Failure Loading of Metallic and Composite Cylinders Under Internal Pressure Loading
Authors
Kwon, Y.W.
Ponshock, T.
Molitoris, J.D.
Subjects
mechanical device for internal pressure loading
failure of cylindrical structure
composite materials
multiscale analysis
failure of cylindrical structure
composite materials
multiscale analysis
Advisors
Date of Issue
2016-12
Date
December 2016
Publisher
Language
Abstract
A new mechanical device was developed to apply internal pressure loading to a cylindrical structure in order to determine its failure strength and failure mode under pressure loading. The device can be used for a uniaxial testing machine to apply internal pressure to a cylindrical structure. As a result, the developed device does not require any fluid to generate internal pressure loading. The device consists of two truncated conical shape of rams and eight pieces of the identical shape of wedges. The effectiveness of the device was assessed using both detailed finite element analyses of metallic cylinders as well as the analytical analysis. Then, a set of experimental tests were undertaken for aluminum alloy cylinders in order to evaluate experimental failure strength against the numerical and analytical results. Finally, composite cylinders made of glass-fiber or carbon-fiber woven fabrics were tested using the device, and the experimental results were compared to the predicted results using a multiscale analysis model. Those results agreed well with each other.
Type
Article
Description
The article of record as published may be found at http://dx.doi.org/10.1115/1.4033772
Series/Report No
Department
Mechanical and Aerospace Engineering (MAE)
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Defense Threat Reduction Agency (DTRA)
Format
8 p.
Citation
Journal of Pressure Vessel Technology, December 2016, Vol. 138.
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.