Study on the whole dynamical fracture process of sandstone samples
Source abstract
Abstract
Abstract The single cleavage drilled compression specimens of sandstone were impacted by the large-diameter split Hopkinson pressure bar, the whole model-I dynamical fracture process was successfully observed. A crack propagation gauge is used to monitor the key time moment of dynamic initiation, propagation, arrest and re-initiation, respectively. The fractal crack extension model is used to analysis the propagation speed of tortuous crack, and with further combination of the experimental-numerical-analytical method, to determine dynamic initiation toughness, dynamic propagation toughness, dynamic arrest toughness, and dynamic re-initiation toughness of sandstone. The results show that in the process of crack propagation, the crack propagation path is torturous, for this curved path, the value of the universal function, which is characterized by the crack’s velocity, is smaller than that with a straight path. The dynamic propagation toughness thus obtained is closer to its real value by using the fractal model. Sandstone’s dynamic initiation toughness is greater than the dynamic arrest toughness, and dynamic initiation toughness is slightly bigger than the dynamic re-initiation toughness.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Rock Mechanics and Modeling · Landslides and related hazards · Geophysical Methods and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
Show source-provided references
1. ASTM E1221 (1988) Standard test method for determining plane-strain crack arrest fracture toughness, KIa, of ferritic steels. Annual Book of ASTM Standards
2. Bazant ZP, Caner FC (2013) Comminution of solids caused by kinetic energy of high shear strain rate, with implications for impact, shock, and shale fracturing. Proc Natl Acad Sci 110(48):19291–1929410.1073/pnas.1318739110 ↗
3. Chen YM, Wilkins ML (1977) Numerical analysis of dynamic crack problems. In: Sih GC (ed) Mechanics of fracture, vol 4. Noordhoff, Leyden, pp 216–224
4. Dabloul R, Jin BC, Jha B (2023) Failure analysis of the edge-notched beam test on fluid-exposed Berea sandstone. Acta Geotech. https://doi.org/10.1007/s11440-023-01843-210.1007/s11440-023-01843-2 ↗
5. Dai F, Chen R, Iqbal MJ, Xia KW (2010) Dynamic cracked chevron notched Brazilian disc method for measuring rock fracture parameters. Int J Rock Mech Min Sci 47(4):606–61310.1016/j.ijrmms.2010.04.002 ↗
6. Fan TY (2006) Principle and application of fracture dynamics. Beijing Institute of Technology Press, Beijing, pp 38–43
7. Freund LB (1990) Dynamic facture mechanics. Cambridge University Press, Cambridge10.1017/CBO9780511546761 ↗
8. Grégoire D, Maigre H, Réthoré J, Combescure A (2007) Dynamic crack propagation under mixed-mode loading: comparison between experiments and X-FEM simulations. Int J Solids Struct 44(20):6517–653410.1016/j.ijsolstr.2007.02.044 ↗
9. Huang LX (1989) Propagation and control of crack in rock material under dynamic loading. Rock Soil Mech 1:53–60
10. Irwin GR, Wells AA (1965) A continuum mechanics view of crack propagation. Metall Rev 91:223–27010.1179/095066065790138384 ↗
11. Joudon V, Protemont G, Lauro F, Bennani B (2014) Experimental procedure to characterize the mode I dynamic fracture toughness of advanced epoxy resins. Eng Fract Mech 126:166–17710.1016/j.engfracmech.2014.05.010 ↗
12. Liu DS, Li XB (1999) Mechanical impact dynamics. Science Press, Beijing
13. Lu FY, Chen R, Lin YL (2013) Hopkinson bar techniques. Science Press, Beijing
14. Ni M, Gou XP, Wang QZ (2013a) Stress intensity factor formulas for DCDC and SCDC specimens. Chin J Theoretical Appl Mech 45(1):94–102
15. Ni M, Gou XP, Wang QZ (2013b) Test method for rock dynamic fracture toughness using single cleavage drilled compression specimen impacted by split Hopkinson pressure bar. Eng Mech 30(1):365–372
16. Ravi-Chandar K (2004) Dynamic fracture. Elsevier, pp 49–6910.1016/B978-008044352-2/50004-1 ↗
17. Ravi-Chandar K, Knauss WG (1984) An experimental investigation into dynamic fracture: III—On steady state crack propagation and branching. Int J Fracture 26:141–15410.1007/BF01157550 ↗
18. Rittel D, Maigre H (1996) An investigation of dynamic crack initiation in PMMA. Mech Mater 23:229–23910.1016/0167-6636(96)00014-2 ↗
19. Wang LL (2010) Foundation of stress waves, 2nd edn. National Defense Industry Press, Beijing
20. Wang QZ (2015) Perception about the study and application of disc, circular ring and circular hole. Mech Eng 37(3):372–376
21. Wang XY, Lu FY, Lin YL (2006) Study on interfacial friction effect in the SHPB tests. Explosion Shock Waves 26(2):134–139
22. Wang QZ, Yang JR, Zhang CG (2015) Sequential determination of dynamic initiation and propagation toughness of rock using experimental-numerical-analytical method. Eng Fract Mech 141:78–9410.1016/j.engfracmech.2015.04.025 ↗
23. Xi DY, Zhong SJ (1994) Study of growth speed of rock crack and inquiry of earthquake process. Rock Soil Mech 15(3):51–58
24. Xie HP (1989) Research on micro fracture fractal model of marble. Chin Sci Bull 34(5):365–36810.1360/csb1989-34-5-365 ↗
25. Xie HP (1996) Introduction of fractal-rock mechanics. Science Press, Beijing
26. Yang JR, Zhang CG, Zhou Y, Wang QZ (2015) A new method for determining dynamic fracture toughness of rock using SCDC specimens. Chin J Rock Mech Eng 34(2):279–292
27. Zhang QB, Zhao J (2013a) Effect of loading rate on fracture toughness and failure micro mechanisms in marble. Eng Fract Mech 102:288–30910.1016/j.engfracmech.2013.02.009 ↗
28. Zhang QB, Zhao J (2013b) Determination of mechanical properties and full-field strain measurements of rock material under dynamic loads. Int J Rock Mech Min Sci 60:423–43910.1016/j.ijrmms.2013.01.005 ↗
29. Zhang QB, Zhao J (2014) A review of dynamic experimental techniques and mechanical behavior of rock materials. Rock Mech Rock Eng 47(4):1411–147810.1007/s00603-013-0463-y ↗
30. Zhang CG, Zhou Y, Yang JR (2014a) A series of edge cracked flattened ring (DISC) specimens for determining fracture toughness: numerical analysis and calibration results. Chin J Rock Mech Eng 33(8):1546–1555
31. Zhang CG, Zhou Y, Yang JR (2014b) Determination of model I dynamic fracture toughness of rock using edge cracked flattened ring specimen. Shui Li Xue Bao 45(6):691–700
32. Zhou ZL, Li XB, Zhao GY (2005) Three dimensional numerical analysis of perfect loading wave form of rock with SHPB. Mining Metall Eng 25(3):18–20