Accession Number : AD0713113

Title :   BOMS II, BUCKLING OF STIFFENED MULTILAYERED CIRCULAR CYLINDRICAL SHELLS WITH DIFFERENT ORTHOTROPIC MODULI IN TENSION AND COMPRESSION.

Descriptive Note : Technical rept. Mar-Aug 70,

Corporate Author : AEROSPACE CORP SAN BERNARDINO CALIF SAN BERNARDINO OPERATIONS

Personal Author(s) : Jones,Robert M.

Report Date : 14 AUG 1970

Pagination or Media Count : 74

Abstract : An exact buckling criterion, within the framework of classical buckling theory,is derived for eccentrically stiffened multilayered circular cylindrical shells made of materials that have different orthotropic moduli in tension and compression. Such behavior is typical of many current composite materials. The buckling criterion is valid for arbitrary combinations of axial and circumferential loading, including axial compression and internal pressure as well as axial tension and lateral pressure. The material model (stress-strain relationship) involves a bilinear stress-strain curve with a discontinuity in slope (modulus) at the origin. A numerical example of buckling of a ring-stiffened two-layered circular cylindrical shell is given to illustrate application of the buckling criterion. A FORTRAN IV computer program, BOMS II, that implements the aforementioned analysis is described and listed. (Author-PL)

Descriptors :   (*SHELLS(STRUCTURAL FORMS), *BUCKLING), (*AEROSPACE CRAFT, STRUCTURAL PROPERTIES), STIFFENED CYLINDERS, COMPOSITE MATERIALS, COMPRESSIVE PROPERTIES, STRESSES, STRAIN(MECHANICS), COMPUTER PROGRAMS

Subject Categories : Computer Programming and Software
      Mechanics
      Unmanned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE