Insights From a Combined Analysis of Acoustic Emission Signals for Water-Bearing Rocks in Four-Point Bending Tests: Failure Mode Classification and Strength Degradation

被引：9

作者：

Zhu, Jun ^{[1
,2
]}

Deng, Jianhui ^{[2
]}

机构：

[1] Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610299, Peoples R China

[2] Sichuan Univ, Coll Water Resources & Hydropower, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Peoples R China

来源：

ROCK MECHANICS AND ROCK ENGINEERING | 2023年 / 56卷 / 05期

关键词：

Acoustic emission; Combined analysis; Water bearing; Failure mode classification; Strength degradation; Four-point bending tests; MECHANICAL-PROPERTIES; CRACK CLASSIFICATION; EVOLUTION; HUMIDITY; CONCRETE;

D O I：

10.1007/s00603-023-03252-z

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

HighlightsWater-bearing causes substantial reductions in the tensile strength of rocks under four-point bending.There is an obvious correlation between dominant frequency bands of acoustic emission waveform and failure modes.The water-bearing effect on rock tensile strength can be characterized by the failure components associated with it.Tensile strength degradation of rocks under four-point bending can be attributed to friction weakening and fracture energy reduction.

引用

页码：3843 / 3855

页数：13

共 39 条

[11] An Experimental Investigation of Moisture-Induced Softening Mechanism of Marble Based on Quantitative Analysis of Acoustic Emission Waveforms [J].

Huang, Yiming ;

Deng, Jianhui ;

Zhu, Jun .

APPLIED SCIENCES-BASEL, 2019, 9 (03)

[12]

Jia X., 2013, Experimental study on acoustic emission Eigen-frequency spectrum features of strain bursts

[13] Correlations between the physical and mechanical properties of sandstones with changes of water content and loading rates [J].

Kim, Eunhye ;

Stine, Michael A. ;

Martins de Oliveira, Davi Bastos ;

Changani, Hossein .

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2017, 100 :255-262

[14] ASSESSMENT OF DAMAGE IN ROCK USING THE KAISER EFFECT OF ACOUSTIC-EMISSION [J].

LI, C ;

NORDLUND, E .

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES & GEOMECHANICS ABSTRACTS, 1993, 30 (07) :943-946

[15]

Li L., 2017, DOMINANT FREQUENCIES

[16] Dominant Frequency Characteristics of Acoustic Emissions in White Marble During Direct Tensile Tests [J].

Li, L. R. ;

Deng, J. H. ;

Zheng, L. ;

Liu, J. F. .

ROCK MECHANICS AND ROCK ENGINEERING, 2017, 50 (05) :1337-1346

[17]

Manthei G., 2008, Acoustic Emission Testing, P239, DOI DOI 10.1007/978-3-540-69972-9_11

[18]

Mardalizad A, 2017, FRAT INTEGRITA STRUT, P504, DOI 10.3221/IGF-ESIS.41.62

[19] Effects of humidity and temperature on subcritical crack growth in sandstone [J].

Nara, Yoshitaka ;

Morimoto, Kazuya ;

Yoneda, Tetsuro ;

Hiroyoshi, Naoki ;

Kaneko, Katsuhiko .

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2011, 48 (7-8) :1130-1140

[20] Crack classification in concrete based on acoustic emission [J].

Ohno, Kentaro ;

Ohtsu, Masayasu .

CONSTRUCTION AND BUILDING MATERIALS, 2010, 24 (12) :2339-2346

← 1 2 3 4 →