The General Plane Stress Failure of Boron Aluminum Composites. Part II. Phase I: Theoretical Analysis of Cylindrical Tubes for Characterization of Boron/Aluminum Composites. Phase II: Plasticity and Combined Loading Analysis of Cylindrical Tubes for Characterization of Boron/Aluminum Composites.
Abstract
The purpose of the study is to determine the adequacy of laminate theory in predicting off-axis elastic modulus compared to finite element simulation of the response of boron/aluminum tubes. Gripping effects and stress distribution uniformity are considered for anisotropic tubes. The analysis indicates that in the gage section boron/aluminum behaves essentially as an isotropic material when t/D = or < 0.05. Consequently, the simplifying assumptions of shell theory can be directly applied to their analysis. It is concluded that (1) failure in the 'grip section' will be substantially less likely to occur than with boron or graphite/epoxy systems, (2) stresses will be nearly uniform in the gage section, and (3) only minor extraneous stress effects will be generated. (Modified author abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1973
- Accession Number
- AD0775712
Entities
People
- A. A. Vicario
- P. F. Stecher
- William T. Freeman
Organizations
- University of Washington