scholarly journals STUDY ON THE INELASTIC BEHAVIOUR OF COLUMNS OF H-SHAPED CROSS SECTION UNDER BIAXIAL BENDING : Part 2. Elasto-Plastic Behaviour

1970 ◽  
Vol 176 (0) ◽  
pp. 59-65,117
Author(s):  
MORIHISA FUJIMOTO ◽  
YOSHINORI MATSUMOTO
Keyword(s):  
Cross Section ◽  
Biaxial Bending ◽  
Plastic Behaviour ◽  
Inelastic Behaviour ◽  
Shaped Cross Section

Axial Force and Biaxial Bending Interaction for I-Shaped Cross Section

2021 ◽  
Vol 26 (4) ◽  
pp. 04021042
Author(s):  
Tarek Sharaf ◽  
Ahmed Hanefa ◽  
Ahmed Zubydan ◽  
Mohamed Elghandour ◽  
Ashraf Elsabbagh
Keyword(s):  
Cross Section ◽  
Axial Force ◽  
Biaxial Bending ◽  
Shaped Cross Section

scholarly journals Influence of technical parameters on the structure of annular axis braided preforms

2021 ◽  
Vol 28 (1) ◽  
pp. 160-168
Author(s):  
Xi Wang ◽  
Guoli Zhang ◽  
Xiaoping Shi ◽  
Ce Zhang
Keyword(s):  
Cross Section ◽  
Rotation Speed ◽  
Technical Parameters ◽  
Braiding Angle ◽  
Shaped Cross Section

Abstract A modified vertical braiding machine and closed annular axis mandrels with a special-shaped cross section were used to braid annular axis preforms under four different technical parameters. After measuring the braiding angles and yarn spacing of the braided preform in different areas of the mandrels, it was found that the braiding angle increased by 20.9% and the yarn spacing decreased by 19.8% when the speed of the yarn carrier was doubled. The braiding angle decreased by 31.1% and the yarn spacing increased by 28.6% when the rotation speed of the mandrels was doubled. The results show that the rotation speed of the mandrel has a slightly greater influence on the braiding angle and the yarn spacing. By using the modified braiding machine to braid the annular axis preforms, multi-layer continuous braided preforms can be achieved on compact equipment. And the structure of the annular axis braided preforms can be changed by changing the technical parameters.

scholarly journals Design of an Edge Slotted Waveguide Antenna Array Based on T-Shaped Cross-Section Waveguide

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Teng Li ◽  
Wenbin Dou
Keyword(s):  
Surface Wave ◽  
Antenna Array ◽  
Cross Section ◽  
Mutual Coupling ◽  
Dominant Mode ◽  
Waveguide Structure ◽  
Center Frequency ◽  
Sidelobe Level ◽  
Slotted Waveguide ◽  
Shaped Cross Section

An edge slotted waveguide antenna array based on T-shaped cross-section radiating waveguide is proposed. The T-shaped waveguide is analyzed and designed to operate in dominant mode around the center frequency, which has a lower profile compared with the rectangular one. The radiating slots are etched and rotated alternatively on the broadened top plate without cutting into the adjacent walls. The metal fences are inserted between slots to reduce the mutual coupling and surface wave. Therefore, the sidelobe level in E-plane is well suppressed. A 2 × 8 antenna array working at Ka-band is designed and fabricated. The measured results agree well with simulations which demonstrate this novel waveguide structure.

An analytical model of a curved beam with a T shaped cross section

2018 ◽  
Vol 416 ◽  
pp. 29-54 ◽  
Author(s):  
Andrew J. Hull ◽  
Daniel Perez ◽  
Donald L. Cox
Keyword(s):  
Analytical Model ◽  
Cross Section ◽  
Curved Beam ◽  
Shaped Cross Section

scholarly journals Feasibility Study on the Wave-Control Method using Navigation Channel with V-Shaped Cross Section

2007 ◽  
Vol 54 ◽  
pp. 771-775
Author(s):  
Osamu KUNITA ◽  
Masatoshi YUHI ◽  
Junichi YAMAZAKI ◽  
Shinya KOTAKI ◽  
Hajime ISHIDA
Keyword(s):  
Cross Section ◽  
Feasibility Study ◽  
Control Method ◽  
Navigation Channel ◽  
Shaped Cross Section ◽  
Wave Control

Biaxial bending of cold-formed angle members

1984 ◽  
Vol 11 (4) ◽  
pp. 933-942 ◽  
Author(s):  
Murty K. S. Madugula ◽  
Sujit K. Ray
Keyword(s):  
Exact Solution ◽  
Compressive Strength ◽  
Computer Program ◽  
Cross Section ◽  
Simultaneous Equations ◽  
Biaxial Bending ◽  
Total Stress ◽  
The Cross ◽  
The Galerkin Method ◽  
Shear Centre

Theoretical load–deflection relationships for cold-formed angles under biaxial bending using the Galerkin method are presented. The computational difficulties encountered in the exact solution of differential equations of equilibrium involving 12 unknown constants in 12 simultaneous equations are pointed out. A computer program for pinned-end boundary conditions was developed to estimate the deflection components of the shear centre, to calculate the total stress at various points in the cross section, and to predict the ultimate strength of the cold-formed angle sections connected by one leg. Failure is assumed to have occurred when the total stress at any point on the cross section reaches the value of yield stress, compressive or tensile, or when there is a change of sign for at least one of the deflection components. A table giving the ultimate compressive strength of two commonly used cold-formed angles for various gauge distances is included. The theoretical load–deflection curves are compared with experimental results and typical curves for three test specimens are also presented.

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