Elastic modulus evolution of rocks under heating–cooling cycles

Liu，Weidong1; Zhang，Liangchi2; Luo，Ning1,3

2020-12-01

10.1038/s41598-020-70920-3

Scientific Reports   影响因子和分区

2045-2322

2045-2322

Rocks decay significantly during or after heating–cooling cycles, which can in turn lead to hazards such as landslide and stone building collapse. Nevertheless, the deterioration mechanisms are unclear. This paper presents a simple and reliable method to explore the mechanical property evolutions of representative sandstones during heating–cooling cycles. It was found that rock decay takes place in both heating and cooling processes, and dramatic modulus changes occurred near the α − β phase transition temperature of quartz. Our analysis also revealed that the rock decay is mainly attributed to the internal cracking. The underlying mechanism is the heterogeneous thermal deformation of mineral grains and the α – β phase transition of quartz.

SCI

英语

通讯

Science & Technology - Other Topics

Multidisciplinary Sciences

WOS:000573282700005

NATURE RESEARCH

2-s2.0-85089432782

Scopus

1.Laboratory for Precision and Nano Processing Technologies,School of Mechanical and Manufacturing Engineering,University of New South Wales,Sydney,2052,Australia
2.Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen,518055,China
3.State Key Laboratory for Geo-Mechanics and Deep Underground Engineering,School of Mechanics and Civil Engineering,China University of Mining and Technology,Xuzhou,221116,China

Liu，Weidong,Zhang，Liangchi,Luo，Ning. Elastic modulus evolution of rocks under heating–cooling cycles[J]. Scientific Reports,2020,10(1).

Liu，Weidong,Zhang，Liangchi,&Luo，Ning.(2020).Elastic modulus evolution of rocks under heating–cooling cycles.Scientific Reports,10(1).

Liu，Weidong,et al."Elastic modulus evolution of rocks under heating–cooling cycles".Scientific Reports 10.1(2020).