3D SPH Modeling of Heterogeneous Materials Failure under Dynamic Loads

Abstract:

A mesh-free smoothed particle hydrodynamics (SPH) method is developed to simulate the failure of heterogeneous materials under different strain rates on 3D compression specimens. An elasto-plastic damage model is adopted to describe the pressure-sensitive strength behavior of the heterogeneous materials. Numerical simulations are performed for the constructed 3D artificial granite specimens. Results demonstrate that the proposed 3D modeling method can better resemble the rock microstructure and heterogeneity and it can be further used in other applications.

• Periodical: Key Engineering Materials (Volumes 535-536)
• Pages: 553-556
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.535-536.553
• Online since: January 2013
• Authors: Guo Wei Ma, Xia Wei Yi, Xue Jun Wang
• Keywords: Artificial Granite Specimens, Dynamic Load, Elasto-Plastic Damage Model, Heterogeneous Materials, Smoothed Particle Hydrodynamic (SPH)

References

[1] Jaeger JC, Cook NGW, Zimmerman RW. Fundamentals of rock mechanics. 4th ed. Malden, MA: Blackwell; 2007.

[2] Wawersik WR, Brace WF. Post-failure behavior of a granite and diabase. Rock Mech Rock Eng 1971; 3:61–85.

DOI: 10.1007/bf01239627

[3] Hallbauer DK, Wagner H, Cook NGW. Some observations concerning the microscopic and mechanical behaviour of quartzite specimens in stiff, triaxial compression tests. Int J Rock Mech Min Sci 1973; 10:713–726.

DOI: 10.1016/0148-9062(73)90015-6

[4] Blair SC, Cook NGW. Analysis of compressive fracture in rock using statistical techniques: Part I. Anon-linear rule-based model. Int J Rock Mech Min Sci 1998; 35: 837–848.

DOI: 10.1016/s0148-9062(98)00008-4

[5] Tang CA, Liu H, Lee PKK, Tsui Y, Tham LG. Numerical studies of the influence of microstructure on rock failure in uniaxial compression—Part I:effectof heterogeneity. Int J Rock Mech Min Sci 2000; 37:555–569.

DOI: 10.1016/s1365-1609(99)00121-5

[6] Fang Z, Harrison JP. Development of a local degradation approach to the modeling of brittle fracture in heterogeneous rocks. Int J Rock Mech Min Sci 2002; 39:443–457.

DOI: 10.1016/s1365-1609(02)00035-7

[7] Potyondy DO, Cundall PA. A bonded-particle model for rock. Int J Rock Mech Min Sci 2004; 41:1329–1364.

DOI: 10.1016/j.ijrmms.2004.09.011

[8] Chen S, Yue ZQ, Tham LG. Digital image-based numerical modeling method for prediction of in homogeneous rock failure. Int J Rock Mech Min Sci 2004; 41:939–957.

DOI: 10.1016/j.ijrmms.2004.03.002

[9] Holmquist TJ, Templeton DW, Bishnoi KD. Constitutive modeling of aluminum nitride for large strain, high-strain rate, and high-pressure applications. Int J Impact Eng 2001; 25(3):211–231.

DOI: 10.1016/s0734-743x(00)00046-4

[10] Malvar LJ, Crawford JE, Wesevich JW, Simons D. A plasticity concrete material model for DYNA3D. Int J Impact Eng 1997; 19(9–10):847–873.

DOI: 10.1016/s0734-743x(97)00023-7

[12] Yu MH, He LN. A new model and theory on yield and failure of materials under the complex stress state. In: Jono M, Inoue T (eds) Mechanical behaviour of material—VI. Pergamon, Oxford 1991.

DOI: 10.1016/b978-0-08-037890-9.50389-6