Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

Variation of Cone Crack Shape in Ceramic Materials According to Spherical Impact Velocity

입자충격속도에 따른 세라믹재료의 콘크랙 형상 변화

  • Published : 2002.02.01
Download PDF
⟨ Previous Next ⟩

Abstract

Damage behaviors induced in silicon carbide by an impact of particle having different material and size were investigated. Especially, the influence of the impact velocity of particle on the cone crack shape developed was mainly discussed. The damage induced by spherical impact was different depending on the material and size of particles. Ring cracks on the surface of specimen were multiplied by increasing the impact velocity of particle. The steel particle impact produced larger ring cracks than that of SiC particle. In the case of high velocity impact of SiC particle, radial cracks were produced due to the inelastic deformation at the impact site. In the case of the larger particle impact, the damage morphology developed was similar to the case of smaller particle one, but a percussion cone was farmed from the back surface of specimen when the impact velocity exceeded a critical value. The zenithal angle of cone cracks developed into SiC material decreased monotonically with increasing of the particle impact velocity. The size and material of particle influenced more or less on the extent of cone crack shape. An empirical equation, $\theta$= $\theta$$\sub$st/, v$\sub$p/(90-$\theta$$\sub$st/)/500 R$\^$0.3/($\rho$$_1$/$\rho$$_2$)$\^$$\frac{1}{2}$/, was obtained as a function of impact velocity of the particle, based on the quasi-static zenithal angle of cone crack. It is expected that the empirical equation will be helpful to the computational simulation of residual strength in ceramic components damaged by the particle impact.

Keywords

References

  1. Maekawa, I., SHin, H. S. and Miyata, H., 1991, 'Damage Induced in SiC by a Partical Impact,' Eng. Fract. Mech., Vol. 40, pp. 879-886 https://doi.org/10.1016/0013-7944(91)90247-X
  2. Shockey, D. A., Erlich, D. C. and K. C., 1990, 'Particle Impact Damage in Silicon Nitride,' J. Am. Ceram. Soc., Vol. 73, pp. 1613-1619 https://doi.org/10.1111/j.1151-2916.1990.tb09804.x
  3. Akimune, Y., 1989, 'Spherical-Impact Damage and Strength Degradation in silicon Nitride,' J. Am. Ceram. Soc., Vol. 27, pp. 1422-1428 https://doi.org/10.1111/j.1151-2916.1989.tb07664.x
  4. Bennison S. J., Jagota A. and Smith C. A., 1999, 'Fracture of Glass/ Poly(vinyl buytral)($Buatacite^{circledR}$) Laminates in Biaxial Flexu-re,' J. Am. Ceram. Soc, Vol. 82, No. 7, pp. 1761-1770 https://doi.org/10.1111/j.1151-2916.1999.tb01997.x
  5. Flocker F. W. and Dharani L. R., 1997, 'Modelling Fracture in Laminated Architectural Glass Subject to Low Velocity Impact,' J. Mater. Sci., Vol. 32, pp. 2587-2594 https://doi.org/10.1023/A:1018698900942
  6. 신형섭, 김진한, 오상엽, 2001, '취성재료의 펀칭가공을 위한 충격장치 개발 및 펀칭기구 해석,' 대한기계학회논문집(A), Vol. 25, No. 4, pp. 629-636
  7. Cook, R. F. and Pharr, George M., 1990, 'Direct Observation and Analysis of Indentation Cracking in Glasses and Ceramics,' J. Am. Ceram. Soc., Vol. 73, pp. 787-817 https://doi.org/10.1111/j.1151-2916.1990.tb05119.x
  8. Kocer C. and Collins R. E., 1998, 'Angle of Hertzian Cone Cracks,' J. Am. Ceram. Soc., Vol. 81, No. 7, pp. 1736-1742 https://doi.org/10.1111/j.1151-2916.1998.tb02542.x
  9. Lawn, B. R., Wiederhom, S. M. and Robert, D. E., 1984, 'Effect of Sliding Friction Forces on the Strength of Brittle Materials,' J. Mater. Sci., Vol. 19, pp. 2561-2569 https://doi.org/10.1007/BF00550810
  10. Chaudhri, M. M., Phillips, M. A., 1990, 'Quasi-static Indendation Cracking of Thermally Tempered Soda-lime Glass with Spherical Vickers Indenters,' Phil. Mag. A, Vol. 62, No. 1, pp. 1-27 https://doi.org/10.1080/01418619008244333
  11. Lawn, B. R., Wilshaw, T. R., and Hartley, N. E. W., 1974, 'A computer Simulation Study of Hertzian Cone Crack Growth,' Int. J. Fracture, Vol. 10, No. 1, pp. 1-16 https://doi.org/10.1007/BF00955075
  12. Knight C. C., Swain M. V., Chaudhri M. M., 1977, 'Impact of Small Steel Spheres on Glass Surface,' J. Mater. Sci., Vol. 12, pp. 1573-1586 https://doi.org/10.1007/BF00542808
  13. Lawn, B. R., 1998, 'Indentation of Ceramics with Spheres:A Century after Hertz,' J. Am. Ceram. Soc., Vol. 8, pp. 1977-1994 https://doi.org/10.1111/j.1151-2916.1998.tb02580.x
  14. Tasi, T. M., 1971, 'Dynamic Contact Stresses Produced by the Impact of an Axisymmetrical Projectile on an Elastic Half-Space,' Int. J. Solid Structure, Vol. 7, pp. 543-558 https://doi.org/10.1016/0020-7683(71)90114-4
  15. 신형섭, 1996, '탄화규소에 구형입자의 정적압입 및 충격시 부하속도의 영향,' 대한기계학회논문집(A), Vol. 20, No. 12, pp. 3847-3855
  16. 신형섭, Maekawa, I., 서창민, 1992, '탄화규소세라믹의 충격손상 및 강도저하에 미치는 입자의 재질 및 크기의 영향,' 대한기계학회논문집, Vol. 16, No. 10, pp. 1869-1876
  17. Suzuki, A, Natsumura, T, Sugiyama, S, Teramae, T and Hamada, S, 1990, 'Particle Impact Damage in Silicon Carbide,' Trans. Japan Soc. Mech. Eng.(Ser. A), Vol. 56, No. 532, pp. 2431-2436 https://doi.org/10.1299/kikaia.56.2431

Cited by

  1. A Steel Ball Impact Damage Behavior of RS-SiC Ceramic Materials vol.34, pp.8, 2010, https://doi.org/10.3795/KSME-A.2010.34.8.1015