Round-robin analysis of the RILEM TC 162-TDF uni-axial tensile test: Part 2 - Fibre distribution

10.1617/13892 ◽  
2003 ◽  
Vol 36 (258) ◽  
pp. 275-280
Author(s):  
2003 ◽  
Vol 36 (4) ◽  
pp. 265-274 ◽  
Author(s):  
B. I. G. Barr ◽  
M. K. Lee ◽  
B. Barragán ◽  
D. Dupont ◽  
R. Gettu ◽  
...  

2003 ◽  
Vol 36 (4) ◽  
pp. 275-280 ◽  
Author(s):  
B. I. G. Barr ◽  
M. K. Lee ◽  
B. Barragán ◽  
D. Dupont ◽  
R. Gettu ◽  
...  

2003 ◽  
Vol 36 (9) ◽  
pp. 631-635 ◽  
Author(s):  
B. I. G. Barr ◽  
M. K. Lee ◽  
E. J. de Place Hansen ◽  
D. Dupont ◽  
E. Erdem ◽  
...  

Author(s):  
Stijn Hertelé ◽  
Timothy Galle ◽  
Koen Van Minnebruggen ◽  
Wim De Waele ◽  
Otto Jan Huising

Standard pipe corrosion assessments are based on simplifying assumptions with respect to corrosion geometry and focus on pressure based loading. Moreover, when corrosion patches traverse girth welds, validity criteria to their assessment become impractically vague. The integrity of girth welds is additionally influenced by axial stresses, which may act in combination with hoop stress resulting from pressure. In an attempt to address these issues, the authors conducted a detailed assessment on a significant, highly irregular corrosion patch traversing a 12″ natural gas pipeline girth weld. The investigation comprises a full scale uniaxial tensile test and supporting detailed finite element (FE) analyses. Hereby, the model mesh adopts detailed geometrical characteristics resulting from a surface profile scan obtained from stereoscopic digital image correlation. The numerical model is validated based on the uniaxial tensile test, in the sense that plastic collapse and highly complex strain distributions are successfully reproduced. Finally, the FE model is used to explore axial tensile failure in presence of internal pressure.


2003 ◽  
Vol 36 (9) ◽  
pp. 621-630 ◽  
Author(s):  
B. I. G. Barr ◽  
M. M. Lee ◽  
E. J. de Place Hansen ◽  
D. Dupont ◽  
E. Erdem ◽  
...  

2012 ◽  
Vol 560-561 ◽  
pp. 979-983
Author(s):  
Chang Jian Geng ◽  
Bao Lin Wu ◽  
Yan Dong Wang

Uni-axial tensile test was conducted at room temperature on a weak texture AZ31B magnesium alloy at different strain rate, from 2.8×10-5s-1 to 1.1×10-1s-1. The mechanical behavior was investigated. It was found that as strain rate is increased, flat character of the stress-strain curves can be found and {10-12} tension twinning is responsible for this phenomenon. The sample exhibites a brittle fracture at 1.1×10-1s-1 strain rate while exhibites a ductile fracture character at 2.8×10-5s-1 strain rate.


2007 ◽  
Vol 29-30 ◽  
pp. 87-90 ◽  
Author(s):  
Hyae Kyung Yi ◽  
Jung Hwan Lee ◽  
Young Seon Lee ◽  
Young Hoon Moon

Warm hydroformability and mechanical properties of pre- and post- heat treated Al6061 tubes were investigated in this study. For the investigation, as-extruded, fully annealed and T6- treated Al 6061 seamless tubes were prepared. To evaluate the hydroformability, uni-axial tensile test and free bulge test were performed at room temperature and 200ÓC. Also mechanical properties of hydroformed part at various pre- and post-heat treatments were evaluated by tensile test. The tensile test specimens were obtained from hexagonal shaped tube hydroformed at 200ÓC forming temperature. As a result, hydroformability of fully annealed tube is 25% higher than that of extruded tube. The tensile strength and elongation were more than 330MPa and 12%, respectively, when hydroformed part was T6 treated after warm hydroforming. However, hydroformed part using T6 pre treated tube represents low elongation, 8%. Therefore, the T6 treatment after hydroforming for as-extruded tube is proved to be the most cost-effective among various processing conditions.


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