Fracture Process and Failure Mode of Brazilian Discs with Cracks of Different Angles: A Numerical Study

Xiaoyan Luo, Guoyan Zhao, Peng Xiao () and Wengang Zhao
Additional contact information
Xiaoyan Luo: School of Resources and Safety Engineering, Central South University, Changsha 410083, China
Guoyan Zhao: School of Resources and Safety Engineering, Central South University, Changsha 410083, China
Peng Xiao: School of Resources and Safety Engineering, Central South University, Changsha 410083, China
Wengang Zhao: Yunnan Energy Investment New Energy Industrial Park Investment Development Co., Ltd., Kunming 650501, China

Mathematics, 2022, vol. 10, issue 24, 1-18

Abstract: In order to determine the effect of internal cracks on the tensile failure of materials, a hybrid finite–discrete element method was used to analyze the Brazilian disc test with cracks of different angles. When the pre-crack angle is between 0° and 60°, the wing crack is initiated from the pre-crack end. When the pre-crack is 90°, the crack initiated from the pre-crack center. When the pre-crack angle is between 0° and 60°, the maximum principal stress and plastic strain are concentrated at the pre-crack end. When the pre-crack angle is 90°, the maximum principal stress and plastic strain are concentrated in the pre-crack center. As the crack angle increased from 0° to 90°, the failure mode of Brazilian discs with cracks transits from splitting into two parts to splitting into four parts. The influence of crack length is further studied. When the crack length is less than 5 mm, the crack angle has little influence on the disc failure mode; Brazilian discs with cracks of different angles undergoes splitting failure along the loading axis. When the crack length is larger than 5 mm, the crack angle has a great effect on the disc failure mode.

Keywords: Brazilian disc with cracks; stress field; fracture process zone; numerical simulation (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2227-7390/10/24/4808/pdf (application/pdf)
https://www.mdpi.com/2227-7390/10/24/4808/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jmathe:v:10:y:2022:i:24:p:4808-:d:1006851

Access Statistics for this article

Mathematics is currently edited by Ms. Emma He

More articles in Mathematics from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().