Accession Number:

ADA101436

Title:

Effective Elastic Properties of Cracked Materials.

Descriptive Note:

Technical rept.,

Corporate Author:

PENNSYLVANIA UNIV PHILADELPHIA COLL OF ENGINEERING AND APPLIED SCIENCE

Personal Author(s):

Report Date:

1981-05-01

Pagination or Media Count:

32.0

Abstract:

The problem of the determination of effective elastic properties of materials containing many interacting cracks has been considered by variational methods. It has been shown that effective elastic moduli expressions for low crack density are general upper bounds for the case of arbitrary crack density. Lower bounds on effective moduli have been obtained on the basis of admissible, stress fields which are expressed in terms of known crack field solutions. Upper and lower bounds are reasonably close together for practically significant range of crack density. Author

Subject Categories:

  • Laminates and Composite Materials
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE