Comput.Struct. 71, 197-214, 1999
H.E. Pettermann¹, A.F. Plankensteiner², H.J. Böhm³, F.G. Rammerstorfer³
¹Austrian Research Center, Seibersdorf, Austria
²Plansee AG, Reutte, Austria
³Institute of Lightweight Structures and Aerospace Engineering,
TU Wien, Vienna, Austria
The behavior of a composite consisting of aligned
thermo-elastic reinforcements embedded in a thermo-elasto-plastic matrix
is described by an incremental Mori--Tanaka mean field approach.
The matrix phase behavior is described by incremental J2
plasticity and the breakdown of isotropy of the matrix phase upon
yielding is accounted for.
The proposed method is implemented as a constitutive material model
for a finite element code incorporating temperature dependent material
An implicit solution strategy is introduced and special emphasis
is put on the appropriate handling of the thermal expansion behavior.
The applicability of the method is shown by both material
characterization and a structural analysis of a hybrid component.