scholarly journals An algorithm for statistical evaluation of weld toe geometries using laser triangulation

Author(s):  
Autors: Finn Renken ◽  
Rüdiger Ulrich Franz von Bock und Polach ◽  
Jan Schubnell ◽  
Matthias Jung ◽  
Markus Oswald ◽  
...  
2021 ◽  
Author(s):  
Finn Renken ◽  
Rüdiger Ulrich Franz von Bock und Polach ◽  
Jan Schubnell ◽  
Matthias Jung ◽  
Markus Oswald ◽  
...  

Commonly, to evaluate the influence of the local weld geometry in fatigue test, small-scale specimens are used, assuming those represent a longer weld adequately. In this study, a comparison between short specimens and a long weld is performed. A method is developed for the statistical evaluation of weld toe radii and angles, stress concentration factors and weld quality classes. The results show a strong sampling rate dependence and lower ISO 5817:2014 weld quality results for higher sampling rates. Comparable results between short specimens and a long weld can be achieved using modal values of the parameters assuming a lognormal distribution.


JAMA ◽  
1966 ◽  
Vol 195 (13) ◽  
pp. 1123-1128 ◽  
Author(s):  
S. Schor

1964 ◽  
Vol 03 (01) ◽  
pp. 11-19 ◽  
Author(s):  
A. Proppe

SummaryCase histories suitable for statistical evaluation can be found even as far back as in the Corpus Hippocraticum. Such simple data as the patient’s age, body weight, size, the date of menarche, etc. are practically always included in the case records, and it is demonstrated that, when such data are recorded in a system of documentation suitable for mechanical sorting, it may enable us to draw conclusions of very great importance. Mechanical registration methods have revealed that, in the determination and recording of data as hitherto carried out. there has been a surprisingly large number of errors and a high degree of unreliability. This view has a considerable influence on modern clinical methods; it renders a more democratic relation between physician and patient necessary and makes clear the need for measures to enhance the reliability of diagnosis and treatment of pathological conditions. The author illustrates this view with reference to the mechanical falsification of the thesis of the proneness of early age groups to lupus vulgaris, furthermore with reference to the mechanical rationalization of modern routine diagnostic methods, to the constant surveillance of adverse effects on public health and to the protection against allergic reactions with the aid of recording systems of personal allergy and intolerance data with mechanical sorting and computer techniques.


2008 ◽  
Vol 128 (2) ◽  
pp. 199-206
Author(s):  
Yusuke Kondo ◽  
Takeyoshi Kato ◽  
Yasuo Suzuoki ◽  
Toshihisa Funabashi

Sign in / Sign up

Export Citation Format

Share Document