Accession Number:
AD0752446
Title:
Some Critical Studies of Macroscopic and Microscopic Fracture Criteria for Steel.
Descriptive Note:
Technical rept.,
Corporate Author:
CALIFORNIA UNIV LOS ANGELES SCHOOL OF ENGINEERING AND APPLIED SCIENCE
Personal Author(s):
Report Date:
1972-09-01
Pagination or Media Count:
43.0
Abstract:
Research shows how plane strain values of the crack tip opening displacement, COD, can be determined on pre-cracked Charpy specimens loaded well beyond general yield. The measurements are then used to determine K sub Ic values that agree with valid measurements on twelve inch thick specimens of A533 steel. The results of an experimental and analytic visioplasticity investigation is described which allows a determination to be made of the critical local strain required to initiate fracture at the tip of a sharp notch. The report also presents the results and analysis of a study to determine quantitative relations between K sub Ic and K sub Id and microscopic variables such as grain size for cleavage fracture that occurs at low temperatures. Author
Descriptors:
Subject Categories:
- Metallurgy and Metallography