TY  - EJOU
AU  - Majorana, C.E.  
AU  - Salomoni, V.A.  

TI  - Dynamic Nonlinear Material Behaviour of Thin Shells in Finite Displacements and Rotations
T2  - Computer Modeling in Engineering \& Sciences

PY  - 2008
VL  - 33
IS  - 1
SN  - 1526-1506

AB  - A dynamic analysis of a thin shell finite element undergoing large displacements and rotations is here presented. The constitutive model adopted derives from the coupling of an hyperelastic basic model fulfilling a De Saint Venant-Kirchhoff criterion with a scalar damage function depending on the maximum value of a suitable strain measure attained through the deformation history; then plastic effects are included using an isotropic/kinematic hardening law. A conservative time integration scheme for the non-linear dynamics of the hyperelastic damaged-plastic thin shell is applied. The main characteristic of the scheme is to be conservative, since it allows for the time-discrete system to preserve the basic laws of continuum, namely the balance of the linear and angular momentum as well as the fulfilment of the second law of thermodynamics.
KW  - thin shells
KW  -  large displacements and rotations
KW  -  non-linear dynamics
KW  -  time integration algorithms
KW  -  hyperelastic-damage
KW  -  plastic behaviour

DO  - 10.3970/cmes.2008.033.049