Abstract
A better understanding of the nucleation process of an earthquake is of practical importance for early warning and hazard assessment. In present chapter, chaotic nucleation of an earthquake is investigated numerically using spring-mass slider with the rate- and state-dependent friction (RSF) law. The main focus during the numerical simulations is to identify the onset of chaotic motion showing irregular changes in frictional stress as well as slip velocity. It is observed that the chaotic tendency of the sliding system increases with number of state variables in the RSF model. Moreover, the stiffness at which chaos occurs also increases with number of the state variables. Thus, the present study justifies that the RSF laws could also be useful to study the multiscale nature of friction of hard surfaces such as metals and rocks.
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Sinha, N., Singh, A.K., Vasudeo, A.D. (2021). The Effect of State Variables on Nucleation of Earthquake Using the Rate and State Friction. In: Kalamkar, V., Monkova, K. (eds) Advances in Mechanical Engineering. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-3639-7_28
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DOI: https://doi.org/10.1007/978-981-15-3639-7_28
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