scholarly journals Numerical Analysis of Influence of Hydrogen Charging Method on Thermal Desorption Spectra for Pre-strained High-Strength Steel

2014 ◽  
Vol 54 (1) ◽  
pp. 153-159 ◽  
Author(s):  
Ken-ichi Ebihara ◽  
Takashi Iwamoto ◽  
Yukio Matsubara ◽  
Hiroki Yamada ◽  
Tsukasa Okamura ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Thermal Desorption ◽  
High Strength Steel ◽  
High Strength ◽  
Hydrogen Charging

Q690 high strength steel T-stub tensile behavior: Experimental and numerical analysis

2018 ◽  
Vol 122 ◽  
pp. 554-571 ◽  
Author(s):  
Gang Liang ◽  
Hongchao Guo ◽  
Yunhe Liu ◽  
YanLong Li
Keyword(s):  
Numerical Analysis ◽  
High Strength Steel ◽  
High Strength ◽  
Tensile Behavior

Hydrogen Charging of High Strength Steel Specimens and Physical Simulation of Cold Cracking under Laser Beam Welding Conditions

2012 ◽  
Vol 706-709 ◽  
pp. 1391-1396
Author(s):  
Ossama Dreibati ◽  
R. Ossenbrink ◽  
Vesselin Michailov
Keyword(s):  
Laser Beam ◽  
High Strength Steel ◽  
Physical Simulation ◽  
Laser Beam Welding ◽  
High Strength ◽  
Cold Cracking ◽  
Tension Stress ◽  
Pure Hydrogen ◽  
Diffusible Hydrogen ◽  
Hydrogen Charging

Cold cracks occur during the cooling down of welded joint at low temperatures or later at room temperature after the end of welding. It is associated with the formation of brittle microstructures as martensite in the presence of diffusible hydrogen as well as of tension stresses. By using an enhanced Simulation-und Testing Center Gleeble 3500, a procedure for physical simulation of cold cracking under laser beam welding conditions is suggested. The approach reproduces combinations of the cold crack main parameters, a brittle microstructure, tension stress and high local hydrogen concentration under welding conditions which induce a cold crack. A specimen geometry and technique were developed to enable the gaseous hydrogen charging from pure hydrogen atmosphere. The amount of charged hydrogen can be adjusted through varying the charging parameters like temperature, gas pressure and charging time. The hydrogen charging technique and the cold crack testing procedure were proven with high strength steel specimens.

Experimental and Numerical Analysis on Full High Strength Steel Extended Endplate Connections in Fire

2018 ◽  
Vol 18 (4) ◽  
pp. 1350-1362 ◽  
Author(s):  
Xuhong Qiang ◽  
Nianduo Wu ◽  
Xu Jiang ◽  
Yongfeng Luo ◽  
Frans Bijlaard
Keyword(s):  
Numerical Analysis ◽  
High Strength Steel ◽  
High Strength ◽  
Endplate Connections ◽  
In Fire
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