PSI - Issue 32

ScienceDirect Available online at www.sciencedirect.com Sci nceD rect StructuralIntegrity Procedia 00 (2021) 000 – 000 Available online at www.sciencedirect.com ScienceDirect StructuralIntegrity Procedia 00 (2021) 000 – 000 Available online at www.sciencedirect.com

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 32 (2021) 10–16

© 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XXIIth Winter School on Continuous Media Mechanics” Abstract Quasi-static tests for uniaxial compression of fused silica cylinders have been carried out. The destruction process was accompanied by fractoluminescence, which is typical for quartz. Fractoluminescence was recorded by two methods: a high-speed camera, which, in addition to luminescence, recorded the entire process of destruction of the sample, and using a photomultiplier with a high time resolution to analyze the dynamics of the fragmentation process. In most experiments, two stages of destruction were recorded. Each of which was accompanied by intense fractoluminescence. A statistical analysis of the fragments mass (size) distribution and of the intervals between fractoluminescence pulses has been carried out. © 2021 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer- review under responsibility of the scientific committee of the XXIIth Winter School on Continuous Media Mechanics” Keywords: Quartz; quasi-static loading; fragmentation; power law; fractoluminescence. 1. Introduction The research of statistical regularities of fragmentation is a subject of active study in connection with the fundamental and applied significance of the problem by Davydova and et. al. (2016), Greiner and Stoker (1984), Grady (2011), Katsuragi and et al. (2003), Koshelev and et al. (1971), Meibom and Balslev (1996), Mott (1943), Naimark and et. al. (2017). The fragmentation phenomenon is the separation of a rigid body into parts as a result of the action of a quasi-static or dynamic loading. Understanding the processes that occur in this case allows to realize the optimal conditions for the partial or complete destruction of materials (objects) that interfere with work (for XXIIth Winter School on Continuous Media Mechanics Experimental study of fragmentation of fused quartz cylinders under quasi-static loading with the fractoluminescence recording Irina A. Bannikova *, Sergey V. Uvarov Institute of Continuous Media Mechanics Ural Branch of RAS, Academika Koroleva st., 1, Perm, 614013, Russia Abstract Quasi-static tests for uniaxial compression of fused silica cylinders have been carried out. The destruction process was accompanied by fractol minescence, which is typical for quartz. Fractolumin scence was recorded by two methods: a high-speed camera, which, in addition to luminescen e, recorded the entire process of destruction of the sample, and using a photomulti li r with a high time resoluti t analyze the dynamics of the fragmentation process. In m st experiments, two stages of destruction ere recorded. Each of which was accompanied by intens fr ctoluminescence. A statistical analysis of the fragments mass (size) distributi n and of t e intervals between fractoluminescence pulses has been arried out. © 2021 The Authors. Published y ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer- review u der responsibility of the scientific committee of the XXIIth Winter School on Continuous Media Mechanics” Keywords: Quartz; quasi-static loading; fragmentation; power law; fractoluminescence. 1. Introduction The research of statistical regularities of fragmentation is a subject of active study in connection with the fundamental and applied s gnificance of the problem by Davydova and et. al. (2016), Gre er a d St ker (1984), Gra y (2011), Katsuragi and et al. (2003), Koshe v and et al. (1971), Meibom and Balsl v (1996), Mott 43 Naimark and et. l. (2017). Th fragmentation p nome on is the separation of a rigid body into parts as a result of the action of a quasi-static or dynamic lo d ng. Understanding processes that occur in this case allows to realize optimal conditions for the partial or complete de ruction of material (objects) that interfere with w rk (for XXIIth Winter School on Continuous Media Mechanics Experimental study of fragmentation of fused quartz cylinders under quasi-static loading with the fractoluminescence recording Irina A. Bannikova *, Sergey V. Uvarov Institute of Continuous Media Mechanics Ural Branch of RAS, Academika Koroleva st., 1, Perm, 614013, Russia

* Corresponding author. Tel.: +7-234-237-8312. E-mail address: malgacheva@icmm.ru * Corresponding author. Tel.: +7-234-237-8312. E-mail address: malgacheva@icmm.ru

2452-3216 © 2021 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer- review under responsibility of the scientific committee of the XXIIth Winter School on Continuous Media Mechanics” 2452-3216 © 2021 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer- review under responsibility of the scientific committee of the XXIIth Winter School on Continuous Media Mechanics”

2452-3216 © 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XXIIth Winter School on Continuous Media Mechanics” 10.1016/j.prostr.2021.09.003