Accession Number : AD0725752

Title :   An Application of Fracture Concepts to the Prediction of Critical Length of Fatigue Cracks. Part III. A Unified Theory for Fracture of Metal and Alloys.

Descriptive Note : Technical rept. Jun 69-Jun 70,

Corporate Author : AIR FORCE MATERIALS LAB WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Davis.,Sidney O.

Report Date : APR 1971

Pagination or Media Count : 87

Abstract : A thermodynamic energy approach is used to develop a unified theory of fracture relative to mechanical response of metals and alloys as a function of the atomic, and metallurgical structures and the phenomenological aggregate levels collectively. Fracture (stable cracking) and fracture dynamics (unstable cracking) are correlated in terms of the theory based upon the process of energy transformation and in terms of mechanical and thermal energy of the First Law of Thermodynamics. (Author)

Descriptors :   (*FRACTURE(MECHANICS), *THERMODYNAMICS), (*METALS, FRACTURE(MECHANICS)), PHASE STUDIES, CRACKS, FATIGUE(MECHANICS), STRESSES

Subject Categories : Properties of Metals and Alloys
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE