Accession Number:

ADA172440

Title:

The Collapse of Composite Cylindrical Panels with Various Cutout Locations Considering Material Degradation.

Descriptive Note:

Master's thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s):

• Hermsen,Michael F.

Report Date:

1986-03-01

Pagination or Media Count:

154.0

Abstract:

The purpose of this thesis is to study the effects of material degradation on panels with cutouts. To observe this effect, one first has to establish the critical positions of specific size cutouts within the panel. In order to do this, the effect of a cutout located at different positions within the composite cylindrical panel subjected to an axial loading will be studied analytically using the structural Analysis of General Shells STAGSC-1 computer program. Then secondly, material degradation effects due to temperature and moisture at the critical cutout locations will be analyzed. Upon completion, this thesis will allow for a better understanding of axially loaded composite cylindrical shells with cutouts under less then perfect conditions. Keywords Shell analysis, Finite elements.

Descriptors:

• *COMPOSITE STRUCTURES
• *SHELLS(STRUCTURAL FORMS)
• *EPOXY COMPOSITES
• *COLLAPSE
• COMPRESSION
• COMPUTER PROGRAMS
• LOAD DISTRIBUTION
• DEGRADATION
• MATERIALS
• FINITE ELEMENT ANALYSIS
• LOADS(FORCES)
• PANELS
• STRUCTURAL ANALYSIS
• THESES
• GRAPHITE
• CYLINDRICAL BODIES
• HOLES(OPENINGS)
• AXES
• MOISTURE
• THERMAL DEGRADATION

Subject Categories:

• Laminates and Composite Materials
• Structural Engineering and Building Technology
• Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE