Evidence map›Paper›PMID 41184480›Full record

ArticleScientific reports2025

AE-based classification and fracture process analysis of flawed marble with stress intensity factor validation.

Peng Sha, Jiakang Fan, You Lv, Jiacong Chen

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Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Peng ShaZhejiang Key Laboratory of Rock Mechanics and Geohazards, School of Civil Engineering, Shaoxing University, Shaoxing, 312000, China. shapeng@usx.edu.cn.
Jiakang FanZhejiang Key Laboratory of Rock Mechanics and Geohazards, School of Civil Engineering, Shaoxing University, Shaoxing, 312000, China.
You LvZhejiang Key Laboratory of Rock Mechanics and Geohazards, School of Civil Engineering, Shaoxing University, Shaoxing, 312000, China.
Jiacong ChenZhejiang Key Laboratory of Rock Mechanics and Geohazards, School of Civil Engineering, Shaoxing University, Shaoxing, 312000, China.

Funding

On the critical criterion of spalling failure and its spatial distribution prediction in brittle rock of deep burial tunnels 42007254On the in-situ properties of rock mass and the active reinforcement method of pumped storage power stations in rugged and precipitous mountain area LHZ23D020001
6 · The paper itself

Abstract

The stability of rock masses is critically influenced by pre-existing cracks, yet the micro-mechanisms governing cracks evolution under varying crack geometries remain inadequately quantified. This work introduces a novel, rock-specific acoustic emission (AE) classification criterion for marble, established through integrated notched semi-circular bend (NSCB) and straight-notched Brazilian disc (SNBD) tests. The proposed criterion for both tensile cracks (AF > 40 RA + 30) and shear cracks (AF < 20 RA + 30) provides a quantitative and material-adapted method for real-time crack-type discrimination. Combining AE monitoring with stress intensity factor (SIF) analysis, 9 groups of uniaxial compression tests were conducted on marble specimens with crack inclinations (15°, 30°, 45°, 60°, 75°, 90°) and lengths (5 mm, 10 mm, 15 mm). The synchronous evolution of SIF and AE parameters across four loading stages validates the AE-based classification. The test results reveal that crack inclination governs the tensile-to-shear transition, while crack length accelerates damage accumulation. It is demonstrated that the coupled AE-SIF analysis captures micro-mechanical crack evolution and bridges microscopic fracture processes with macroscopic failure modes. This study offers a reliable framework for early warning of rock instability.

Indexed as

Acoustic emission (AE)Crack classificationFracture mechanismMarblePre-existing cracksStress intensity factor (SIF)

Identifiers

PMID41184480
PMCPMC12583640

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.