Acta Mechanica Solida Sinica

, Volume 20, Issue 2, pp 141–148 | Cite as

Fractural process and toughening mechanism of laminated ceramic composites

  • Yafang Zhang
  • Chun’an Tang
  • Yongbin Zhang
  • Zhenzao Liang
Article

Abstract

Based on the model of multi-layer beam and the assumption of micro-inhomogeneity of material, the 3D fractural characteristics of laminated ceramic composites have been studied with numerical simulation. Under three-point bending load, crack initiation, coalescence, propagation, tuning off in the weak interface and final rupture have been simulated. The spatial distribution and evolution process of acoustic emission are also presented in the paper. The simulation verifies the primary mechanism of the weak interface inducing the crack to expand along there and absorbing the fractural energy. The disciplinary significance of the effect of strength and properties of material on the toughness and strength of laminated ceramic composites is, therefore, discussed in this paper.

Key words

laminated ceramic composite toughening numerical simulation 

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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2007

Authors and Affiliations

  • Yafang Zhang
    • 1
  • Chun’an Tang
    • 2
    • 3
  • Yongbin Zhang
    • 3
  • Zhenzao Liang
    • 2
  1. 1.Faculty of Civil EngineeringGuangzhou UniversityGuangzhouChina
  2. 2.School of Civil and Hydraulic EngineeringDalian University of TechnologyDalianChina
  3. 3.Research Center for Numerical Test on Material FailureDalian UniversityDalianChina

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