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R.H. Knapp* and T.T. Le#

*Department of Mechanical Engineering, University of Hawaii at Manoa, Honolulu, United States of America
#Knapp Engineering, Inc., Aiea, United States of America

doi:10.4203/ccp.41.5.1

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R.H. Knapp, T.T. Le, "Polyhedrally-Stiffened Cylindrical Shells for Undersea Composite Pressure Hulls", in B.H.V. Topping, (Editor), "Advances in the Analysis and Design of Composites", Civil-Comp Press, Edinburgh, UK, pp 81-89, 1996. doi:10.4203/ccp.41.5.1

Abstract

A structural concept is proposed that offers promising design alternatives for undersea pressure hulls made from composite materials. This concept consists of a geometrical idealization of the buckled surface of an axially compressed circular cylinder. It is a polyhedral representation of the buckled cylinder in which flat triangular surfaces are folded into an undulated surface. Such surfaces have been generally regarded as failed forms of the cylinder; however, finite element and experimental investigations show that the polyhedral cylinder is remarkably more resistant to buckling failure under uniform external pressure than a circular cylinder. Based on these investigations, this structure can now be regarded as a new, intrinsically stiffened structural form to resist external pressure.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 41 ADVANCES IN THE ANALYSIS AND DESIGN OF COMPOSITES Edited by: B.H.V. Topping Paper V.1 Polyhedrally-Stiffened Cylindrical Shells for Undersea Composite Pressure Hulls R.H. Knapp* and T.T. Le# *Department of Mechanical Engineering, University of Hawaii at Manoa, Honolulu, United States of America #Knapp Engineering, Inc., Aiea, United States of America doi:10.4203/ccp.41.5.1 purchase the full-text of this paper Full Bibliographic Reference for this paper R.H. Knapp, T.T. Le, "Polyhedrally-Stiffened Cylindrical Shells for Undersea Composite Pressure Hulls", in B.H.V. Topping, (Editor), "Advances in the Analysis and Design of Composites", Civil-Comp Press, Edinburgh, UK, pp 81-89, 1996. doi:10.4203/ccp.41.5.1 Abstract A structural concept is proposed that offers promising design alternatives for undersea pressure hulls made from composite materials. This concept consists of a geometrical idealization of the buckled surface of an axially compressed circular cylinder. It is a polyhedral representation of the buckled cylinder in which flat triangular surfaces are folded into an undulated surface. Such surfaces have been generally regarded as failed forms of the cylinder; however, finite element and experimental investigations show that the polyhedral cylinder is remarkably more resistant to buckling failure under uniform external pressure than a circular cylinder. Based on these investigations, this structure can now be regarded as a new, intrinsically stiffened structural form to resist external pressure. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £58 +P&P)
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