International Journal of Fracture

, Volume 186, Issue 1–2, pp 177–184 | Cite as

Improved decohesion modeling with the material point method for simulating crack evolution

  • Pengfei Yang
  • Yong Gan
  • Xiong Zhang
  • Zhen Chen
  • Wanjun Qi
  • Ping Liu
Original Paper


A combined elastoplasticity and decohesion model is used with the material point method for the crack problem as described in the Sandia National Laboratories challenge. To predict the cracking path in a complex configuration with the least computational cost, the decohesion modeling is improved by making the failure mode adjustable and by replacing the critical normal and tangential decohesion strengths with the tensile and shear peak strengths, without performing discontinuous bifurcation analysis in each loading step after the onset of failure is identified. It is found that there is a transition between different failure modes along the cracking path, which depends on the stress distribution around the path due to the nonlocal nature of failure evolution. Based on the parametric study and available experimental data, the proposed model-based simulation procedure could be calibrated to predict the essential feature of the observed cracking response.


Material point method Decohesion model Crack evolution 



This work was supported in part by the National Natural Science Foundation of China under Grant Number 11232003 and 11102185, and the National Key Basic Research Special Foundation of China under Grant Number 2010CB832701 and 2010CB832704.


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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  1. 1.Department of Engineering MechanicsTsinghua UniversityBeijing China
  2. 2.Department of Engineering MechanicsZhejiang UniversityHangzhouChina
  3. 3.Department of Civil and Environmental EngineeringUniversity of MissouriColumbiaUSA
  4. 4.Department of Engineering MechanicsDalian University of TechnologyDalian China

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