[Back]


Talks and Poster Presentations (with Proceedings-Entry):

J. Gager, M. Meindlhumer, M. Schwab, H. E. Pettermann:
"Numerically Predicted Damage and Failure Envelopes of Composites Featuring Nonlinear Material Behavior";
Talk: 19th International Conference on Composite Materials, Montréal; 07-28-2013 - 08-02-2013; in: "Proceedings of the 19th International Conference on Composite Materials", S.V. Hoa, P. Hubert (ed.); Byte Press, Toronto, ON (2013), 9 pages.



English abstract:
A simulation methodology is proposed which combines linear elastic analyses of large scale laminated composite structures and nonlinear unit cell predictions to account for local nonlinear material behavior at the ply level. In a two-step procedure nonlinear unit cell simulations are conducted first. The results can then be used to draw "energy dissipation envelopes" in stress and strain space and
to perform post-processing on linear large scale structural analyses. Based on the concept of energy dissipation monitoring, the macroscopic material point exertion is assessed. The methodology is demonstrated using a generic nacelle structure built from laminated textile composites.