Ductile-to-brittle transition in fracture behaviors of common solder alloys over a temperature range down to -150 ºC

2021 ◽  
pp. 102962
Author(s):  
Qi An ◽  
Rong An ◽  
Chunqing Wang ◽  
Hong Wang
Keyword(s):  
Solder Alloys ◽  
Temperature Range ◽  
Brittle Transition ◽  
Fracture Behaviors ◽  
Ductile To Brittle Transition

Fracture Toughness of Hardox-400 Steel at the Ductile-to-Brittle Transition Temperature Range − The Influence of the In-Plane Constraint

2014 ◽  
Vol 224 ◽  
pp. 167-172 ◽  
Author(s):  
Andrzej Neimitz ◽  
Tadeusz Pala ◽  
Ihor Dzioba
Keyword(s):  
Fracture Toughness ◽  
Transition Temperature ◽  
Stress Field ◽  
Critical Values ◽  
Structural Elements ◽  
Engineering Applications ◽  
Temperature Range ◽  
Brittle Transition ◽  
Brittle Transition Temperature ◽  
Ductile To Brittle Transition

Fracture toughness is a structural elements property. Critical values of the J - integral, JIC measured according to the standards requirements, when transferred to engineering applications can lead to a significant conservatism in assessing integrity of a structure. In the article the formulae to estimate the fracture toughness taking into account the in-plane constraint in elements are proposed. These formulae are based on the analysis of the stress field in front of the crack proposed by Hutchinson, Rice and Rosengren (HRR), and O'Dowd's, Shih's modifications of HRR field, as well as the analysis of the stress field in front of the crack, computed numerically.

scholarly journals The nucleation of the Izmit and Düzce earthquakes: Some mechanical logic on where and how ruptures began

2021 ◽  
Author(s):  
Michel Bouchon ◽  
Hayrullah Karabulut ◽  
Mustafa Aktar ◽  
Serdar Özalaybey ◽  
Jean Schmittbuhl ◽  
...  
Keyword(s):  
Strike Slip ◽  
Seismic Events ◽  
Fault Geometry ◽  
Brittle Transition ◽  
The North ◽  
Impending Rupture ◽  
Natural Tendency ◽  
Ductile To Brittle Transition ◽  
Mechanical Logic ◽  
Rupture Speed

Summary In spite of growing evidence that many earthquakes are preceded by increased seismic activity, the nature of this activity is still poorly understood. Is it the result of a mostly random process related to the natural tendency of seismic events to cluster in time and space, in which case there is little hope to ever predict earthquakes? Or is it the sign that a physical process that will lead to the impending rupture has begun, in which case we should attempt to identify this process. With this aim we take a further look at the nucleation of two of the best recorded and documented strike-slip earthquakes to date, the 1999 Izmit and Düzce earthquakes which ruptured the North Anatolian Fault over ∼200 km. We show the existence of a remarkable mechanical logic linking together nucleation characteristics, stress loading, fault geometry and rupture speed. In both earthquakes the observations point to slow aseismic slip occurring near the ductile-to-brittle transition zone as the motor of their nucleation.

scholarly journals Probing the Statistical Validity of the Ductile-to-Brittle Transition in Metallic Nanowires Using GPU Computing

2013 ◽  
Vol 9 (12) ◽  
pp. 5558-5566 ◽  
Author(s):  
William R. French ◽  
Amulya K. Pervaje ◽  
Andrew P. Santos ◽  
Christopher R. Iacovella ◽  
Peter T. Cummings
Keyword(s):  
Gpu Computing ◽  
Metallic Nanowires ◽  
Brittle Transition ◽  
Statistical Validity ◽  
Ductile To Brittle Transition

scholarly journals Fracture and Ductile-to-Brittle Transition Characteristics of Molybdenum by Impact and Static Bend Tests

1995 ◽  
Vol 36 (4) ◽  
pp. 504-510 ◽  
Author(s):  
Yutaka Hiraoka ◽  
Hiroaki Kurishita ◽  
Minoru Narui ◽  
Hideo Kayano
Keyword(s):  
Brittle Transition ◽  
Bend Tests ◽  
Ductile To Brittle Transition
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