The stainless steel structure of a sport stadium in Quart

2002 ◽  
pp. 1: 547-556 ◽  
Author(s):  
Luis Sanchez Cuenca
2008 ◽  
Vol 385-387 ◽  
pp. 413-416
Author(s):  
Hong Li ◽  
Hui Long Ren

Welding residual plastic strains and residual stresses are the product of complicated nonlinear behaviors of the structures during welding. The residual strains and stresses for stiffened stainless steel structure and welding fatigue analysis are studied in this paper. The three-dimensional transient temperature field is analyzed by FEM first. Doing the welding experiment for fundamental model is to verify the numerical results, the infrared thermograph is used to follow and record the whole process. The results of FEM are supported by experimental data. Then, the elastic-plastic-model is established to analyze the residual strains and stresses. Based on the stresses, loading and fatigue factors, according to Miner fatigue damage law, some fatigue behaviors such as fatigue life and remaining life are obtained.


Vacuum ◽  
2001 ◽  
Vol 63 (4) ◽  
pp. 483-486 ◽  
Author(s):  
A.D Pogrebnjak ◽  
A.G Lebed ◽  
Yu.F Ivanov

Author(s):  
Yasuo Kurozumi

It is well known that ultrasonic waves are affected strongly by macro-structures in cast stainless steel, as in the primary pipe or other components in pressurized water reactors (PWRs). In this work, ultrasonic refractive angles and defect detection sensitivities are investigated at different incident angles to cast stainless steel. The aims of the investigation are to clarify the transmission of ultrasonic waves in cast stainless steel and to contribute to the transducer design. The results are that ultrasonic refractive angles in cast stainless steel shift towards the 45-degree direction with respect to the direction of dendritic structures by 11.8 degrees at the maximum and that the sensitivity of transducer for inner surface breaking cracks increases with decreasing incident angle. However, in an ultrasonic inspection of actual welds at smaller incident angles, a trade-off occurs between increased defect detection sensitivity and decreased defect discrimination capability due to intense false signals produced by non-defective features.


2003 ◽  
Vol 125 (1) ◽  
pp. 87-94 ◽  
Author(s):  
Bernhard Hoffschmidt ◽  
Fe´lix M. Te´llez ◽  
Antonio Valverde ◽  
Jesu´s Ferna´ndez ◽  
Valerio Ferna´ndez

The High Temperature Receiver (HitTRec) consists of a modular ceramic absorber, a supporting structure and an air-return system. It has been designed to prevent possible flow instability at 700-800°C average outlet air temperature with atmospheric pressure. The HiTRec-II prototype was developed to solve the structural problems of the first prototype (HiTRec-I). Testing in the Plataforma Solar de Almerı´a (PSA) test bed lasted from November 2000 through May 2001, accumulating 150 test hours under concentrated sun. Results demonstrated the durability of the modified stainless-steel structure. Inlet aperture flux was up to 900kW/m2 and average outlet air temperatures of up to 840°C with peak outlet air temperatures of up to 950°C. Thermal efficiency under steady-state conditions was 76±7% at 700°C, nominal conditions for a PHOEBUS-type volumetric receiver. Other performance characteristics were also evaluated (e.g., Air Return Ratio of 46% and characteristic receiver response time of 70 s).


2007 ◽  
Vol 41 (11) ◽  
pp. 2449-2456 ◽  
Author(s):  
K LECORRE ◽  
E VALSAMIJONES ◽  
P HOBBS ◽  
B JEFFERSON ◽  
S PARSONS

1990 ◽  
Vol 13 (1) ◽  
pp. 45-52 ◽  
Author(s):  
Kenneth L. Wrisley ◽  
David J. Duquette ◽  
Don Steiner ◽  
Elaine F. Motyka ◽  
Eric D. Coomer

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