Investigating the Relationship between the Brittleness Index and Crack Initiation Stress for the Granite under Triaxial Compression

Xi, Xun; Guo, Qifeng; Zhang, Ying; Pan, Jiliang; Cai, Meifeng

doi:10.1590/1679-78255984

Lat. Am. j. solids struct.

2020

DOI: 10.1590/1679-78255984

|View full text |Cite

Investigating the Relationship between the Brittleness Index and Crack Initiation Stress for the Granite under Triaxial Compression

Xun Xi

Qifeng Guo

Ying Zhang

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2023

Publication Types

Select...

Article2

Relationship

Self Cite0

Independent2

Authors

Journals

Cited by 2 publications

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

A New Volumetric Strain-Based Method for Determining the Crack Initiation Threshold of Rocks Under Compression

Li,

Zhong,

Pel

et al. 2023

Rock Mech Rock Eng

View full text Add to dashboard Cite

The crack initiation stress threshold ($${\sigma }_{\mathrm{ci}}$$ σ ci ) is an essential parameter in the brittle failure process of rocks. In this paper, a volumetric strain response method (VSRM) is proposed to determine the $${\sigma }_{\mathrm{ci}}$$ σ ci based on two new concepts, i.e., the dilatancy resistance state index ($${\delta }_{\mathrm{ci}}$$ δ ci ) and the maximum value of the dilatancy resistance state index difference ($$\left|{\Delta \delta }_{\mathrm{ci}}\right|$$ Δ δ ci ), which represent the state of dilatancy resistance of the rock and the shear sliding resistance capacity of the crack-like pores during the compressive period, respectively. The deviatoric stress corresponding to the maximum $$\left|{\Delta \delta }_{\mathrm{ci}}\right|$$ Δ δ ci is taken as the $${\sigma }_{\mathrm{ci}}$$ σ ci . We then examine the feasibility and validity of the VSRM using the experimental results. The results from the VSRM are also compared with those calculated by other strain-based methods, including the volumetric strain method (VSM), crack volumetric strain method (CVSM), lateral strain method (LSM) and lateral strain response method (LSRM). Compared with the other methods, the VSRM is effective and reduces subjectivity when determining the $${\sigma }_{\mathrm{ci}}$$ σ ci . Finally, with the help of the proposed VSRM, influences from chemical corrosion and confining stress on the $${\sigma }_{\mathrm{ci}}$$ σ ci and $${\Delta \delta }_{\mathrm{ci}}$$ Δ δ ci of the carbonate rock are analyzed. This study provides a subjective and practical method for determining $${\sigma }_{\mathrm{ci}}$$ σ ci . Moreover, it sheds light on the effects of confinement and chemical corrosion on $${\sigma }_{\mathrm{ci}}$$ σ ci .

show abstract

A New Volumetric Strain-Based Method for Determining the Crack Initiation Threshold of Rocks Under Compression

Li,

Zhong,

Pel

et al. 2023

Rock Mech Rock Eng

View full text Add to dashboard Cite

show abstract

Deformation behaviour, crack initiation and crack damage of weathered composite sandstone-shale by using the ultrasonic wave and the acoustic emission under uniaxial compressive stress

Abbas

Mohamed

Kudus

2023

International Journal of Rock Mechanics and Mining Sciences

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Investigating the Relationship between the Brittleness Index and Crack Initiation Stress for the Granite under Triaxial Compression

Cited by 2 publications

References 28 publications

A New Volumetric Strain-Based Method for Determining the Crack Initiation Threshold of Rocks Under Compression

A New Volumetric Strain-Based Method for Determining the Crack Initiation Threshold of Rocks Under Compression

Deformation behaviour, crack initiation and crack damage of weathered composite sandstone-shale by using the ultrasonic wave and the acoustic emission under uniaxial compressive stress

Contact Info

Product

Resources

About