Finite difference approach for predicting probabilistic life of a composite cylinder subjected to thermal random loads

A long hollow cylinder with five layers, subjected to a random thermal environment is analyzed. The random thermal environment includes the ambient air temperature, solar radiation and wind speed. The location of interest is Phoenix, Arizona. The governing differential equation is the so-called one-dimensional Fourier heat conduction equation in cylindrical coordinates. An implicit finite difference scheme is developed to obtain temperature responses inside the cylinder. Given the linear elastic behavior of materials involved, induced stresses and strains are evaluated at the end of each time step of the finite difference scheme. A statistical analysis is then carried out to determine the probability of failure of the propellant and hence the service life of the motor can be computed.

Name thesis:degree_name

Ph. D.

Level thesis:degree_level

doctoral

Discipline thesis:degree_discipline

Engineering Mechanics

Department dc:contributor.department

Engineering Mechanics

Grantor dc:publisher

Virginia Tech

Year dc:date.issued

1979

Author dc:creator

• Con, Vu Ngoc

Chair dc:contributor.committeechair

• Heller, Robert A.

Committee members dc:contributor.committeemember

• Meirovitch, Leonard
• Singh, Mahendra P.
• Mook, Dean T.
• Ling, Chih B.

• storage rocket motors

Statement dc:rights

• In Copyright

Licence dc:rights.uri

• http://rightsstatements.org/vocab/InC/1.0/

Language dc:language.iso

en

Dc Identifier Other

etd-07082010-020403

OAI identifier oai:identifier

oai:vtechworks.lib.vt.edu:10919/38735