Mechanical Response of Composites (Eds. P.P.Camanho, C.G.Dávila, S.T.Pinho, J.J.C.Remmers), pp.99-117, Springer-Verlag, 2008
C. Schuecker1,2, H.E. Pettermann¹
¹Austrian Aeronautics Research (AAR),
Institute of Lightweight Design and Structural Biomechanics,
TU Wien, Vienna, Austria
²NASA Langley Research Center, Hampton, VA
The present work is concerned with modeling the non-linear behavior of
continuous fiber reinforced laminates with a special emphasis on
loading conditions that lead to high ply shear stresses.
Typically, the modeling of non-linear laminate behavior focuses on damage
mechanics approaches and assumes that the non-linearity is caused by brittle
Based on the correlation of experimental data and modeling results, this
assumption seems to hold true for load cases in which layers experience mainly
Under shear dominated loads, however, it has been found that the agreement
between tests and model predictions is less satisfactory.
Additionally, considerable permanent strains develop under such loading
conditions that cannot be explained by brittle mechanisms alone.