A CHAIN NETWORK MODEL SIMULATING MACRO MECHANICAL BEHAVIOR AND MICRO DAMAGE EVOLUTION OF Si 3N 4 CERAMICS

doi:10.6052/0459-1879-1997-2-1995-214

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Chinese Journal of Theoretical and Applied Mechanics > 1997 > 29(2): 182-188. > DOI: 10.6052/0459-1879-1997-2-1995-214 CSTR: 32045.14.0459-1879-1997-2-1995-214

A CHAIN NETWORK MODEL SIMULATING MACRO MECHANICAL BEHAVIOR AND MICRO DAMAGE EVOLUTION OF Si 3N 4 CERAMICS[J]. Chinese Journal of Theoretical and Applied Mechanics, 1997, 29(2): 182-188. DOI: 10.6052/0459-1879-1997-2-1995-214

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A CHAIN NETWORK MODEL SIMULATING MACRO MECHANICAL BEHAVIOR AND MICRO DAMAGE EVOLUTION OF Si 3N 4 CERAMICS

中科院力学所非线性力学国家重点实验室,100080

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Abstract

By taking the bridging of elongated grains as a dominant load transfer mechanism across the intrinsic flaws in the matrix, a chain-network model is proposed and used to simulate macro mechanical response and micro damage evolution of in situ reinforced ceramics. Relation between the mechanical parameters of the chains and the geometrical-physical properties of the elongated grains is discussed. Numerical experiments and statistic investigations are carried out.
- chain network model,
- in situ reinforced ceramics,
- micro damageevolution,
- macro mechanical behavior

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A CHAIN NETWORK MODEL SIMULATING MACRO MECHANICAL BEHAVIOR AND MICRO DAMAGE EVOLUTION OF Si 3N 4 CERAMICS

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