Accession Number:

ADA172694

Title:

Theoretical and Experimental Analysis of Multidirectionally-Braided Composites.

Descriptive Note:

Departmental rept. Oct 83-Sep 86,

Corporate Author:

DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER ANNAPOLIS MD SHIP MATERIALS ENGINEERING DEPT

Personal Author(s):

• Camponeschi,E. T. , Jr.
• Wall,L. L.
• Crane,R. M.

Report Date:

1986-09-01

Pagination or Media Count:

72.0

Abstract:

The ability of multidirectionally X-D braided composites to contain damage is one of the major advantages offered by this material. This report describes the development of analytical methods for determining the fiber geometry, stiffness, and impact damage response of X-D braided composites. The fiber geometry model is based on the braid parameters used in the construction of X-D braided composites. The stiffness model is based on this fiber geometry model and laminated plate theory. The impact damage model is based on the braided fiber geometry and the fracture toughness of the resin system used in the X-D composite. This report also describes the results of experimental studies conducted to evaluate the results of the theoretical models.

Descriptors:

• *FIBER REINFORCED COMPOSITES
• *BRAIDS
• COMPUTER PROGRAMS
• MATHEMATICAL MODELS
• FIBERS
• IMPACT
• DAMAGE
• STIFFNESS
• TEST METHODS
• TENSION
• GEOMETRY
• DIRECTIONAL

Subject Categories:

• Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE