Friction of Shear-Fracture Zones
Riikilä, T., Pylväinen, J. I., & Åström, J. (2017). Friction of Shear-Fracture Zones. Physical Review Letters, 119(25), Article 255501. https://doi.org/10.1103/PhysRevLett.119.255501
Published in
Physical Review LettersDate
2017Copyright
© 2017 American Physical Society. Published in this repository with the kind permission of the publisher.
A shear fracture of brittle solids under compression undergoes a substantial evolution from the initial
microcracking to a fully formed powder-filled shear zone. Experiments covering the entire process are
relatively easy to conduct, but they are very difficult to investigate in detail. Numerically, the large strain
limit has remained a challenge. An efficient simulation model and a custom-made experimental device are
employed to test to what extent a shear fracture alone is sufficient to drive material to spontaneous selflubrication.
A “weak shear zone” is an important concept in geology, and a large number of explanations,
specific for tectonic conditions, have been proposed. We demonstrate here that weak shear zones are far
more general, and that their emergence only demands that a microscopic, i.e., fragment-scale, stress
relaxation mechanism develops during the fracture process.
Publisher
American Physical SocietyISSN Search the Publication Forum
0031-9007Publication in research information system
https://converis.jyu.fi/converis/portal/detail/Publication/27822527
Metadata
Show full item recordCollections
Related items
Showing items with similar title or keywords.
-
Discrete element model for viscoelastic materials with brittle fracture : applications on glacier dynamics
Riikilä, Timo (University of Jyväskylä, 2017) -
Mechanics of Moving Materials
Banichuk, Nikolay; Jeronen, Juha; Neittaanmäki, Pekka; Saksa, Tytti; Tuovinen, Tero (Springer, 2014) -
Bone mineral density and quality in older people : a study in relation to exercise, and fracture occurrence, and the assessment of mechanical properties
Cheng, Sulin (1994)The study examined bone mineral content (BMC) and density (BMD) in older men and women. The purpose was to relate BMD to physical exercise, to examine the association between BMD and the risk of fractures and to assess the ... -
Kotikuntoutusintervention vaikutus kognitioon ikääntyneillä ihmisillä, joilla on gerastenia tai sen esiaste
Uotila, Henri (2021)Viimeisen 20 vuoden aikana gerastenian käsite on vakiintunut tiedeyhteisössä kuvaamaan ikääntymiseen liitännäistä oireyhtymää, joka johtaa ikääntyneen henkilön lisääntyneeseen haurauteen sekä heikentyneeseen stressinsietokykyyn. ... -
Dynamic aspects in brittle fragmentation
Linna, Riku (University of Jyväskylä, 2004)