Skip to Main Content
Frequently Asked Questions
Submit an ETD
Global Search Box
Need Help?
Keyword Search
Participating Institutions
Advanced Search
School Logo
Files
File List
akron1248097987.pdf (1.34 MB)
ETD Abstract Container
Abstract Header
Dynamic Response of Composite Cylindrical Shells Under External Impulsive Loads
Author Info
Pothula, Sunil George
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=akron1248097987
Abstract Details
Year and Degree
2009, Master of Science, University of Akron, Mechanical Engineering.
Abstract
Dynamic pulse buckling, vibration and failure of laminated, composite cylindrical shells subjected to blast loading were studied. The dynamic response of the shells with orthotropic, symmetric, anti-symmetric and quasi-isotropic layups subjected to both uniform and asymmetric pressure pulse loading (side-on explosion) were examined by use of Fourier series and Lagrange's equation of motion. The solutions for the radial shell deformations were represented by Mathieu differential equations. Dynamic stability of the shells was determined from a Mathieu stability diagram. It was found that the stability of the shells were affected by lay-up, aspect ratio as well as impulse distribution. The stable vibration response of the orthotropic cylindrical shell with side-on explosion compared well with finite element solutions using an implicit dynamic analysis in ABAQUS Standard. First-ply failure of the orthotropic composite cylindrical shell was predicted using a modified Hashin-Rotem failure criterion. It was observed that the thinner shell were more likely to fail by dynamic instability, whereas the thicker shells were more likely to fail by first-ply failure.
Committee
Michelle S Hoo Fatt (Advisor)
Pages
71 p.
Subject Headings
Mechanical Engineering
Keywords
Dynamic pulse buckling
;
Cylindrical shells
;
Side-on loading
;
Mathieu stability diagram
Recommended Citations
Refworks
EndNote
RIS
Mendeley
Citations
Pothula, S. G. (2009).
Dynamic Response of Composite Cylindrical Shells Under External Impulsive Loads
[Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1248097987
APA Style (7th edition)
Pothula, Sunil George.
Dynamic Response of Composite Cylindrical Shells Under External Impulsive Loads.
2009. University of Akron, Master's thesis.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=akron1248097987.
MLA Style (8th edition)
Pothula, Sunil George. "Dynamic Response of Composite Cylindrical Shells Under External Impulsive Loads." Master's thesis, University of Akron, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=akron1248097987
Chicago Manual of Style (17th edition)
Abstract Footer
Document number:
akron1248097987
Download Count:
3,850
Copyright Info
© 2009, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.