Performance of Chevron-Notch Short Bar Specimen in Determining the Fracture Toughness of Silicon Nitride and Aluminum Oxide PDF Download
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Author: D. Munz Publisher: ISBN: Category : Brittleness Languages : en Pages : 5
Book Description
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: D. Munz Publisher: ISBN: Category : Brittleness Languages : en Pages : 5
Book Description
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: Kevin R. Brown Publisher: ASTM International ISBN: 080311480X Category : Fracture mechanics Languages : en Pages : 200
Book Description
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: E.M. Lenoe Publisher: Springer Science & Business Media ISBN: 1468439650 Category : Technology & Engineering Languages : en Pages : 808
Book Description
The Sixth Army Materials Technology Conference, IICeramics for High Performance Applications-II I-Reliabilityll , was co-sponsored by the Army Materials and Mechanics Research Center and the U. S. Department of Energy, Office of Transportation Programs . The program highlighted all issues relevant to the reliability of ceramics in advanced systems. The conference emphasized programmatic reviews of the major efforts on ceramic gas turbine technology, on an international basis. The conference showed how ceramic design, materials development, materials processing, NDE, and component systems testing are being integrated and iterated in specific engine development programs . Further , the conference promoted inter change among the various technical disciplines working in the advanced turbine and heat engine areas. This volume will join its earlier companions, Ceramics for High Performance A lications (1974), and Ceramics for High Performance Applications-II 1 7 ,in chronicling the rapid progress being made in the applicaton of ceramics to the very demanding service environ ment of gas turbine and piston engines. At the last meeting of this series at Newport, R t, in March 1977, successful high temperature tests of ceramic components in test rigs were described.
Author: Publisher: ISBN: Category : Aeronautics Languages : en Pages : 748
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author: Richard Carl Bradt Publisher: Springer Science & Business Media ISBN: 9780306410222 Category : Technology & Engineering Languages : en Pages : 698
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