scholarly journals Irradiation effects test series, test IE-5. Test results report. [PWR]

1978 ◽  
Author(s):  
D. W. Croucher ◽  
T. R. Yackle ◽  
C. M. Allison ◽  
S. A. Ploger
Keyword(s):  
Test Series ◽  
Test Results ◽  
Irradiation Effects

scholarly journals Irradiation Effects Test Series: Test IE-3. Test results report. [PWR]

1977 ◽  
Author(s):  
L. C. Farrar ◽  
C. M. Allison ◽  
D. W. Croucher ◽  
S. A. Ploger
Keyword(s):  
Test Series ◽  
Test Results ◽  
Irradiation Effects

scholarly journals Irradiation Effects Test Series: Test IE-2. Test results report. [PWR]

1977 ◽  
Author(s):  
C. M. Allison ◽  
D. W. Croucher ◽  
S. A. Ploger ◽  
A. S. Mehner
Keyword(s):  
Test Series ◽  
Test Results ◽  
Irradiation Effects

scholarly journals Irradiation effects test series test IE-1 test results report. [PWR]

1977 ◽  
Author(s):  
W. J. Quapp ◽  
C. M. Allison ◽  
L. C. Farrar ◽  
A. S. Mehner
Keyword(s):  
Test Series ◽  
Test Results ◽  
Irradiation Effects

scholarly journals Irradiation effects test Series Scoping Test 1: test results report. [PWR]

1977 ◽  
Author(s):  
W. J. Quapp ◽  
C. M. Allison ◽  
L. C. Farrar
Keyword(s):  
Test Series ◽  
Test Results ◽  
Irradiation Effects

scholarly journals Power-cooling mismatch test series. Test PCM-2A; test results report. [PWR]

1976 ◽  
Author(s):  
G. Cawood ◽  
G. Holman ◽  
Z. Martinson ◽  
B. Legrand
Keyword(s):  
Test Series ◽  
Test Results

Comparison Between ASME Code-Case N-761, NUREG/CR-6909 and Stainless Steel Component Fatigue Test Results

2014 ◽  
Author(s):  
H. T. Harrison ◽  
Robert Gurdal
Keyword(s):  
Stainless Steel ◽  
Fatigue Test ◽  
Fatigue Tests ◽  
Test Series ◽  
Test Results ◽  
Actual Number ◽  
Steel Component ◽  
Class 1 ◽  
Asme Code ◽  
Number Of Cycles

For Class 1 components, the consideration of the environmental effects on fatigue has been suggested to be evaluated through two different methodologies: either NUREG/CR-6909 from March 2007 or ASME-Code Case N-761 from August 2010. The purpose of this technical paper is to compare these two methods. In addition, the equations from Revision 1 of the NUREG/CR-6909 will be evaluated. For these comparisons, two stainless steel component fatigue test series with documented results are considered. These two fatigue test series are completely different from each other (applied cyclic displacements vs. insurge/outsurge types of transients). Therefore, they are producing an appropriate foundation for these comparisons. In general, the severities of the two methods are compared, where the severity is defined as the actual number of cycles from the fatigue tests, including an evaluation of the scatter, divided by the number of design cycles from the two methods. Also, how stable the methods are is being evaluated through the calculation of the coefficient of variation for each method.

The Fatigue Behavior of Steel Structures under Random Loading

2008 ◽  
Vol 378-379 ◽  
pp. 3-16
Author(s):  
Henning Agerskov
Keyword(s):  
Fracture Mechanics ◽  
Fatigue Test ◽  
Steel Structures ◽  
Fatigue Tests ◽  
Test Series ◽  
Test Results ◽  
Random Loading ◽  
Mechanics Analysis ◽  
Miner’S Rule ◽  
Miner's Rule

Fatigue damage accumulation in steel structures under random loading has been studied in a number of investigations at the Technical University of Denmark. The fatigue life of welded joints has been determined both experimentally and from a fracture mechanics analysis. In the experimental part of the investigation, fatigue test series with a total of 540 fatigue tests have been carried through on various types of welded plate test specimens and full-scale offshore tubular joints. The materials that have been used are either conventional structural steel or high-strength steel. The fatigue tests and the fracture mechanics analyses have been carried out using load histories, which are realistic in relation to the types of structures studied, i.e. primarily bridges, offshore structures and chimneys. In general, the test series carried through show a significant difference between constant amplitude and variable amplitude fatigue test results. Both the fracture mechanics analysis and the fatigue test results indicate that Miner’s rule, which is normally used in the design against fatigue in steel structures, may give results, which are unconservative, and that the validity of the results obtained from Miner’s rule will depend on the distribution of the load history in tension and compression.

scholarly journals Seismic Capacity Test of Overhead Crane Under Horizontal and Vertical Excitation -Element Model Test Results on Nonlinear Response Behavior-

2010 ◽  
Vol 5 (4) ◽  
pp. 369-377 ◽  
Author(s):  
Kenichi Suzuki ◽  
◽  
Masakatsu Inagaki ◽  
Tadashi Iijima ◽  
Keyword(s):  
Model Test ◽  
Nuclear Power ◽  
Structural Strength ◽  
Nonlinear Behavior ◽  
Element Model ◽  
Test Series ◽  
Overhead Crane ◽  
Test Results ◽  
Seismic Capacity ◽  
Vertical Excitation

In seismic safety assessments of nuclear power plants, it is important to determine the seismic capacity in terms of the structural strength and operative function of equipment. Since the revised regulatory guidelines for reviewing the seismic design of nuclear power reactor facilities in Japan requires dynamic analysis for vertical excitation, it is important to confirm the seismic capacity of equipment under vertical excitation. An overhead crane used in a boiling-water nuclear reactor building is a typical piece of equipment with low rigidity that is affected by vertical response amplification. A strong earthquake might cause nonlinear behavior such as sliding, or jumping and the resulting landing of the overhead crane, which may result in its derailing from the track. Accordingly, the Japan Nuclear Energy Safety Organization initiated a seismic capacity test program in Fiscal 2006. The program included two test series for investigating nonlinear behavior, structural strength, and validity of the structural retrofit against vertical excitation. The first test series was a preliminary element model test for investigating basic features, and focused on certain issues concerning nonlinear behavior under vertical excitation. The second test series was a shake table test of a 1/2.5-scale model with the same structure as an actual crane. This paper reports the test results obtained from the former element model test. We clarified the nonlinear behavior of an overhead crane under vertical excitation.

scholarly journals The influence of decorative surface of commercial particleboards on the formaldehyde release measured by flask method

2018 ◽  
pp. 137-142
Author(s):  
Mladjan Popovic ◽  
Tijana Todorovic ◽  
Milanka Djiporovic-Momcilovic ◽  
Ivana Gavrilovic-Grmusa ◽  
Jasmina Popovic
Keyword(s):  
Formaldehyde Emission ◽  
The Other ◽  
Test Series ◽  
Test Results ◽  
Formaldehyde Content ◽  
Formaldehyde Release ◽  
Very High

The formaldehyde release and the formaldehyde content from the commercial particleboards were determined using the flask and perforator methods. Since the melamine faced boards were used in this research, the flask method was applied to evaluate how much the decorative surface (melamine impregnated paper) affects the test results in terms of reducing the formaldehyde emission from the samples. Hence, the flask method tests were performed simultaneously with one test series presenting the melamine faced samples, and the other one presenting the samples with sanded surface. Also, the decorative surface was sanded off from all of the test samples intended for formaldehyde content measurements using perforator method. During this research, it was found that by removing the decorative surface, the formaldehyde emission increased in the range from 12.6% to 16.6%, suggesting that the decorative surface acts as a barrier to formaldehyde emission even for the samples of such a small size used in the flask method. In addition, very high correlation, of 0,989 and 0,959, was found between the formaldehyde content values (perforator method) and the values of formaldehyde release from sanded and melamine faced samples, respectively.

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