7.7 Validation based on different joint configurations
153
with the exception of the face to core debonding which is not implemented by means of
a cohesive contact. However, analogous to the virtual tests of inserts under out-of-plane
tension (Figure 104, p. 135), the core locally fails in tension, which is another form of
core to face debonding. In summary, good agreement between physical and virtual test
can be attested. Therefore, the implemented model proves to be capable to also reproduce undesirable failure modes, which are caused by poor manufacturing and the virtual
testing approach can be considered further validated.
7.7.3 Conclusion
It is shown that the virtual testing approach enables to predict the mechanical damage
behavior of four independent reference tests with varying material configurations and
damage mechanisms. When considering the validation examples in sequence it can be
seen that the modeling database grows and fewer investigations become necessary during the model development phase (see Figure 112, Figure 116 and Figure 119). In addition, since the different implemented models comprise reoccurring constituents, the derived material models and parameters can be validated. Overall the four given examples
represent a solid validation foundation and it is concluded that the proposed approach
is validated.
153
with the exception of the face to core debonding which is not implemented by means of
a cohesive contact. However, analogous to the virtual tests of inserts under out-of-plane
tension (Figure 104, p. 135), the core locally fails in tension, which is another form of
core to face debonding. In summary, good agreement between physical and virtual test
can be attested. Therefore, the implemented model proves to be capable to also reproduce undesirable failure modes, which are caused by poor manufacturing and the virtual
testing approach can be considered further validated.
7.7.3 Conclusion
It is shown that the virtual testing approach enables to predict the mechanical damage
behavior of four independent reference tests with varying material configurations and
damage mechanisms. When considering the validation examples in sequence it can be
seen that the modeling database grows and fewer investigations become necessary during the model development phase (see Figure 112, Figure 116 and Figure 119). In addition, since the different implemented models comprise reoccurring constituents, the derived material models and parameters can be validated. Overall the four given examples
represent a solid validation foundation and it is concluded that the proposed approach
is validated.