Assessment of brittle fracture for cast steel connections in braced frames

2012 ◽  
pp. 323-330
Author(s):  
T Iwashita ◽  
J Packer ◽  
J de Oliveira
Keyword(s):  
Brittle Fracture ◽  
Cast Steel ◽  
Braced Frames ◽  
Steel Connections

Defect Tolerance for Cast Steel Connections in Braced Frames

2012 ◽  
Vol 138 (12) ◽  
pp. 1455-1464 ◽  
Author(s):  
Tsutomu Iwashita ◽  
Jeffrey A. Packer ◽  
Juan-Carlos de Oliveira
Keyword(s):  
Cast Steel ◽  
Defect Tolerance ◽  
Braced Frames ◽  
Steel Connections

Cast Steel Replaceable Modular Links for Eccentrically Braced Frames

2017 ◽  
Author(s):  
J. Binder ◽  
M. Gray ◽  
C. Christopoulos ◽  
C. de Oliveira
Keyword(s):  
Cast Steel ◽  
Braced Frames ◽  
Eccentrically Braced Frames

Resistance of cast steel to brittle fracture

1974 ◽  
Vol 6 (11) ◽  
pp. 1308-1310 ◽  
Author(s):  
V. V. Panasyuk ◽  
Yu. A. Shul'te ◽  
S. E. Kovchik ◽  
I. P. Volchok ◽  
N. S. Kogut ◽  
...  
Keyword(s):  
Brittle Fracture ◽  
Cast Steel

Notch Effects on Impact and Bending Characteristics of Spheroidal Graphite and Compacted Vermicular Graphite Cast Irons with Various Matrices

2010 ◽  
Vol 457 ◽  
pp. 392-397 ◽  
Author(s):  
Tohru Nobuki ◽  
Minoru Hatate ◽  
Toshio Shiota
Keyword(s):  
Cast Iron ◽  
Transition Temperature ◽  
Brittle Fracture ◽  
Cast Steel ◽  
Charpy Impact ◽  
Spheroidal Graphite ◽  
Buffer Effect ◽  
Cast Irons ◽  
Type Specimens ◽  
The Impact

The object of this study is to find out and evaluate systematically how the basic factors such as graphite-shape, external notch and matrix-characteristic affect the impact and bending characteristics of cast irons. The Spheroidal Graphite (SG) and Compacted Vermicular graphite (CV) cast iron samples were prepared, and their matrixes were modified into ferritic, pearlitic and bainitic in order to make the various kinds of samples whose graphite-shape and matrix vary widely. From each sample we produced five kinds of Charpy-type specimens by adding five kinds of notches whose stress concentration factor (α) varied from 1.0 (un-notched) to 4.8. The Charpy impact value decreases greatly in the range of α from 1 to 2.3 but decreases slightly in the range of α larger than 2.3. No influence to the fracture energy in the range of α larger than 2.3. Increasing of α results in moderate elevation of transition temperature of Charpy impact value and the transition temperature of CV cast ion is lower than that of SG one. The impact value in brittle fracture region of the cast iron samples were recognized to be a little bit larger than that of cast steel sample, and it was considered to be caused by graphite which act as a kind of buffer effect against crack growth in brittle fracture.

scholarly journals Investigation on brittle fracture mechanism of a grade E cast steel knuckle

2014 ◽  
Vol 2 (1) ◽  
pp. 15-24 ◽  
Author(s):  
Jin Huang ◽  
Lu Xia ◽  
Youshou Zhang ◽  
Sinian Li
Keyword(s):  
Brittle Fracture ◽  
Fracture Mechanism ◽  
Cast Steel

scholarly journals Seismic Design of Bolted Connections in Steel Structures—A Critical Assessment of Practice and Research

Buildings ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 32
Author(s):  
Tiago Ribeiro ◽  
Luís Bernardo ◽  
Ricardo Carrazedo ◽  
Dario De Domenico
Keyword(s):  
Earthquake Engineering ◽  
System Analysis ◽  
Steel Structures ◽  
Design Codes ◽  
Braced Frames ◽  
Structural Behaviour ◽  
Design Rules ◽  
Steel Connections ◽  
The Cost ◽  
Local Connection

The importance of connections in steel structures is paramount, not only because it greatly influences the cost of construction and provides room for innovations, but also due to the connections’ impact on global structural behaviour. Therefore, research into innovative connections for seismic applications and related design criteria has significantly grown in recent years. However, it has been pursued mostly on local—connection or frame—levels, leaving the system analysis and code compliance levels with a meagre investigation. Moreover, less than 1% of published papers concerning steel connections and earthquake engineering are review articles. To overcome this gap, this systematic review of more than 240 references, including scientific contributions and design codes in the field aimed to cover both recent research and current shortcomings in practice and regulations. It has been found that European design rules updated to a fully performance-based design philosophy is imminent and is deemed to bring pre-qualified joints and increased complexity. Design rules have been systematized, and current hindrances have been highlighted. A deeper look into research needs and trends showed that investigations in connections for concentrically X braced frames are still a necessity, while developments in self-centring and replaceable connections as well as in simple solutions for increasing damping are expected to modify how joints are designed, as soon as semi-rigid and partial strength connections are more easily allowed by design codes.

Determination of tendency of cast steel toward brittle fracture

1978 ◽  
Vol 14 (1) ◽  
pp. 35-39
Author(s):  
I. P. Volchok ◽  
S. E. Kovchik ◽  
M. N. Zima
Keyword(s):  
Brittle Fracture ◽  
Cast Steel
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