Damage mechanical investigations at ductile fracture of free-cutting steels by means of microscopy - void growth and fracture surface topography

2001 ◽  
Vol 11 (PR5) ◽  
pp. Pr5-187-Pr5-193 ◽  
Author(s):  
R. Schiffmann ◽  
U. Wendt ◽  
W. Dahl
Keyword(s):  
Fracture Surface ◽  
Ductile Fracture ◽  
Surface Topography ◽  
Void Growth

A fractographic study exploring the fracture surface topography of S355J2 steel after pseudo-random bending-torsion fatigue tests

Measurement ◽  
2021 ◽  
Vol 178 ◽  
pp. 109443
Author(s):  
W. Macek ◽  
Z. Marciniak ◽  
R. Branco ◽  
D. Rozumek ◽  
G.M. Królczyk
Keyword(s):  
Fracture Surface ◽  
Surface Topography ◽  
Fatigue Tests ◽  
Fractographic Study

New Computational Procedures for Evaluation of Fracture Surfaces of the Drop Weight Tear Test of the Piping Steel

2011 ◽  
Author(s):  
Pavel Zˇidli´k ◽  
Petr Ferfecki ◽  
Bohumi´r Strnadel
Keyword(s):  
Fracture Surface ◽  
Ductile Fracture ◽  
Unstable Fracture ◽  
Fracture Surfaces ◽  
Drop Weight ◽  
Highly Sensitive ◽  
Drop Weight Tear Test ◽  
Computational Procedures ◽  
New Procedures

Drop weight tear test (DWTT) is one of the standard methods for evaluation of the ductility of large-dimensional structural components, such as pipelines used for gas and/or oil transportation. In general, the pipelines are even used in places with temperatures close to −40 °C, and in such environments, it is necessary to guarantee the resistance of the material used for pipeline against the initiation of unstable fracture. Currently, the percentage portion of the ductile fracture of the DWTT specimen is determined by an expert evaluator. The objective of this paper is to introduce new procedures working on the principle of deterministic, statistical and fractal description of the fracture surface. For the proposed computational procedures, the fracture surface of the test specimen is scanned at the macroscopic level using the 3D-Cam scanner. The newly investigated procedures show highly sensitive to the determination of the percentage portion of the ductile fracture on the tested DWTT specimens. The developed procedures to assess the fracture surfaces of the DWTT specimens contributes to making the results of this test more correct, objective and also increases the reliability and safety of the manufactured pipelines.

FRACTURE SURFACE TOPOGRAPHY OF CAST TNT

1992 ◽  
pp. 575-578
Author(s):  
M.Y.D. LANZEROTTI ◽  
J.J. PINTO ◽  
A. WOLFE
Keyword(s):  
Fracture Surface ◽  
Surface Topography
Sign in / Sign up

Export Citation Format

Share Document