Accession Number : AD0702444

Title :   DEVELOPMENT AND EVALUATION OF A TRIANGULAR THIN SHELL ELEMENT BASED UPON THE HYBRID ASSUMED STRESS MODEL.

Descriptive Note : Technical rept.,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE AEROELASTIC AND STRUCTURES RESEARCH LAB

Personal Author(s) : Tanaka,Michio

Report Date : DEC 1969

Pagination or Media Count : 122

Abstract : A finite-element formulation for a general triangular thin doubly-curved Kirchhoff shell element has been carried out, based upon the hybrid assumed stress variational model. This formulation is then applied specifically to conical (and cylindrical) shells, and the associated finite-element properties are evaluated. Several example static problems involving isotropic cylindrical shells and an isotropic conical shell subjected to mechanical loading are solved by employing the present triangular element to evaluate this formulation; good agreement with independent reliable solutions for these problems has been found. The formulation presented, however, also includes skew orthotropic plane stress shells, variable thickness shells, and thermal loads, all for linear elastic behavior. (Author)

Descriptors :   (*REENTRY VEHICLES, STRESSES), SHELLS(STRUCTURAL FORMS), BODIES OF REVOLUTION, CONICAL BODIES, LOADS(FORCES), THERMAL STRESSES, ELASTIC PROPERTIES, MATHEMATICAL MODELS

Subject Categories : Guided Missile Traj, Accuracy and Ballistics
      Guided Missile Reentry Vehicles
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE