Development of a shell element with pressure variation through the thickness
Kwon, Young K.
MetadataShow full item record
A shell formulation was developed from a three-dimensional solid. The shell element is an isoparametric element, and has four corner nodes at which there are three displacement and three rotations, independently. Therefore, the element formulation includes the transverse shear deformation and the transverse normal deformation. In addition, the formulation consists of separate components of the mean stress and deviatoric stresses because the Gurson constitutive model for void growth is based on the mean stress and the dilatation. As a result, the Gurson void model can be implemented in the shell formulation at the next stage. The shell element uses the reduced integration along the inplane axes and full integration along the transverse direction If more accuracy is required along the thickness of the shell, a large number of integration points can be selected in the direction. Verification of the shell element was performed for a plate problem and a shell problem whose analytical solutions were available. The next phase of this work is to implement the Gurson model in the shell element. Once those are successfully completed, the module will be incorporated into the DYSMAS program.
NPS Report NumberNPS-ME-97-006
Showing items related by title, author, creator and subject.
McDermott, Patrick M.; Kwon, Young W. (Monterey, California. Naval Postgraduate School, 1998-09); NPS-ME-98-005A shell formulation was developed from a three dimensional solid. The shell element is isoparametric and has four corner nodes at which there are three independent displacements and three independent rotations. The element ...
Development and implementation of a shell element with pressure variation through the thickness and void growth and nucleation effects McDermott, Patrick M. (Monterey, California: Naval Postgraduate School, 1999-09);A shell formulation was developed from a three-dimensional solid. The shell element has four corner nodes at which there are three displacements and three rotations as nodal degrees of freedom, and includes both transverse ...
Elshafei, Mostafa Adnan (Monterey, California. Naval Postgraduate School, 1996-09);In the present work, the shape control of fiber reinforced composite plate with embedded piezoelectric actuators is investigated. A finite element formulation is developed for modeling a laminated composite plate that has ...