Accession Number:

ADA222702

Title:

Role of Interfaces and Interphases in the Evolution Mechanics of Material Systems

Descriptive Note:

Annual rept. 1 Dec 1988-1 Dec 1989

Corporate Author:

VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG DEPT OF ENGINEERING SCIENCE AND MECHANICS

Report Date:

1989-12-31

Pagination or Media Count:

34.0

Abstract:

The general objective of this investigation is to apply the discipline of mechanics to the prediction and description of the long-term behavior of composite materials by developing experimental information, conceptual understanding, and analytical representations of the evolution of the properties of constituent materials and interfaces in composite material systems as a function of generalized time during the application of time-variable mechanical, thermal, and chemical loadings. The general approach to this objective is to develop mechanistic representations of the state of the material under those conditions, and to join those descriptions with micromechanical descriptions of the state of stress in critical elements to support an estimate of remaining strength, and, thereby, to predict remaining life. We have named this enterprise evolution mechanics.

Subject Categories:

  • Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE