Skip to Main Content
 

Global Search Box

 
 
 
 

ETD Abstract Container

Abstract Header

Dynamic Response of Composite Cylindrical Shells Under External Impulsive Loads

Pothula, Sunil George

Abstract Details

2009, Master of Science, University of Akron, Mechanical Engineering.
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.
Michelle S Hoo Fatt (Advisor)
71 p.

Recommended Citations

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)