Fracture analysis on U-bending of AA6061 aluminum alloy sheet using phenomenological ductile fracture criteria

2020 ◽  
Vol 148 ◽  
pp. 106566 ◽  
Author(s):  
Hossein Talebi-Ghadikolaee ◽  
Hassan Moslemi Naeini ◽  
Mohammad Javad Mirnia ◽  
Mohammad Ali Mirzai ◽  
Hamid Gorji ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Ductile Fracture ◽  
Fracture Analysis ◽  
Alloy Sheet ◽  
Aluminum Alloy Sheet ◽  
Fracture Criteria ◽  
Ductile Fracture Criteria

scholarly journals Forming Limit Research of 5182 Aluminum Alloy Sheet Based on Lou-2013 Ductile Fracture Criterion

2019 ◽  
Vol 55 (16) ◽  
pp. 47 ◽  
Author(s):  
YANG Zhuoyun ◽  
ZHAO Changcai ◽  
DONG Guojiang ◽  
CHEN Guang ◽  
ZHU Liangjin ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Ductile Fracture ◽  
Fracture Criterion ◽  
Alloy Sheet ◽  
Forming Limit ◽  
Aluminum Alloy Sheet ◽  
Ductile Fracture Criterion

The Evaluation of Ductile Fracture Criteria (DFC) of 6061-T6 Aluminum Alloy

2010 ◽  
Vol 44-47 ◽  
pp. 2837-2841 ◽  
Author(s):  
Ying Tong
Keyword(s):  
Aluminum Alloy ◽  
Ductile Fracture ◽  
Metal Forming ◽  
True Strain ◽  
Mutual Support ◽  
Fracture Criteria ◽  
Forming Process ◽  
Forming Simulation ◽  
Ductile Fracture Criteria ◽  
Metal Forming Process

As one of the principal failures, ductile fracturing restricts metal forming process. Cockcroft-Latham fracture criterion is suited for tenacity fracture in bulk metal-forming simulation. An innovative approach involving physical compression experiments, numerical simulations and mathematic computations provides mutual support to evaluate ductile damage cumulating process and ductile fracture criteria (DFC). The results show that the maximum cumulated damage decreases with strain rate rising, and the incremental ratios, that is damage sensitive rate, vary uniformly during the upsetting processes at different strain rates. The damage sensitive rate decreases rapidly, then it becomes stability in a constant 0.11 after true strain -0.85. The true strain -0.85 was assumed as the fracture strain, and the DFC of 6061-T6 aluminum alloy is almost a constant 0.2. According to DFC, the exact fracture moment and position during various forming processes will be predicted conveniently.

Failure Prediction in Stretched Sheets of Aluminium 2024-T3

2006 ◽  
Vol 526 ◽  
pp. 91-96 ◽  
Author(s):  
C. Vallellano ◽  
C. Guzman ◽  
J. Garcia Lomas
Keyword(s):  
Hydrostatic Pressure ◽  
Ductile Fracture ◽  
Aluminium Alloy ◽  
Normal Stress ◽  
Failure Prediction ◽  
Alloy Sheet ◽  
Experimental Results ◽  
Fracture Plane ◽  
Fracture Criteria ◽  
Ductile Fracture Criteria

The present work analyses experimentally and numerically the failure limit of a 2024-T3 aluminium alloy sheet subjected to stretching. The capability of a number of ductile fracture criteria to predict sheet failure is examined and compared with experimental results. The influence of the hydrostatic pressure in the Freudenthal’s, the Cockcroft and Latham’s and the Bressan and Williams’ criterion is analyzed. The effect of the normal stress on the fracture plane in the Bressan and Williams’ criterion is also discussed.

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