4. D modeling#

4.1. Characteristics of modeling#

  • Tested behavior: TVergaard.mfront. Cohesive zone law, regularized in comparison to law CZM_LIN_REG [R7.02.11].

Ref: « A modified version of the Tvergaard model. » « Tvergaard V., Effect of fiber debonding in a whisker reinforced metal, » « Mater. Sci. Eng., 1990, vol. a125, pp 203-213 »

  • The normal stress-opening characteristic curve is as follows:

    images/100002010000032c000002649401d5b4257b2AC5.png

Blue curve: Tvergaard, green curve: CZM_LIN_REG.

  • Modeling: similar to test SSNP118E [V6.03.118] but with a Tvergaard law. The tests are therefore non-regression.

4.2. Tested sizes and results#

Identification

Instants

Reference

\({u}_{x}\)

1

2.1650635257

\({\sigma }_{n}\)

0.9

1.0475348752

\({\sigma }_{n}\)

1

0.0030176971