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Accession Number:
AD0670518
Title:
APPROXIMATE ELASTICITY SOLUTION FOR ORTHOTROPIC CYLINDER UNDER HYDROSTATIC PRESSURE AND BAND LOADS
Corporate Author:
POLYTECHNIC INST OF BROOKLYN NY DEPT OF AEROSPACE ENGINEERING AND APPLIED MECHANICS
Report Date:
1968-05-01
Abstract:
An approximate solution to the Navier equations of the three- dimensional theory of elasticity for an axisymmetric orthotropic circular cylinder subjected to internal and external pressure, axial loads, and closely spaced periodic radial loads is introduced. Numerical comparison with the exact solution for a transversely isotropic cylinder subjected to periodic band loads shows that very good accuracy is obtainable. When the results of this approximate solution are compared with previously obtained results of a Flugge- type shell solution of a ring-reinforced orthotropic cylinder, it is found that the shell theory gives a fairly accurate representation of the deformation except in the neighborhood of discontinuous loads. The addition of transverse shear deformations does not improve the accuracy of the shell solution. When Hills orthotropic yield criterion is applied, it is found that yielding could begin rather early at the inner surface of the shell adjacent to the frame. It is noted that the transverse shearing stress has no great effect on the initial yield pressure. Author
Descriptive Note:
Research rept
Supplementary Note:
DOI: 10.21236/AD0670518
Pages:
0067
Distribution Statement:
Approved for public release; distribution is unlimited.
Contract Number:
NONR-839(39)
File Size:
2.34MB
