Experimental investigation on static and fatigue behavior of welded sm490a steel under low temperature

2009 ◽  
Vol 9 (1) ◽  
pp. 85-91 ◽  
Author(s):  
Ki-Weon Kang ◽  
Byeong-Choon Goo ◽  
Jae-Hoon Kim ◽  
Doo-Kie Kim ◽  
Jung-Kyu Kim
Keyword(s):  
Experimental Investigation ◽  
Low Temperature ◽  
Fatigue Behavior

Experimental investigation and modelling of a low temperature PCM thermal energy exchange and storage system

2014 ◽  
Vol 83 ◽  
pp. 96-107 ◽  
Author(s):  
Fabien Rouault ◽  
Denis Bruneau ◽  
Patrick Sébastian ◽  
Jérôme Lopez
Keyword(s):  
Experimental Investigation ◽  
Low Temperature ◽  
Thermal Energy ◽  
Energy Exchange ◽  
Storage System ◽  
And Storage

Fatigue Behavior of Butt Weld Seams: Experimental Investigation and Numerical Simulation

2014 ◽  
Author(s):  
Kay Langschwager ◽  
Alexander Bosch ◽  
Eliane Lang ◽  
Jürgen Rudolph ◽  
Michael Vormwald ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Experimental Investigation ◽  
Fatigue Behavior ◽  
Special Focus ◽  
Fatigue Lifetime ◽  
Ongoing Research ◽  
Butt Weld ◽  
Welded Structures ◽  
Factors Of Influence ◽  
Weld Seams

Austenitic stainless steel of type X6CrNiNb18-10 (1.4550) is a widely used material in piping and components of nuclear power plants. The fatigue behavior of these components is often operationally determined by thermomechanical strains and corresponding stresses. Welded structures lead to complex stresses in the component and potential fatigue lifetime reductions. Various geometrical and microstructural inhomogeneities in welded structures represent the main factors of influence. Nevertheless, clear identification and quantification of various factors of influence are issues still to be resolved. Within the framework of an ongoing research project, the experimental investigation comprises uniaxial and biaxial fatigue experiments on welded joints which cover temperatures from 25°C to 350°C. Furthermore, a key issue deals with the thermomechanical fatigue behavior of machined and unmachined butt weld seams. A special focus is set on typical low cycle fatigue (LCF) tests in order to explain the behavior of the base material and the weld material to identify the influence of microstructural inhomogeneities. In addition, specimens manufactured directly from the pipe components are tested to examine the influence of the butt weld seam geometry. For a better understanding of the local strain effects, optical strain field measurements (OSFM) are conducted and used to validate numerical simulation. The finite element method (FEM) is utilized to expand the parameter space and identify the main parameters. Experimental and numerical results show that fatigue failure occurs either in the base metal in the vicinity of the welded zone or in the top layer of the weld, depending on the loading conditions. This knowledge is used to develop an approach to fatigue lifetime estimation.

Experimental investigation of the effects of low-temperature phase change material on single-slope solar still

Desalination ◽  
2021 ◽  
Vol 499 ◽  
pp. 114799
Author(s):  
Maryam Jahanpanah ◽  
Seyyed Javad Sadatinejad ◽  
Alibakhsh Kasaeian ◽  
Mohammad Hossein Jahangir ◽  
Hamid Sarrafha
Keyword(s):  
Experimental Investigation ◽  
Low Temperature ◽  
Phase Change ◽  
Phase Change Material ◽  
Temperature Phase ◽  
Solar Still ◽  
Change Material ◽  
Low Temperature Phase

scholarly journals Experimental investigation of dry ice cyclone separator for ultra‐low temperature energy storage using carbon dioxide

2020 ◽  
Vol 2 (4) ◽  
Author(s):  
Haruhiko Yamasaki ◽  
Önder Kizilkan ◽  
Hiroshi Yamaguchi ◽  
Takeshi Kamimura ◽  
Kazuhiro Hattori ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Experimental Investigation ◽  
Energy Storage ◽  
Low Temperature ◽  
Cyclone Separator ◽  
Dry Ice
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