Theses and Dissertations
Progressive failure modeling in notched cross-ply fibrous composites
(Monterey, California. Naval Postgraduate School, 1999-03-01)
The objective of this study was to model and simulate progressive failure initiating from a notch tip in a laminated fibrous composite subjected to tensile in-plane loading. The micro/macro-level approach was used for this ...
Heat conduction analysis of randomly dispersed singlewalled carbon nanotubes
(Monterey, California. Naval Postgraduate School, 2007-06)
This thesis studies the effective thermal conductivity of randomly oriented, percolated carbon nanotubes. To that end, a multiscale analysis approach was adopted. At the nanoscale, molecular dynamics simulation was performed ...
Analytical modeling of composite-to-composite (scarf) joints in tension and compression
(Monterey, California. Naval Postgraduate School, 2007-06)
Fracture mechanics-based multi-level computational modeling and simulation techniques were developed to predict failure strengths of composite scarf joints under tension or compression. Global, local, and element level ...
Finite element modeling of metal foam structures subject to compressive loading
(Monterey, California. Naval Postgraduate School, 2001-12)
A unit-cell model was developed for open metallic foams in order to predict their effective elastic moduli and the plastic collapse strengths. The model is based on the metallic ligament frame of tetrakaidecahedral shape. ...
Biomechanical response of the human body inside a military vehicle exposed to mine explosion
(Monterey, California. Naval Postgraduate School, 1998-12)
Biomechanical response of the human body inside a military vehicle exposed to AP mine explosion was studied using the finite element method. The main focus was placed on evaluation of the injury potential of the human body, ...
Multi-scale analysis of a 2/2-twill woven fabric composite
(Monterey, California. Naval Postgraduate School, 2002-03)
A micro-mechanical unit-cell model was developed for 2/2-twill woven fabric composites. A multi-scale bi-directional micro/macro-mechanical analysis technique was applied to the model in an effort to estimate effective ...
Effect of surface coating on cylinders subjected to underwater shock
(Monterey, California. Naval Postgraduate School, 1992-09)
The response of a composite cylinder (metallic cylinder coated with a rubber material) subjected to an underwater explosion was analyzed numerically. Qualitative differences between coated and uncoated cylinders were ...
Numerical Study for Optimum Parameters of Bonded Composite Repairs of Cracked Aluminum
(Monterey, California. Naval Postgraduate School, 2012-06)
This thesis used Finite Element Analysis to model a cracked aluminum panel repaired with a bonded composite patch using the minimization of energy release rate in mode I crack growth conditions to determine effectiveness ...
Experimental study of inelastic stress concentration around a circular notch
(Monterey, California. Naval Postgraduate School, 1996-03)
Experiments were conducted to determine whether energy-density relations can be used to predict elastic-plastic stresses and strains near a circular notch for 7075-T6 aluminum alloys and ARALL 4 composites. The loading ...
Modeling of crack initiation and growth in solid rocket propellants using macromechanics and micromechanics theories
(Monterey, California. Naval Postgraduate School, 1996-09)
Modeling and simulation of crack initiation and propagation in solid rocket propellant materials were conducted using both the macromechanics approach and the micro/macromechanics approach. Due to their composition, the ...
Refine By:
Advisor
-
Kwon, Young W. (132)
Author
Branch Of Service
Date Issued
Degree
Department
-
Mechanical Engineering (132)
Type
-
Thesis (132)