Laminated composites modeling in ADAGIO/PRESTO. | Zendy

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Laminated composites modeling in ADAGIO/PRESTO.

Author(s) -

Daniel Hammerand

Publication year - 2004

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/919118

Subject(s) - statics , finite element method , bilinear interpolation , constitutive equation , shell (structure) , physics , structural engineering , materials science , mathematics , composite material , classical mechanics , engineering , statistics

A linear elastic constitutive equation for modeling fiber-reinforced laminated composites via shell elements is specified. The effects of transverse shear are included using first-order shear deformation theory. The proposed model is written in a rate form for numerical evaluation in the Sandia quasi-statics code ADAGIO and explicit dynamics code PRESTO. The equation for the critical time step needed for explicit dynamics is listed assuming that a flat bilinear Mindlin shell element is used in the finite element representation. Details of the finite element implementation and usage are given. Finally, some of the verification examples that have been included in the ADAGIO regression test suite are presented

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