scholarly journals Erratum: “The Influence of Stress-State and Inclusion Content on Ductile Fracture With Rotation” (Journal of Basic Engineering, 1967, 89, pp. 533–540)

1968 ◽  
Vol 90 (1) ◽  
pp. 141-141
Author(s):  
V. A. Tipnis ◽  
N. H. Cook
Keyword(s):  
Stress State ◽  
Ductile Fracture ◽  
Inclusion Content

The Influence of Stress-State and Inclusion Content on Ductile Fracture With Rotation

1967 ◽  
Vol 89 (3) ◽  
pp. 533-540 ◽  
Author(s):  
V. A. Tipnis ◽  
N. H. Cook
Keyword(s):  
Stress State ◽  
Ductile Fracture ◽  
Normal Stress ◽  
Shear Deformation ◽  
Fracture Strain ◽  
Normal Stresses ◽  
Inclusion Content ◽  
The Mean ◽  
Metal Processing ◽  
Tubular Specimens

A study of flow and fracture under combined shear and normal stresses in deformation regions with rotations was undertaken using tubular specimens. The results of the microscopic study for the four resulfurized steels tested show that rotations play an important role in ductile fracture at inclusions even when the mean normal stress is compressive. Two mechanisms for ductile fracture with rotation are proposed. On the gross scale a relationship is found between the fracture strain and the stress state for a given inclusion content. Also, a strong inverse dependence of fracture strain on inclusion content is obtained. These results appear useful to determine limiting shear deformation in metal processing operations.

A Study on the Effect of the Stress State on Ductile Fracture

2009 ◽  
Vol 19 (1) ◽  
pp. 75-94 ◽  
Author(s):  
Xiaosheng Gao ◽  
Guihua Zhang ◽  
Charles Roe
Keyword(s):  
Stress State ◽  
Ductile Fracture

The influence of Mn dispersoid content and stress state on ductile fracture of 2134 type Al alloys

1989 ◽  
Vol 37 (11) ◽  
pp. 2861-2871 ◽  
Author(s):  
J.A. Walsh ◽  
K.V. Jata ◽  
E.A. Starke
Keyword(s):  
Stress State ◽  
Ductile Fracture ◽  
Al Alloys

A Model of Pre-Strain Effects on Fracture Toughness

2001 ◽  
Vol 123 (4) ◽  
pp. 182-190 ◽  
Author(s):  
Andrew Cosham
Keyword(s):  
Fracture Toughness ◽  
Stress State ◽  
Ductile Fracture ◽  
Cleavage Fracture ◽  
Critical Strain ◽  
Experimental Studies ◽  
Local Approach ◽  
Stress Strain ◽  
Critical Fracture ◽  
Strained Material

A simple theoretical model for predicting the effect of tensile pre-strain on fracture toughness has been developed using the local approach. The HRR singularity is assumed to describe the stress-strain field around the crack tip. A stress-modified critical strain-controlled model is assumed to describe ductile fracture (and a critical stress-controlled model for cleavage fracture). The Rice and Tracey void growth model is used to characterize the variation of the critical strain with the stress state. The model further assumes that the fracture process does not change with increasing pre-strain. The effect of pre-strain is expressed in terms of an equation for the ratio of the fracture toughness of the pre-strained material to that of the virgin material. The model indicates that the effect of tensile pre-strain on fracture resistance can be characterized in terms of the effect of pre-strain on the stress-strain characteristics of the material, the critical fracture strain for a stress state corresponding to that during pre-strain, and several parameters that relate to the conditions for ductile fracture (or cleavage fracture). Previous experimental studies of the effect of pre-strain on toughness are summarized and compared with the predictions of the model.

The Initiation and Propagation of Ductile Fracture in Low Strength Steels

1976 ◽  
Vol 98 (1) ◽  
pp. 37-46 ◽  
Author(s):  
G. Green ◽  
J. F. Knott
Keyword(s):  
Ductile Fracture ◽  
Work Hardening ◽  
Inclusion Content ◽  
Initiation And Propagation ◽  
Ductile Fractures ◽  
Work Hardening Rate ◽  
Low Strength ◽  
The Difference

The effects of work hardening rate and inclusion content on the initiation and propagation of ductile fracture in low strength steels have been investigated. A model has been proposed based on these results, which describes the difference between the energy required for initiation and propagation of ductile fractures in such steels.

A modeling study of the effect of stress state on void linking during ductile fracture

1996 ◽  
Vol 44 (6) ◽  
pp. 2201-2210 ◽  
Author(s):  
A.B. Geltmacher ◽  
D.A. Koss ◽  
P. Matic ◽  
M.G. Stout
Keyword(s):  
Stress State ◽  
Ductile Fracture ◽  
Modeling Study
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