Transactions of the Korean Society of Machine Tool Engineers (한국공작기계학회논문집)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Analysis of Damage Mechanism for Optimum Design in Discontinuously-Reinforced Composites

불균질입자강화 복합재료의 최적설계를 위한 손상메커니즘 해석

  • 조영태 (조선대학교 항공조선공학부) ;
  • 조의일 (여수대 응용공학부)
  • Published : 2004.08.01
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Abstract

In particle or short-fiber reinforced composites, cracking or debonding of the reinforcements cause a significant damage mode because the damaged reinforcements lose load carrying capacity. The average stress in the inhomogeneity represents its load carrying capacity, and the difference between the average stresses of the intact and broken inhomogeneities indicates the loss of load carrying capacity due to cracking damage. The composite in damage process contains intact and broken reinforcements in a matrix. An incremental constitutive relation of discontinuously-reinforced composites including the progressive cracking damage of the reinforcements have been developed based on the Eshelby's equivalent inclusion method and Mori-Tanaka's mean field concept. Influence of the cracking damage on the stress-strain response of the composites is demonstrated.

Keywords

References

  1. Metall. and Mater. Trans. A v.21 A The Effect of Matrix Reinforcement Reaction on Fracture in Ti-6Al-4 V-Base Composites Loretto, M. H.;Konitzer, D. G.
  2. Metall. and Mater. Trans. A v.24A Particulate Fracture during Deformation of a Spray Formed Metal-Matrix Composite Llorca, J.;Martin, A.;Ruiz, J.;Elices, M.
  3. Localized Damage IV, Computer-Aided Assessment and Control Application of Incremental Damage Theory to Glass Particle Reinforced Nylon 66 Composites Tohgo, K.;Mochizuki, K.;Takahashi, H.;Ishil, H.
  4. JSME Int. J. Ser. A v.39 no.3 Incremental Theory of Particulate-Reinforced Composites Including Debonding Damage Tohgo, K.;Chou, T. W.
  5. ASME J. Eng. Mat. Tech. v.116 Progressive Damage Mechanics in Particle-Reinforced Metal-Matrix Composites under High Triaxial Tension Tohgo, K.;Weng, G. J. https://doi.org/10.1115/1.2904307
  6. Proceedings of the Royal Society, London v.A241 The Determination of the Elastic Field of an Ellipsoidal Inclusion, and Related Problems Eshelby, J. D.
  7. Acta Metall. v.21 Average Stress in Matrix and Average Elastic Energy of Materials with Misfitting Inclusions Mori, T.;Tanaka, K. https://doi.org/10.1016/0001-6160(73)90064-3
  8. Micromechanics of Defects in Solids Mura, T.
  9. Acta Metall. v.35 Thermal Residual Stress in Metal Matrix Composite Arsenault, R. J.;Taya, M. https://doi.org/10.1016/0001-6160(87)90188-X
  10. Acta Mater. v.45 no.11 Load Carrying Capacity of a Broken Ellipsoidal Inhomogeneity Cho, Y.-T.;Thogo, K.;Ishii, H. https://doi.org/10.1016/S1359-6454(97)00126-2