013strain responses accurately. High-speed imaging revealed that cracks initiate and propagate along the grain boundaries at very high speeds, while the dynamic stress\u2013strain response suggested that energy dissipated into the fracture increases with stronger impacts. In addition, we show that the apparatus is capable of producing particle size distributions partly similar to those in naturally pulverized rocks of large-scale strike\u2013slip faults. Thus, our developed system with compact dimensions opens new ways to understand the dynamics of the rock pulverization in off-fault regions of large-scale strike\u2013slip faults.<\/jats:p>","DOI":"10.1063\/5.0151448","type":"journal-article","created":{"date-parts":[[2023,9,19]],"date-time":"2023-09-19T12:51:55Z","timestamp":1695127915000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":3,"title":["A split Hopkinson pressure bar for experimental investigation of dynamic pulverization under very high strain rates"],"prefix":"10.1063","volume":"94","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7945-5870","authenticated-orcid":false,"given":"Eranga Gayanath","family":"Jayawickrama","sequence":"first","affiliation":[{"name":"Department of Earth Science, Graduate School of Science, Tohoku University 1 , 6-3, Aramaki Aza Aoba, Aoba, Sendai, Miyagi 980-8578, Japan"},{"name":"Earth and Planetary Systems Science Program, Graduate School of Advanced Science and Engineering, Hiroshima University 2 , 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-0761-2822","authenticated-orcid":false,"given":"Takuma","family":"Sekiguchi","sequence":"additional","affiliation":[{"name":"Department of Earth Science, Graduate School of Science, Tohoku University 1 , 6-3, Aramaki Aza Aoba, Aoba, Sendai, Miyagi 980-8578, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8493-4051","authenticated-orcid":false,"given":"Jun","family":"Muto","sequence":"additional","affiliation":[{"name":"Department of Earth Science, Graduate School of Science, Tohoku University 1 , 6-3, Aramaki Aza Aoba, Aoba, Sendai, Miyagi 980-8578, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3645-9505","authenticated-orcid":false,"given":"Sando","family":"Sawa","sequence":"additional","affiliation":[{"name":"Department of Earth Science, Graduate School of Science, Tohoku University 1 , 6-3, Aramaki Aza Aoba, Aoba, Sendai, Miyagi 980-8578, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9633-5179","authenticated-orcid":false,"given":"Hiroyuki","family":"Nagahama","sequence":"additional","affiliation":[{"name":"Department of Earth Science, Graduate School of Science, Tohoku University 1 , 6-3, Aramaki Aza Aoba, Aoba, Sendai, Miyagi 980-8578, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5916-7524","authenticated-orcid":false,"given":"Yoshio","family":"Kono","sequence":"additional","affiliation":[{"name":"Geodynamics Research Center, Ehime University 3 , 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-2446-5114","authenticated-orcid":false,"given":"Kyung-Oh","family":"Bae","sequence":"additional","affiliation":[{"name":"Korea Research Institute of Standards and Science (KRISS) 4 , 267 Gajeong-Ro, Yuseong-Gu, Daejeon 34113, Republic of Korea"},{"name":"5 PRETECH CO., LTD. 403-2 Sannoucho, Inage-ku, Chiba, 263-0002, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4922-2427","authenticated-orcid":false,"given":"Hyung-Seop","family":"Shin","sequence":"additional","affiliation":[{"name":"6 Department of Mechanical and Robotics Engineering, Andong National University, 1375, Gyeongdong-ro (SongCheon-dong), Andong, Gyeongsangbuk-do 36729, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"317","published-online":{"date-parts":[[2023,9,19]]},"reference":[{"key":"2023091912514323200_c1","doi-asserted-by":"publisher","first-page":"301","DOI":"10.1007\/s00024-005-0023-9","article-title":"Geological observations of damage asymmetry in the structure of the San Jacinto, San Andreas and Punchbowl faults in Southern California: A possible indicator for preferred rupture propagation direction","volume":"163","year":"2006","journal-title":"Pure Appl. 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