Accession Number:
ADA009525
Title:
Size Requirements for Fatigue-Cracked Fracture Toughness Screening Specimens.
Descriptive Note:
Final rept. Aug 73-Dec 74,
Corporate Author:
METAL PROPERTIES COUNCIL INC HELLERTOWN PA
Personal Author(s):
Report Date:
1974-12-01
Pagination or Media Count:
75.0
Abstract:
Aluminum, titanium and steel alloys were selected on the basis of their strengthtoughness properties for the purpose of investigating the performance of a proposed fatigue-cracked fracture toughness screening specimen. Specimens of varying thicknesses and widths were tested with the largest specimen of each alloy satisfying the minimum size requirements according to ASTM-E-399-74 specifications. The results of this program demonstrate the feasibility of the proposed specimen configuration with lowest width to thickness ratio showing the best correlation between the net-fracture strength and plane strain fracture toughness K sub I sub C. Further investigation is warranted to assess the effects of specimen eccentricity and other limitations related to relative toughness of the material.
Descriptors:
Subject Categories:
- Metallurgy and Metallography