Accession Number:

ADA621761

Title:

Computational Analysis of Effect of Transient Fluid Force on Composite Structures

Descriptive Note:

Master's thesis

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

• Knutton, Scott C.

Report Date:

2013-12-01

Pagination or Media Count:

125.0

Abstract:

This study investigated the peak pressure applied to a composite structure under various transient velocity profiles, fluid boundary conditions, as well as structural geometric configurations and material properties. Then, the resultant dynamic responses of the composite structures were investigated. The study was conducted by modeling fluid-structure interaction using the finite-element and finite-volume analysis technique. The results showed that the peak pressure and the resultant stresses in the composite structures are significantly dependent on the accelerating state as well as fluid boundary conditions. The peak stresses determined in this study were between three and 16 times larger than the steady state stress for the given fluid acceleration profile.

Descriptors:

• *COMPOSITE STRUCTURES
• *FINITE ELEMENT ANALYSIS
• *FLUIDS
• ACCELERATION
• BOUNDARIES
• COMPUTATIONS
• DYNAMIC RESPONSE
• GEOMETRIC FORMS
• INTERACTIONS
• MODELS
• PEAK VALUES
• PRESSURE
• PROFILES
• STEADY STATE
• STRESSES
• STRUCTURAL PROPERTIES
• STRUCTURES
• THESES
• TRANSIENTS
• VELOCITY

Subject Categories:

• Laminates and Composite Materials
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE