Analytical CPP in Rotated Energy-Mapped Stress Space: A Finite-Element Implementation in Mathematica Software

2020 ◽  
Vol 146 (4) ◽  
pp. 04020017
Author(s):  
Diogo L. Cecílio
Author(s):  
R E Cornwell

There are numerous situations in machine component design in which curved beams with cross-sections of arbitrary geometry are loaded in the plane of curvature, i.e. in flexure. However, there is little guidance in the technical literature concerning how the shear stresses resulting from out-of-plane loading of these same components are effected by the component's curvature. The current literature on out-of-plane loading of curved members relates almost exclusively to the circular and rectangular cross-sections used in springs. This article extends the range of applicability of stress concentration factors for curved beams with circular and rectangular cross-sections and greatly expands the types of cross-sections for which stress concentration factors are available. Wahl's stress concentration factor for circular cross-sections, usually assumed only valid for spring indices above 3.0, is shown to be applicable for spring indices as low as 1.2. The theory applicable to the torsion of curved beams and its finite-element implementation are outlined. Results developed using the finite-element implementation agree with previously available data for circular and rectangular cross-sections while providing stress concentration factors for a wider variety of cross-section geometries and spring indices.


2014 ◽  
Vol 100 ◽  
pp. 138-154 ◽  
Author(s):  
Lanhao Zhao ◽  
Jia Mao ◽  
Xin Bai ◽  
Xiaoqing Liu ◽  
Tongchun Li ◽  
...  

2020 ◽  
Vol 2020 (0) ◽  
pp. J03139
Author(s):  
Shotaro KIKUCHI ◽  
Hiroaki MIYOSHI ◽  
Seishiro MATSUBARA ◽  
Dai OKUMURA

Sign in / Sign up

Export Citation Format

Share Document