Accession Number : AD0721256

Title :   A Lagrangian Formulation for Large Elastic Deformations of Thin Shells.

Descriptive Note : Technical rept.,

Corporate Author : BROWN UNIV PROVIDENCE R I DIV OF ENGINEERING

Personal Author(s) : Dupuis,Georges A.

Report Date : FEB 1971

Pagination or Media Count : 36

Abstract : The report presents a Lagrangian formulation for large elastic deformations of thin shells, particularly suitable for finite element analysis. A variational principle involving the rate of displacement is obtained. This principle is the starting point of an incremental analysis. The displacement field is integrated with respect to time by Euler's method and, for each step, a quadratic variational problem has to be solved. (Author)

Descriptors :   (*ELASTIC SHELLS, DEFORMATION), STRAIN(MECHANICS), STRESSES, NUMERICAL INTEGRATION, PARTIAL DIFFERENTIAL EQUATIONS, CALCULUS OF VARIATIONS

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE