Evaluation of the Chevron Notch Fracture Toughness Test for Brittle Materials
Author : J. M. Paddon
Publisher :
Page : 102 pages
File Size : 14,59 MB
Release : 1992
Category : Materials
ISBN :
Author : J. M. Paddon
Publisher :
Page : 102 pages
File Size : 14,59 MB
Release : 1992
Category : Materials
ISBN :
Author : Kevin R. Brown
Publisher : ASTM International
Page : 200 pages
File Size : 48,59 MB
Release : 1992
Category : Fracture mechanics
ISBN : 080311480X
Reviews the latest information and experimentation on the fracture-toughness testing of materials using specimens that are chevron notched, a procedure that has been an ASTM standard only since December 1989. The 13 papers were presented at a symposium in Indianapolis, May 1991; they include studies
Author : John H. Underwood
Publisher : ASTM International
Page : 353 pages
File Size : 47,27 MB
Release : 1984
Category : Technology & Engineering
ISBN : 9780803104013
Author : Stephen W. Freiman
Publisher : John Wiley & Sons
Page : 256 pages
File Size : 36,20 MB
Release : 2019-01-07
Category : Technology & Engineering
ISBN : 1118769708
Provides a modern, practical approach to the understanding and measurement procedures relevant to the fracture of brittle materials This book examines the testing and analysis of the fracture of brittle materials. Expanding on the measurement and analysis methodology contained in the first edition, it covers the relevant measurements (toughness and strength), material types, fracture mechanics, measurement techniques, reliability and lifetime predictions, microstructural considerations, and material/test selection processes appropriate for the analysis of the fracture behavior of brittle materials. The Fracture of Brittle Materials: Testing and Analysis, Second Edition summarizes the concepts behind the selection of a test procedure for fracture toughness and strength, and goes into detail on how the statistics of fracture can be used to assure reliability. It explains the importance of the role of microstructure in these determinations and emphasizes the use of fractographic analysis as an important tool in understanding why a part failed. The new edition includes a significant quantity of material related to the fracture of biomaterials, and features two new chapters—one on thermal shock, the other on the modeling of the fracture process. It also expands on a discussion of how to treat the statistics of fracture strength data to ensure reliability. Provides practical analysis of fracture toughness and strength Introduces the engineering and materials student to the basic concepts necessary for analyzing brittle fracture Contains new statistical analysis procedures to allow for the prediction of the safe design of brittle components Contains real-world examples to assist the reader in applying the concepts to their own research, material development, and quality-control needs The Fracture of Brittle Materials: Testing and Analysis, Second Edition is an important resource for all students, technicians, engineers, scientists, and researchers involved in the study, analysis, creation, or testing of ceramics.
Author : Jonathan A. Salem
Publisher : ASTM International
Page : 228 pages
File Size : 45,21 MB
Release : 2002
Category : Brittleness
ISBN : 0803128800
From a November 2000 symposium in Orlando, Florida, 14 papers review the new standards promulgated by American, European, and Japanese professional associations for testing fracture toughness, slow crack growth, and biaxial strength in brittle ceramics. They address a variety of topics regarding imp
Author :
Publisher :
Page : 58 pages
File Size : 47,38 MB
Release : 1984
Category :
ISBN :
Author : D. Munz
Publisher :
Page : 5 pages
File Size : 26,65 MB
Release : 1980
Category : Brittleness
ISBN :
Ease of preparation and testing are advantages unique to the chevron-notch specimen used for the determination of the plane strain fracture toughness of extremely brittle materials. During testing, a crack develops at the notch tip and extends stably as the load is increased. For a given specimen and notch configuration, maximum load always occurs at the same relative crack length independent of the material. Fracture toughness is determined from the maximum load with no need for crack length measurement. Chevron notch acuity is relatively unimportant since a crack is produced during specimen loading. In this paper, the authors use their previously determined stress intensity factor relationship for the chevron-notch short bar specimen to examine the performance of that specimen in determining the plane strain fracture toughness of silicon nitride and aluminum oxide.
Author : ASTM Committee E-24 Staff
Publisher : ASTM International
Page : 430 pages
File Size : 21,89 MB
Release : 1981-10
Category : Technology & Engineering
ISBN : 9780803101050
Author :
Publisher : ASTM International
Page : 417 pages
File Size : 41,7 MB
Release : 1965
Category :
ISBN :
Author : L. Chuck
Publisher :
Page : 9 pages
File Size : 28,30 MB
Release : 1984
Category : Bend test
ISBN :
This study describes experimental difficulties in the use of the chevron-notch bend test to determine the plane-strain fracture toughness, KIc, for brittle materials. Four-point flexure tests were performed on soda-lime-silica glass and vitreous silica in both "wet" and "dry" environments and at various loading rates. Results show that an inability to produce stable crack growth in the chevron-notch bend test can lead to serious overestimates of KIc as well as to significant scatter in the data. It is also shown that water enhanced crack growth can reduce the measured value of KIc.