Study on dynamic response characteristics of impact of freeze-thaw saturated marble in plateau area

To study the effects that the perennial freeze-thaw environment exerts on the dynamic mechanical properties of marble, which characterizes the Qinghai-Tibet Plateau, impact tests were conducted, and saturated marble was utilized; thus, we analyzed the effect of different loading rates on its dynamic...

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Bibliographic Details
Published in:PloS one 2023-09, Vol.18 (9), p.e0290628-e0290628
Main Authors: Huang, Wuhu, Yin, Jiandong, Li, Xianglong, Hou, Defeng, Wang, Jianguo, Zhang, Zhiping, Zuo, Ting, Jian, Ximing, Li, Wendong, Yang, Yang
Format: Article
Language:English
Subjects:
Compressive strength
Critical phenomena
Density
Dynamic mechanical properties
Dynamic response
Dynamic testing
Earth Sciences
Energy absorption
Energy dissipation
Engineering and Technology
Fractal geometry
Fractals
Fracture mechanics
Fragmentation
Freeze-thaw
Freeze-thawing
High strain rate
Identification and classification
Impact tests
Loading rate
Marble
Materials
Mechanical properties
Physical Sciences
Research and Analysis Methods
Rocks
Stone
Tensile strength
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Summary:To study the effects that the perennial freeze-thaw environment exerts on the dynamic mechanical properties of marble, which characterizes the Qinghai-Tibet Plateau, impact tests were conducted, and saturated marble was utilized; thus, we analyzed the effect of different loading rates on its dynamic compressive strength, fragmentation pattern, and energy-absorbing density. The results indicate the following: (1) When 42.02s.sup.-1 [less than or equal to][epsilon][less than or equal to] 49.20s.sup.-1, the degree of fragmentation and the fractal dimension of saturated state marble is greater than that of the dry state marble; when [epsilon]
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0290628