Author: George L. Hanna
Publisher:
ISBN:
Category :
Languages : en
Pages : 112
Book Description
A test program has been conducted to determine the influence of geometrical variables on the ability of the notch bend and single-edge-notch tensile tests to measure valid plane strain fracture toughness value. Data were obtained on 2024-T851 aluminum, D6AC steel heat treated to yield strength values of 208 and 247 ksi, and 6A1-4V titanium. The results indicated that in the bend test four-point loading produced more reproducible values than three-point loading. Fracture toughness values were valid when the major span length-to-width ratio was equal to or greater than four and the crack length-to-width ratio was between 0.20 and 0.40. The single-edge-notch produced less variability than the notch bend test and in general, the point at which the onset of slow crack growth occurred was more easily defined. Valid fracture toughness values were obtained using the existing calibration curves in specimens where the crack length-to-specimen width ratio was between 0.20 and 0.40. (Author).
Development of Standardized Test Methods to Determine Plane Strain Fracture Toughness
Author: George L. Hanna
Publisher:
ISBN:
Category :
Languages : en
Pages : 112
Book Description
A test program has been conducted to determine the influence of geometrical variables on the ability of the notch bend and single-edge-notch tensile tests to measure valid plane strain fracture toughness value. Data were obtained on 2024-T851 aluminum, D6AC steel heat treated to yield strength values of 208 and 247 ksi, and 6A1-4V titanium. The results indicated that in the bend test four-point loading produced more reproducible values than three-point loading. Fracture toughness values were valid when the major span length-to-width ratio was equal to or greater than four and the crack length-to-width ratio was between 0.20 and 0.40. The single-edge-notch produced less variability than the notch bend test and in general, the point at which the onset of slow crack growth occurred was more easily defined. Valid fracture toughness values were obtained using the existing calibration curves in specimens where the crack length-to-specimen width ratio was between 0.20 and 0.40. (Author).
Publisher:
ISBN:
Category :
Languages : en
Pages : 112
Book Description
A test program has been conducted to determine the influence of geometrical variables on the ability of the notch bend and single-edge-notch tensile tests to measure valid plane strain fracture toughness value. Data were obtained on 2024-T851 aluminum, D6AC steel heat treated to yield strength values of 208 and 247 ksi, and 6A1-4V titanium. The results indicated that in the bend test four-point loading produced more reproducible values than three-point loading. Fracture toughness values were valid when the major span length-to-width ratio was equal to or greater than four and the crack length-to-width ratio was between 0.20 and 0.40. The single-edge-notch produced less variability than the notch bend test and in general, the point at which the onset of slow crack growth occurred was more easily defined. Valid fracture toughness values were obtained using the existing calibration curves in specimens where the crack length-to-specimen width ratio was between 0.20 and 0.40. (Author).
Review of Developments in Plane Strain Fracture Toughness Testing
Author:
Publisher: ASTM International
ISBN: 9780803100589
Category : Fracture mechanics
Languages : en
Pages : 278
Book Description
Publisher: ASTM International
ISBN: 9780803100589
Category : Fracture mechanics
Languages : en
Pages : 278
Book Description
Developments in Fracture Mechanics Test Methods Standardization
Author: William F. Brown
Publisher: ASTM International
ISBN: 9780803103214
Category : Technology & Engineering
Languages : en
Pages : 312
Book Description
Publisher: ASTM International
ISBN: 9780803103214
Category : Technology & Engineering
Languages : en
Pages : 312
Book Description
Developments In Fracture Mechanics Test Methods Standardization
Author: W. F Brown
Publisher: ASTM International
ISBN:
Category :
Languages : en
Pages : 296
Book Description
Publisher: ASTM International
ISBN:
Category :
Languages : en
Pages : 296
Book Description
Review of Developments in Plane Strain Fracture Toughness Testing
Author: William F. Brown
Publisher:
ISBN: 9780803100589
Category : Fracture mechanics
Languages : en
Pages : 269
Book Description
Publisher:
ISBN: 9780803100589
Category : Fracture mechanics
Languages : en
Pages : 269
Book Description
Plane Strain Crack Toughness Testing of High Strength Metallic Materials
Author:
Publisher: ASTM International
ISBN:
Category :
Languages : en
Pages : 138
Book Description
Publisher: ASTM International
ISBN:
Category :
Languages : en
Pages : 138
Book Description
Standard test method for plane-strain fracture toughness of metallic materials
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 62
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 62
Book Description
Fracture Toughness Testing
Author: John E. Srawley
Publisher:
ISBN:
Category : Fracture mechanics
Languages : en
Pages : 80
Book Description
A comprehensive survey is presented of current methods of fracture toughness testing that are based on linear elastic fracture mechanics. General principles are discussed in relation to the basic two-dimensional crack stress field model and in relation to real three-dimensional specimens. The designs and necessary dimensions of specimens for mixed mode and opening mode (plane strain) crack toughness measurement are considered in detail. Methods of test instrumentation and procedure are described. Expressions for the calculation of crack toughness values are given for the common types of specimens.
Publisher:
ISBN:
Category : Fracture mechanics
Languages : en
Pages : 80
Book Description
A comprehensive survey is presented of current methods of fracture toughness testing that are based on linear elastic fracture mechanics. General principles are discussed in relation to the basic two-dimensional crack stress field model and in relation to real three-dimensional specimens. The designs and necessary dimensions of specimens for mixed mode and opening mode (plane strain) crack toughness measurement are considered in detail. Methods of test instrumentation and procedure are described. Expressions for the calculation of crack toughness values are given for the common types of specimens.
NASA Technical Note
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 350
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 350
Book Description
The Influence of Crack Length and Thickness in Plane Strain Fracture Toughness Tests
Author: Melvin H. Jones
Publisher:
ISBN:
Category :
Languages : en
Pages : 40
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 40
Book Description