scholarly journals Simulation of manufacturing induced fiber clustering and matrix voids and their effect on transverse crack formation in unidirectional composites

2019 ◽  
Vol 127 ◽  
pp. 105620 ◽  
Author(s):  
Aswathi Sudhir ◽  
Ramesh Talreja
Keyword(s):  
Transverse Crack ◽  
Crack Formation ◽  
Unidirectional Composites ◽  
Fiber Clustering

Simulation of transverse crack formation on continuously cast peritectic medium carbon steel slabs

1999 ◽  
Vol 70 (10) ◽  
pp. 412-419 ◽  
Author(s):  
Mikio Suzuki ◽  
Hiroshi Hayashi ◽  
Hiroyuki Shibata ◽  
Toshihiko Emi ◽  
In-Jae Lee
Keyword(s):  
Carbon Steel ◽  
Transverse Crack ◽  
Crack Formation ◽  
Medium Carbon Steel ◽  
Medium Carbon ◽  
Continuously Cast ◽  
Steel Slabs

Study of Transverse Crack Formation of a Nb-Peritectic Steel

2012 ◽  
Vol 706-709 ◽  
pp. 1466-1473
Author(s):  
S. Nafisi ◽  
L. Collins ◽  
E.S. Szekeres
Keyword(s):  
Transverse Crack ◽  
Crack Formation ◽  
Cast Steel ◽  
Infrared Camera ◽  
Temperature History ◽  
Hot Ductility ◽  
Peritectic Steel ◽  
Ductility Trough ◽  
Continuously Cast ◽  
Crack Susceptibility

The problem of transverse crack formation in continuously cast steel has been an issue for over 30 years. The crack susceptibility depends not only to the steel composition, but also to the temperature history during casting. To improve the surface quality, two key solutions have been suggested; adjusting the straightening stage to an appropriate temperature range, out of hot ductility trough, and/or alloy modification. These solutions have certain limitations and difficulties still exist for grades such as peritectic steels containing Nb or V. In this article, the hot ductility of a peritectic steel grade with Nb has been studied under direct cast conditions. This was performed using a Gleeble 3800 thermo-mechanical simulator under two critical strain rates. In addition, the transverse crack formation and appearance, as well as the application of infrared camera to study the surface temperature profile of the slabs is presented.

Estimation of the severity of damage produced by a transverse crack

2020 ◽  
Vol 65 (1) ◽  
pp. 137-144
Author(s):  
Marius-Vasile Pop
Keyword(s):  
Transverse Crack ◽  
Bending Moment ◽  
Cantilever Beams ◽  
Trend Line ◽  
The Real ◽  
Symmetrical Deformation ◽  
Frequency Drop ◽  
Equidistant Points ◽  
Fixed End ◽  
Crack Position

This paper presents a method to find the severity of a crack for cantilever beams that can be used to estimate the frequency drop due to the crack. The severity is found for the crack located at the location where the biggest curvature (or bending moment) is achieved. Because the fixing condition does not permit a symmetrical deformation around the crack, the apparent severity is smaller as the real one. The latter is found by the estimated value of the trend-line at the fixed end, it being constructed on points that consider the crack position (equidistant points in the proximity of the fixed end) and the resulted deflections.

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