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Article | REF: BM5060 V1

Fracture mechanics

Author: Juan-Antonio RUIZ-SABARIEGO

Publication date: April 10, 2014

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3. Crack propagation modeling

3.1 Paris Law

Crack propagation can be described in terms of three main stages:

  • stage I: crack micropropagation around the K s cracking threshold;

  • stage II: Paris estate ;

  • stage III: propagation accelerates as K max approaches the critical FIC value, K IC . Above K IC , unstable fracture occurs.

Figure 10 describes these...

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