한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제33권10호
  • /
  • Pages.865-873
  • /
  • 2016
  • /
  • 1225-9071(pISSN)
  • /
  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지
DOI QR코드

DOI QR Code

단공 (端孔) V-노치가 있는 PMMA 판의 파괴기준에 관한 연구

A Study on Fracture Criterion of PMMA Plates Having a V-Notch with an End Hole

  • 추원철 (경남대학교 대학원 첨단공학과) ;
  • 조상봉 (경남대학교 기계공학부) ;
  • 윤존도 (경남대학교 나노신소재공학과)
  • Choo, Won Chul (Graduate School, Department of Advanced Engineering, Kyungnam University) ;
  • Cho, Sang Bong (School of Mechanical Engineering, Kyungnam University) ;
  • Yun, Jon Do (Department of Nano Materials Science and Engineering, Kyungnam University)
  • 투고 : 2016.02.04
  • 심사 : 2016.06.19
  • 발행 : 2016.10.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The aim of this study was to examine the validity of fracture criterion for PMMA plates that have a V-notch with an end hole. The predicted stress intensity factors and crack initiation angles by the fracture criterion based on the maximum circumferential stress and the novozhilov's criteria were compared with the experimental results. By increasing the radius of end hole, the differences of predicted stress intensity factors and experimental results increased, possibly due to the plastic zone size. The results indicated that when the radius of end hole is < 1 mm, the fracture criterion would be useful.

키워드

참고문헌

  1. Irwin, G. R., "Analysis of Stresses and Strains Near the End of a Crack Traversing a Plate," Journal of Applied Mechanics, pp. 361-364, 1957.
  2. Erdogan, F. and Sih, G. C., "On the Crack Extension in Plates Under Plane Loading and Transverse Shear," Journal of Basic Engineering, Vol. 85, No. 4, pp. 519-525, 1963. https://doi.org/10.1115/1.3656897
  3. Filippi, S., Lazzarin, P., and Tovo, R., "Developments of Some Explicit Formulas Useful to Describe Elastic Stress Fields Ahead of Notches in Plates," International Journal of Solids and Structures, Vol. 39, No. 17, pp. 4543-4565, 2002. https://doi.org/10.1016/S0020-7683(02)00342-6
  4. Zappalorto, M. and Lazzarin, P., "In-Plane and Out-of-Plane Stress Field Solutions for V-Notches with end Holes," International Journal of Fracture, Vol. 168, No. 2, pp 167-180, 2011. https://doi.org/10.1007/s10704-010-9567-5
  5. Kim, J. K. and Cho, S. B., "A Superposition Approach to the Stress Fields for Various Blunt V-Notches," Fatigue and Fracture of Engineering Materials and Structures, Vol. 36, No. 2, pp. 139-153, 2013. https://doi.org/10.1111/j.1460-2695.2012.01706.x
  6. Kim, J. K. and Cho, S. B., "Superposition Approach of the Stress Fields for Blunt V-Notches Under Anti-Plane Shear Loading," Int. J. Precis. Eng. Manuf., Vol. 14, No.4, pp. 605-612, 2013. https://doi.org/10.1007/s12541-013-0081-3
  7. Kim, J. K. and Cho, S. B., "A Study on Stress Fields Near V-Notch Tip with End-Hole Under in-Plane and Out-of-Plane Conditions," Int. J. Precis. Eng. Manuf., Vol. 14, No. 7, pp. 1153-1161, 2013. https://doi.org/10.1007/s12541-013-0157-0
  8. Seweryn, A., "Brittle Fracture Criterion for Structures with Sharp Notches," Engineering Fracture Mechanics, Vol. 47, No. 5, pp. 673-681, 1994. https://doi.org/10.1016/0013-7944(94)90158-9
  9. Novozhilov, V. V., "On Necessary and Sufficient Criterion of Brittle Strength," Journal of Applied Mathematics and Mechanics, Vol. 33, No. 2, pp. 212-222, 1969.
  10. Kim, J. K. and Cho, S. B., "A Unified Brittle Fracture Criterion for Structures with Sharp V-Notches Under Mixed Mode Loading," Journal of Mechanical Science and Technology, Vol. 22, No. 7, pp. 1269-1278, 2008. https://doi.org/10.1007/s12206-008-0315-y
  11. Ayatollahi, M. R. and Torabi, A. R., "Investigation of Mixed Mode Brittle Fracture in Rounded-Tip V-Notched Components," Engineering Fracture Mechanics, Vol. 77, No. 16, pp. 3087-3104, 2010. https://doi.org/10.1016/j.engfracmech.2010.07.019
  12. Torabi, A. R. and Ayatollahi, M. R., "Compressive Brittle Fracture in V-Notches with End Holes," European Journal of Mechanics - A/Solids, Vol. 45, pp. 32-40, 2014. https://doi.org/10.1016/j.euromechsol.2013.11.012
  13. Williams, M. L., "Stress Singularities Resulting from Various Boundary Conditions in Angular Corners of Plates in Extension," Journal of Applied Mechanics, Vol. 19, No. 4, pp. 526-528, 1952.
  14. Richard, H. A., "A New Compact Shear Specimen," International Journal of Fracture, Vol. 17, No. 5, pp. 105-107, 1981.
  15. Kim, J. and Cho, S., "Effect of Second Non-Singular Term of Mode I Near the Tip of a V-Notched Crack," Fatigue and Fracture of Engineering Materials and Structures, Vol. 32, No. 4, pp. 346-356, 2009. https://doi.org/10.1111/j.1460-2695.2009.01336.x
  16. Flicek, R., Hills, D., and Dini, D., "Refinements in the Characterisation of Mode-Mixity and Small Scale Yielding at Sharp Notch Roots," Engineering Fracture Mechanics, Vol. 126, pp. 73-86, 2014. https://doi.org/10.1016/j.engfracmech.2014.04.022