Author: JW. Bray
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 13
Book Description
Chevron-notched short bar fracture toughness (KIvM per ASTM E 1304) has been correlated with plane strain fracture toughness (KIc or KQ per ASTM E 399 or ASTM B 645) for commercial 2124-T851, 7050-T7451, 7050-T7651, and 7475-T7351 plate.
Use of the Chevron-Notched Short Bar Test to Guarantee Fracture Toughness for Lot Release in Aluminum Alloys
Author: JW. Bray
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 13
Book Description
Chevron-notched short bar fracture toughness (KIvM per ASTM E 1304) has been correlated with plane strain fracture toughness (KIc or KQ per ASTM E 399 or ASTM B 645) for commercial 2124-T851, 7050-T7451, 7050-T7651, and 7475-T7351 plate.
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 13
Book Description
Chevron-notched short bar fracture toughness (KIvM per ASTM E 1304) has been correlated with plane strain fracture toughness (KIc or KQ per ASTM E 399 or ASTM B 645) for commercial 2124-T851, 7050-T7451, 7050-T7651, and 7475-T7351 plate.
Chevron-notch Fracture Test Experience
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
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
The Use of the Chevron-Notched Short-Bar Specimen for Plane-Strain Toughness Determination in Aluminum Alloys
Author: KR. Brown
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 18
Book Description
An extensive study of the use of the chevron-notched short-bar (CNSB) specimen for measuring plane-strain fracture toughness in high-strength aluminum alloys is reported. The toughness measured in a CNSB specimen, KSB, correlates closely with plane-strain fracture toughness, KIc, for toughnesses less than 35 MPa m1/2. At higher toughnesses KSB is higher than KIc for two reasons; first, sample heterogeneity causes the different sized specimens to sample different material, and second, an effect of rising crack growth resistance in the toughness range 40 to 55 MPa m1/2; these latter test results should be considered invalid; however, within this range the KIc, KSB correlation, although largely empirical, is still useful for screening purposes.
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 18
Book Description
An extensive study of the use of the chevron-notched short-bar (CNSB) specimen for measuring plane-strain fracture toughness in high-strength aluminum alloys is reported. The toughness measured in a CNSB specimen, KSB, correlates closely with plane-strain fracture toughness, KIc, for toughnesses less than 35 MPa m1/2. At higher toughnesses KSB is higher than KIc for two reasons; first, sample heterogeneity causes the different sized specimens to sample different material, and second, an effect of rising crack growth resistance in the toughness range 40 to 55 MPa m1/2; these latter test results should be considered invalid; however, within this range the KIc, KSB correlation, although largely empirical, is still useful for screening purposes.
Fracture Resistance of Aluminum Alloys
Author: John Gilbert Kaufman
Publisher: ASM International
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 248
Book Description
Kaufman prevents this summary of data on the fracture characteristics of aluminum alloys, broadly based on a publication by Alcoa in 1964, Fracture Characteristics of Aluminum Alloys . Coverage includes tensile properties as indicators of fracture behavior; notched-bar impact and related tests for t
Publisher: ASM International
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 248
Book Description
Kaufman prevents this summary of data on the fracture characteristics of aluminum alloys, broadly based on a publication by Alcoa in 1964, Fracture Characteristics of Aluminum Alloys . Coverage includes tensile properties as indicators of fracture behavior; notched-bar impact and related tests for t
Chevron-notched Specimens, Testing and Stress Analysis
Author: John H. Underwood
Publisher: ASTM International
ISBN: 9780803104013
Category : Technology & Engineering
Languages : en
Pages : 353
Book Description
Publisher: ASTM International
ISBN: 9780803104013
Category : Technology & Engineering
Languages : en
Pages : 353
Book Description
Comparison of Chevron-Notched Specimen Types for Fracture Toughness Testing of Aluminum
Author: J. Morrison
Publisher:
ISBN:
Category : Aluminum
Languages : en
Pages : 6
Book Description
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.
Publisher:
ISBN:
Category : Aluminum
Languages : en
Pages : 6
Book Description
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.
Aluminum and Aluminum Alloys
Author: Joseph R. Davis
Publisher: ASM International
ISBN: 9780871704962
Category : Technology & Engineering
Languages : en
Pages : 802
Book Description
This one-stop reference is a tremendous value and time saver for engineers, designers and researchers. Emerging technologies, including aluminum metal-matrix composites, are combined with all the essential aluminum information from the ASM Handbook series (with updated statistical information).
Publisher: ASM International
ISBN: 9780871704962
Category : Technology & Engineering
Languages : en
Pages : 802
Book Description
This one-stop reference is a tremendous value and time saver for engineers, designers and researchers. Emerging technologies, including aluminum metal-matrix composites, are combined with all the essential aluminum information from the ASM Handbook series (with updated statistical information).
New Formulae for Determining Fracture Toughness of a Wide Range of Different Materials with Chevron-Notched Short-Rod and Short-Bar Specimens
Author: XC. Yin
Publisher:
ISBN:
Category : Brittle materials
Languages : en
Pages : 9
Book Description
New formulae are presented to re-evaluate plain strain fracture toughness of brittle and ductile materials from previous works on chevron-notched specimens. The fracture toughness KIm from the new formulae agree with values of KIC from ASTM specimens. The KIm measurements are successful in tests of tough aluminum when the fracture toughness exceeds 40 MPa . m1 2 and steel 20G with the plasticity factor p approach 1. It is found that the valid specimen size could be smaller than 1.25(KIC/?S)2 for aluminum alloys, and even less than 0.1(KIC/?S) for steel 20G when the KIm formulae are used.
Publisher:
ISBN:
Category : Brittle materials
Languages : en
Pages : 9
Book Description
New formulae are presented to re-evaluate plain strain fracture toughness of brittle and ductile materials from previous works on chevron-notched specimens. The fracture toughness KIm from the new formulae agree with values of KIC from ASTM specimens. The KIm measurements are successful in tests of tough aluminum when the fracture toughness exceeds 40 MPa . m1 2 and steel 20G with the plasticity factor p approach 1. It is found that the valid specimen size could be smaller than 1.25(KIC/?S)2 for aluminum alloys, and even less than 0.1(KIC/?S) for steel 20G when the KIm formulae are used.
Annual Book of ASTM Standards
Author: ASTM International
Publisher:
ISBN:
Category : Materials
Languages : en
Pages : 830
Book Description
Publisher:
ISBN:
Category : Materials
Languages : en
Pages : 830
Book Description
Performance of Chevron-Notch Short Bar Specimen in Determining the 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.
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.