Advanced Search

Journal Navigation

Journal Home

Subscriptions

Archive

Contact Us

Table of Contents

Sign In to gain access to subscriptions and/or personal tools.
Journal of Composite Materials
This Article
Right arrow Full Text (PDF)
Right arrow References
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to Saved Citations
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Request Reprints
Right arrow Add to My Marked Citations
Citing Articles
Right arrow Citing Articles via Google Scholar
Right arrow Citing Articles via Scopus
Google Scholar
Right arrow Articles by Peros, V.
Right arrow Search for Related Content
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati   Add to Twitter  
What's this?

Thick-Walled Composite Material Pressure Hulls: Three-Dimensional Laminate Analysis Considerations

Vasilios Peros

Martin Marietta Aero & Naval Systems 103 Chesapeake Park Plaza, MP 405 Baltimore, Maryland 21220

The design of composite material pressure hulls is considered for deep submergence research vehicle applications. A thick laminate must be incorporated because of the high external hydrostatic pressure design requirements. The result is a thick-walled cylinder which by definition has a radius-to-thickness ratio less than ten. Sub- scale cylinders made of graphite/epoxy have been tested and found to fail prematurely. A failure analysis is performed to investigate the failure mechanisms. Thin laminate testing results in an ultimate compressive strength significantly higher than that obtained by sub- scale cylinder testing. Hence, a discrepancy exists between thin (2-D) and thick (3-D) lam inate testing. Through the thickness and thick laminate compression tests show that a large Poisson's ratio causes significant tensile strains through the thickness resulting from hoop and axial compressive loading. Because there is no fiber reinforcement in the through the thickness direction, these tensile strains may contribute to the cylinder failure.

Key Words: Thick-walled pressure hulls • graphite/epoxy • through the thickness strain • compression testing.

Journal of Composite Materials, Vol. 24, No. 11, 1213-1224 (1990)
DOI: 10.1177/002199839002401107
Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati   Add to Twitter Twitter    What's this?