Neural network for structural stress concentration factors in reliability-based optimization

Author(s):  
Y M Zhang ◽  
L Zhang ◽  
J X Zheng ◽  
B C Wen
2020 ◽  
Vol 62 (4) ◽  
pp. 413-421 ◽  
Author(s):  
Murat Tolga Ozkan ◽  
Fulya Erdemir

Materials ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 546
Author(s):  
Krzysztof L. Molski ◽  
Piotr Tarasiuk

The paper deals with the problem of stress concentration at the weld toe of a plate T-joint subjected to axial, bending, and shearing loading modes. Theoretical stress concentration factors were obtained from numerical simulations using the finite element method for several thousand geometrical cases, where five of the most important geometrical parameters of the joint were considered to be independent variables. For each loading mode—axial, bending, and shearing—highly accurate closed form parametric expression has been derived with a maximum percentage error lower than 2% with respect to the numerical values. Validity of each approximating formula covers the range of dimensional proportions of welded plate T-joints used in engineering applications. Two limiting cases are also included in the solutions—when the weld toe radius tends to zero and the main plate thickness becomes infinite.


2021 ◽  
Vol 181 ◽  
pp. 106592
Author(s):  
Yinghao Duan ◽  
Bin Cheng ◽  
Fenghua Huang ◽  
Man-Tai Chen

2004 ◽  
Vol 1-2 ◽  
pp. 153-158 ◽  
Author(s):  
S. Quinn ◽  
Janice M. Dulieu-Barton

A review of the Stress Concentration Factors (SCFs) obtained from normal and oblique holes in thick flat plates loaded in uniaxial tension has been conducted. The review focuses on values from the plate surface and discusses the ramifications of making a plane stress assumption.


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