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Specimen Size And Orientation Effects In Chevron Notch Fracture Testing Of Aluminum Alloy Plate
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Book Synopsis Specimen Size and Orientation Effects in Chevron-Notch Fracture Testing of Aluminum Alloy Plate by : KJ. KarisAllen
Download or read book Specimen Size and Orientation Effects in Chevron-Notch Fracture Testing of Aluminum Alloy Plate written by KJ. KarisAllen and published by . This book was released on 1992 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Side grooving of specimens can have a pronounced effect on the fracture behavior of aluminum alloys during plane-strain fracture tests. The first part of this paper describes an investigation of the effect of different amounts of side grooving on KIc determined using compact specimens of varying thicknesses machined from a 6061-T651 plate. The results are also related to KIv measurements made on the same material and are discussed in terms of rising R-curve effects on compact and short-bar fracture specimens.
Book Synopsis Chevron-notch Fracture Test Experience by : Kevin R. Brown
Download or read book Chevron-notch Fracture Test Experience written by Kevin R. Brown and published by ASTM International. This book was released on 1992 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Book Synopsis Chevron-notched Specimens, Testing and Stress Analysis by : John H. Underwood
Download or read book Chevron-notched Specimens, Testing and Stress Analysis written by John H. Underwood and published by ASTM International. This book was released on 1984 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chevron-Notched Specimens for Fracture Toughness Measurements Independent of R-Curve Effects by : LM. Barker
Download or read book Chevron-Notched Specimens for Fracture Toughness Measurements Independent of R-Curve Effects written by LM. Barker and published by . This book was released on 1989 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: A relatively new plane-strain fracture toughness test method based on chevron-notched test specimens has created a keen interest in comparing toughness measurements by the new method against measurements by the conventional method (ASTM E 399). Tests of various aluminum alloys by the two methods have shown a divergence in test results at the higher toughness levels. The rising R-curve effect in tough aluminums has been cited as one of the factors contributing to the observed discrepancy. This paper shows why the chevron-notched test results are independent of rising R-curve effects, whereas ASTM E 399 tests often are not. The E 399 test dependence on the rising R-curve constitutes a specimen size effect, and this dependence is partly responsible for the divergence between chevron-notched and E 399 tests of tougher aluminums. The chevron-notched method produces the toughness values which would be obtained from E 399 measurements if sufficiently large E 399 specimens could be tested.
Author :Christian Bickert Publisher :Metallurgical Society of the Canadian Institute of Mining, Metallurgy and Petroleum = La Société de la métallurgie de l'institut canadien des mines, de la métallurgie et du pétrole ISBN 13 : Total Pages :1026 pages Book Rating :4.0/5 ( download)
Book Synopsis Light Metals Processing and Applications by : Christian Bickert
Download or read book Light Metals Processing and Applications written by Christian Bickert and published by Metallurgical Society of the Canadian Institute of Mining, Metallurgy and Petroleum = La Société de la métallurgie de l'institut canadien des mines, de la métallurgie et du pétrole. This book was released on 1993 with total page 1026 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Specimen Size and Geometry Effects on Fracture Toughness of Aluminum Oxide Measured with Short-Rod and Short-Bar Chevron-Notched Specimens by : DG. Munz
Download or read book Specimen Size and Geometry Effects on Fracture Toughness of Aluminum Oxide Measured with Short-Rod and Short-Bar Chevron-Notched Specimens written by DG. Munz and published by . This book was released on 1984 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plane-strain fracture toughness measurements were made on aluminum oxide using short-rod and short-bar chevron-notched specimens previously calibrated by the authors for their dimensionless stress intensity factor coefficients. The measured toughness varied systematically with variations in specimen size, proportions, and chevron notch angle apparently due to their influence on the amount of crack extension to maximum load (the measurement point). The toughness variations are explained in terms of a suspected rising R-curve for the material tested, along with a discussion of an unavoidable imprecision in the calculation of KIc for materials with rising R-curves when tested with chevron-notched specimens.
Book Synopsis Comparison of Chevron-Notched Specimen Types for Fracture Toughness Testing of Aluminum by : J. Morrison
Download or read book Comparison of Chevron-Notched Specimen Types for Fracture Toughness Testing of Aluminum written by J. Morrison and published by . This book was released on 1989 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is increasing interest in the use of chevron-notched specimens for the measurement of plane-strain fracture toughness. Attention has been focussed on the short rod/bar specimens, for which several different geometries have been proposed. This paper describes a series of tests on 6061-T651 aluminum alloy aimed at providing a comparison of five short rod/bar specimen types with three different thicknesses. Also included are data from standard compact-tension specimens.
Book Synopsis A Review of Chevron-notched Fracture Specimens by :
Download or read book A Review of Chevron-notched Fracture Specimens written by and published by . This book was released on 1984 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metals Abstracts written by and published by . This book was released on 1996 with total page 1650 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis More on Specimen Size Effects in Fracture Toughness Testing by : JG. Kaufman
Download or read book More on Specimen Size Effects in Fracture Toughness Testing written by JG. Kaufman and published by . This book was released on 1974 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new study of the effect of specimen size on the results of plane-strain fracture toughness tests of a relatively tough aluminum alloy, 2219-T851, suggests that an increase in specimen size requirements may be necessary to assure size-independent test results. Specifically, it appears that the crack length limit should be increased to 5(KIc/?YS)2, which has the effect of keeping the maximum nominal net-section stress below two thirds of the yield strength. The current limit on thickness could be maintained at 2.5 (KIc/?YS)2, although there is some evidence that it might be relaxed further. Additional work is needed to check the generality of these suggestions for other materials, as well as the possibility that if W/B=2 and a=B ? 5(KIc/?YS)2, Kmax, may be useful as an engineering estimate of KIc.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Performance of Chevron-Notch Short Bar Specimen in Determining the Fracture Toughness of Silicon Nitride and Aluminum Oxide by : D. Munz
Download or read book Performance of Chevron-Notch Short Bar Specimen in Determining the Fracture Toughness of Silicon Nitride and Aluminum Oxide written by D. Munz and published by . This book was released on 1980 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Fracture Toughness Testing and Its Applications by :
Download or read book Fracture Toughness Testing and Its Applications written by and published by ASTM International. This book was released on 1965 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Publications of the National Institute of Standards and Technology ... Catalog by : National Institute of Standards and Technology (U.S.)
Download or read book Publications of the National Institute of Standards and Technology ... Catalog written by National Institute of Standards and Technology (U.S.) and published by . This book was released on 1994 with total page 1162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fracture Toughness Testing and Its Applications by : ASTM Committee E-24 Staff
Download or read book Fracture Toughness Testing and Its Applications written by ASTM Committee E-24 Staff and published by ASTM International. This book was released on 1981-10 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Specimen Type and Crack Orientation on Fracture Toughness by : Sidney O. Davis
Download or read book Effect of Specimen Type and Crack Orientation on Fracture Toughness written by Sidney O. Davis and published by . This book was released on 1967 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of specimen type on the room temperature plane strain fracture toughness of three aluminum alloys: 7079-T6, 7075-T6, and 7001-T75, is presented. The difference in K sub Ic as evaluated with center notch, single edge notch, slow bend, surface flaw and wedge opening loading specimens is discussed. The orientation of the crack plane and crack propagation direction with respect to the working direction, or grain orientation, of the alloys is considered. The possible influence of crack plane and propagation direction on the resulting plane strain fracture toughness value is discussed. The surface flaw specimens seem to yield the highest K sub Ic value followed by slow bend, single edge notch and center notch specimens. The slow bend and surface flaw specimens were the most sensitive to material variability. Differences in orientation between crack propagation direction and material grain morphology are shown to affect K sub Ic. For 7001-T75 and 7079-T6, the order of decreasing fracture resistance with respect to crack propagation direction is short transverse, long transverse and longitudinal. For 7075-T6 the order is long transverse, short transverse, and longitudinal. (Author).
