Accession Number:

ADA027154

Title:

Static and Dynamic Analysis of Thermoviscoelastoplastic Fiber-Reinforced Composite Shells in Missile Structures.

Descriptive Note:

Final rept 1975-1976,

Corporate Author:

ALABAMA UNIV IN HUNTSVILLE DEPT OF MECHANICAL ENGINEERING

Personal Author(s):

• Chung,T. J.
• Eidson,R. L.

Report Date:

1976-05-01

Pagination or Media Count:

185.0

Abstract:

It has been postulated that anisotropic structures such as the fiber composites should be governed by kinematic hardening. The final phase of this research therefore, was undertaken to investigate the feasibility of incorporating the changes of degrees of anisotropy during the post-yielding deformations. The present report describes the development of kinematic plastic function theory, the first of its kind ever used for the analysis of fiber composites. The method requires a considerable amount of computing time, but upon careful reprogramming, it is believed to be a powerful tool in the analysis of missile structures.

Descriptors:

• *VISCOELASTICITY
• *FIBER REINFORCED COMPOSITES
• *SHELLS(STRUCTURAL FORMS)
• *ROCKET ENGINE CASES
• KINEMATICS
• THERMAL PROPERTIES
• COMPUTERIZED SIMULATION
• FINITE ELEMENT ANALYSIS
• NUMERICAL ANALYSIS
• ELASTIC PROPERTIES
• ORIENTATION(DIRECTION)
• MATHEMATICAL PREDICTION
• ANISOTROPY
• GLASS FIBERS
• PLASTIC PROPERTIES
• YIELD STRENGTH
• EPOXY RESINS
• HARDENING
• GUIDED MISSILE COMPONENTS

Subject Categories:

• Laminates and Composite Materials
• Mechanics
• Rocket Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE