Back to Search
Start Over
Dynamic non-linear Mohr–Coulomb strength criterion for hybrid basalt–polypropylene fibre-reinforced concrete under impact loading
- Source :
- Archives of Civil and Mechanical Engineering. 21
- Publication Year :
- 2021
- Publisher :
- Springer Science and Business Media LLC, 2021.
-
Abstract
- Variations in the dynamic triaxial strength of hybrid basalt–polypropylene fibre-reinforced concrete (HBPRC) with strain rate and confining pressure were investigated, and a dynamic non-linear Mohr–Coulomb (M–C) strength criterion for HBPRC was established. The results showed that the dynamic strength of HBPRC increased non-linearly with the strain rate and confining pressure; however, the strain rate effect decreased with an increase in the confining pressure. The restraint effect of the basalt fibre and polypropylene fibre on the cracks enhanced the strain rate effect of the dynamic strength of concrete. The cohesion of HBPRC increased with the strain rate and confining pressure but decreased with an increase in the amount of fibre monofilaments. However, the internal friction angle showed a reverse trend. The established dynamic non-linear M–C strength criterion reflected the relationship of the dynamic strength of HBPRC with the confining pressure and strain rate, as well as the effect of fibre content on dynamic strength. The less average standard deviation and the tangential relationship between the strength envelope and the Mohr’s circle of stress demonstrated the applicability of the established dynamic non-linear M–C strength criterion.
- Subjects :
- Polypropylene
Structural material
Materials science
Mechanical Engineering
020101 civil engineering
02 engineering and technology
Mohr–Coulomb theory
Strain rate
Overburden pressure
0201 civil engineering
Stress (mechanics)
chemistry.chemical_compound
020303 mechanical engineering & transports
0203 mechanical engineering
chemistry
Cohesion (geology)
Composite material
Envelope (mathematics)
Civil and Structural Engineering
Subjects
Details
- ISSN :
- 16449665
- Volume :
- 21
- Database :
- OpenAIRE
- Journal :
- Archives of Civil and Mechanical Engineering
- Accession number :
- edsair.doi...........861b54ad1a070a15685c024ede6d007d