Importance of Precipitation on the Slowdown of Creep behavior induced by Pressure-Solution
(2025) Journal of Engineering Mechanics — Vol. 151, n° 7, p. 4025025 (2025)
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- Authors
Sac-Morane, Alexandre 
Veveakis, Manolis
- Abstract
- Pressure-solution is a chemo-mechanical process, involving dissolution at grain/asperity contacts and precipitation away from them. It induces a compaction in time of rocks and sediments. The present study investigates numerically the impact of precipitation on the slowdown of creep behavior induced by pressure-solution. A recently published framework, called the Phase-Field Discrete Element Model, is carefully calibrated against existing indentation experiments and validated for other rate-limiting scenarios. It is shown that when precipitation is relatively slow, the slowdown of pressure-solution is due to a chemical mechanism (accumulation of solute concentration within the pore space), whereas, at fast precipitation, the slowdown is due to a mechanical mechanism (stress reduction at the contact).
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Citations
Sac-Morane, A., Rattez, H., & Veveakis, M. (2025). Importance of Precipitation on the Slowdown of Creep behavior induced by Pressure-Solution. Journal of Engineering Mechanics, 151(7), 4025025. https://doi.org/10.1061/JENMDT.EMENG-836 (Original work published 2025)