Accession Number:

ADA191879

Title:

Interaction of Ultrasonic Waves with Composite Plates.

Descriptive Note:

Annual technical rept. 15 Dec 86-15 Dec 87,

Corporate Author:

CINCINNATI UNIV OH DEPT OF AEROSPACE ENGINEERING AND ENGINEERING MECHANICS

Personal Author(s):

• Nayfeh, Adnan H.

Report Date:

1987-12-15

Pagination or Media Count:

41.0

Abstract:

During the second year of our reporting period we continued our close cooperation with the NDE Branch on the Materials Lab at Wright-Patterson Air Force Base. For our part, we continued developing analytical and computational methods on the modeling of the mechanical behavior of fibrous composites for applications in the NDE field. Specifically, we extended our theoretical models which were developed to describe the behavior of single unidirectional fiber-reinforced plates, to more general plates. These included single and multilayered plates. For the single laminated plate the solutions are extended for arbitrary azimuthal angles and hence resulted in three dimensional analysis.

Descriptors:

• *COMPOSITE STRUCTURES
• *PLATES
• *ULTRASONICS
• *FIBER REINFORCED COMPOSITES
• COMPOSITE MATERIALS
• FIBER REINFORCEMENT
• LAMINATES
• MECHANICAL PROPERTIES
• NUMERICAL METHODS AND PROCEDURES
• THREE DIMENSIONAL
• UNIDIRECTIONAL
• MATHEMATICAL MODELS
• ISOTROPISM
• ULTRASONIC TESTS

Subject Categories:

• Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE