Author: Stanley Theodore Rolfe
Publisher:
ISBN:
Category : Strength of materials
Languages : en
Pages : 34
Book Description
Brittle Fractures Tests of Two Foot Wide Steel Plates with a Residual Compressive Strain in the Central Portion
Author: Stanley Theodore Rolfe
Publisher:
ISBN:
Category : Strength of materials
Languages : en
Pages : 34
Book Description
Publisher:
ISBN:
Category : Strength of materials
Languages : en
Pages : 34
Book Description
SSC.
Author: United States. Ship Structure Committee
Publisher:
ISBN:
Category : Naval research
Languages : en
Pages : 100
Book Description
Publisher:
ISBN:
Category : Naval research
Languages : en
Pages : 100
Book Description
Welding Journal
Author:
Publisher:
ISBN:
Category : Welding
Languages : en
Pages : 1812
Book Description
"Current welding literature" included in each volume.
Publisher:
ISBN:
Category : Welding
Languages : en
Pages : 1812
Book Description
"Current welding literature" included in each volume.
U.S. Government Research Reports
Brittle Fracture Tests of Steel Plates Containing Residual Compressive Strain
Author: S. T. Rolfe
Publisher:
ISBN:
Category : Strength of materials
Languages : en
Pages : 7
Book Description
Publisher:
ISBN:
Category : Strength of materials
Languages : en
Pages : 7
Book Description
U.S. Government Research Reports
Summary of Some Studies of Brittle-fracture Propagation
Author: William Joel Hall
Publisher:
ISBN:
Category : Metals
Languages : en
Pages : 13
Book Description
Six-foot-wide plain plate specimens tested at an average applied stress of about 20 ksi, a temperature of 0 F, and with the notch-wedgeimpact method of initiation, produced fracture speeds in the range of 2000 to 4000 fps. Sixfoot-wide prestressed steel plates with a region of high tensile residual strain at each edge, and a region of residual compression in the central portion, tested at zero or 3 ksi average applied stress, at 0 F, and with impact initiation, produced fracture speeds of 6000 fps in the tensile zone near the initiation source, and speeds as low as 50 fps. Two-foot-wide centrally notched and welded specimens fabricated in different ways and tested at an average applied stress of about 10 ksi and a temperature of -40 F, produced speed within 1 1/2 inches of the initiation source and in a region of high residual tensile stress as high as 5000 fps; whereas speeds throughout the remainder of the specimen, which initially possessed a low compressive residual stress, were on the order of 1800 fps. (Author).
Publisher:
ISBN:
Category : Metals
Languages : en
Pages : 13
Book Description
Six-foot-wide plain plate specimens tested at an average applied stress of about 20 ksi, a temperature of 0 F, and with the notch-wedgeimpact method of initiation, produced fracture speeds in the range of 2000 to 4000 fps. Sixfoot-wide prestressed steel plates with a region of high tensile residual strain at each edge, and a region of residual compression in the central portion, tested at zero or 3 ksi average applied stress, at 0 F, and with impact initiation, produced fracture speeds of 6000 fps in the tensile zone near the initiation source, and speeds as low as 50 fps. Two-foot-wide centrally notched and welded specimens fabricated in different ways and tested at an average applied stress of about 10 ksi and a temperature of -40 F, produced speed within 1 1/2 inches of the initiation source and in a region of high residual tensile stress as high as 5000 fps; whereas speeds throughout the remainder of the specimen, which initially possessed a low compressive residual stress, were on the order of 1800 fps. (Author).
Applied Mechanics Reviews
Brittle-fracture Tests of Steel Plates Containing Residual Compressive Strain
Author: S. T. Rolfe
Publisher:
ISBN:
Category : Strength of materials
Languages : en
Pages : 1
Book Description
Publisher:
ISBN:
Category : Strength of materials
Languages : en
Pages : 1
Book Description
Brittle Fracture Propagation Studies
Author: F. F. Videon
Publisher:
ISBN:
Category : Plates, Iron and steel
Languages : en
Pages : 35
Book Description
This investigation was undertaken to study lowvelocity brittle fracture in wide steel plates. The detailed results of two tests of 6-ft-wide prestressed steel plates are presented along with pertinent observations from tests of similar specimens; also, results of nineteen tests of 2-ft-wide centrally notched plates. In 6-ft-wide prestressed plates, the residual stress field (longitudinal tensile stresses at the edges of the plate balanced by compressive stresses throughout the central portion) made initiation possible with no external applied stress, and had a significant effect on the fracture propagation. Fracture speeds were high (4000-6000 fps) near the edges of the plates and decreased rapidly to as low as l65 fps as the fracture propagated into the region of compressive stresses. In the lowspeed regions the magnitude and extent of the dynamic strain field associated with the crack tip was considerably less than had been recorded in earlier tests of high-speed fractures in plain plates. (Author).
Publisher:
ISBN:
Category : Plates, Iron and steel
Languages : en
Pages : 35
Book Description
This investigation was undertaken to study lowvelocity brittle fracture in wide steel plates. The detailed results of two tests of 6-ft-wide prestressed steel plates are presented along with pertinent observations from tests of similar specimens; also, results of nineteen tests of 2-ft-wide centrally notched plates. In 6-ft-wide prestressed plates, the residual stress field (longitudinal tensile stresses at the edges of the plate balanced by compressive stresses throughout the central portion) made initiation possible with no external applied stress, and had a significant effect on the fracture propagation. Fracture speeds were high (4000-6000 fps) near the edges of the plates and decreased rapidly to as low as l65 fps as the fracture propagated into the region of compressive stresses. In the lowspeed regions the magnitude and extent of the dynamic strain field associated with the crack tip was considerably less than had been recorded in earlier tests of high-speed fractures in plain plates. (Author).