scholarly journals Three-dimensional observation of ductile fracture process by deflection contrast imaging in cast Al–7%Si alloys

2008 ◽  
Vol 58 (2) ◽  
pp. 58-64 ◽  
Author(s):  
Tatsumasa Hidaka ◽  
Hiroyuki Toda ◽  
Masakazu Kobayashi ◽  
Kentaro Uesugi ◽  
Toshiro Kobayashi
Keyword(s):  
Ductile Fracture ◽  
Fracture Process ◽  
Three Dimensional ◽  
Contrast Imaging ◽  
Ductile Fracture Process

scholarly journals Micromechanical modelling of ductile fracture – local approach

10.30544/459 ◽  
2020 ◽  
Vol 25 (04) ◽  
pp. 263-286
Author(s):  
Aleksandar S Sedmak ◽  
Marko Rakin ◽  
Bojan Medjo ◽  
Bashir Younise
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Crack Initiation ◽  
Ductile Fracture ◽  
Fracture Process ◽  
Three Dimensional ◽  
High Strength ◽  
Local Approach ◽  
Micromechanical Modelling ◽  
Ductile Fracture Process

Micromechanical modelling of ductile fracture by using the local approach has been presented as the review of previously obtained results for welded joints made of low alloyed high strength steel. Experimental work was performed on 3PB specimens and tensile panels, which were then modelled by finite element method, using two- and three-dimensional meshes, respectively. The local approach was used to simulate both for crack initiation and growth during ductile fracture process.

Interaction Effect Evaluation of Plural Surface Cracks in Ductile Fracture Process

2012 ◽  
Author(s):  
Kazuhiro Suga ◽  
Katsumasa Miyazaki ◽  
Ryotaro Senda ◽  
Masanori Kikuchi
Keyword(s):  
Ductile Fracture ◽  
Fracture Process ◽  
Crack Depth ◽  
Maximum Load ◽  
Crack Penetration ◽  
Crack Problems ◽  
Average Crack ◽  
Fracture Processes ◽  
Ductile Fracture Process ◽  
Effect Of Surface

Effect of surface flaw on ductile fracture behavior of non-aligned multiple flaws in plate is studied numerically using Gurson’s constitutive equation. Based on experiments, two parallel non-aligned crack problems are simulated. From experimental and simulation data, crack coalescence, interaction between two cracks and crack penetration was observed. In all cases, ductile fracture processes are obtained and results are compared with experimental ones. Fracture patterns agree well with experimental results. Close qualitative match was obtained by comparing each load displacement curves that are normalized by maximum load. It shows that the mechanism of ductile fracture process is properly captured. By selecting one normalized experimental data as a base setup, maximum load from related simulation results can be predicted. Aligned rules are checked based on these simulations, and H / a criteria verified it’s availability when average crack depth is used as crack depth.

scholarly journals Numerical Study for Ductile Fracture Process of Through Cracks of Different Lengths

2011 ◽  
Vol 77 (782) ◽  
pp. 1603-1612 ◽  
Author(s):  
Kazuhiro SUGA ◽  
Masanori KIKUCHI ◽  
Yohei ARAI ◽  
Shota KAWASAKI
Keyword(s):  
Ductile Fracture ◽  
Fracture Process ◽  
Numerical Study ◽  
Ductile Fracture Process
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