April 2025
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5 Reads
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2 Citations
International Journal of Heat and Mass Transfer
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Publications (4)
August 2023
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116 Reads
Cold-formed steel channel beam components are increasingly used in lightweight steel buildings owing to the high strength–weight ratio. However, the influence of cold working processes, in relation to corner regions, and how this impacts the bending behavior of channel beams lacks thorough evaluation. In the present study, a series of coupon and bending tests were conducted and the numerical simulation and analytical derivation were supplemented, aiming to investigate the bending performance of cold-formed steel channel beams considering the reinforcement effect in corner regions. The results show that the engineering stress–strain relationships of the flat and corner coupons conformed to the trilinear models with different characteristic parameters. The yielding and ultimate strengths of the corner specimens was increased by 50% and 7%, respectively, compared to the flat coupons due to the cold-bending technique. The strain distribution of the cold-formed channel beams accord with the plane section while the stresses at the corners were 35% higher than those at the flanges, indicting the different mechanical response of the flat and corner regions. The component-based model for cold-formed steel channel beams was established to exactly describe the influence of the cold-bending action, which was greatly validated by the experimental and numerical data with the errors of typical parameters less than 9%.
July 2023
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64 Reads
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18 Citations
Thin-Walled Structures
February 2023
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2 Reads
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15 Citations
Mechanics of Advanced Materials and Structures
Citations (2)
... (Biot, 1964) proposed a poroelastic theory to treat the same problem, while introducing both the kinematic and dynamic unknowns, whereas (Mouaici et al., 2016) proposed an analytical solution to the vibration problem of FGM plates with porosities, taking into account the exact position of the neutral surfaces. Many shear deformation theories have been employed, using different shape functions as (Ameur et al., 2011;Auad et al., 2019;Bîrsan;Pietras;Sadowski, 2021;Čukanović et al., 2018;Gilewski;Pełczyński, 2020;Hoang;Thanh, 2024;Li;Zhang;Liu, 2024;Malikan;Eremeyev, 2020;Merdaci et al., 2011;Shimpi, 2002;Wattanasakulpong;Ungbhakorn, 2014;Zenkour, 2012) In general, higher-order normal and shear strain theories that take into account the thickness stretching effect can be implemented using the unified formulation initially proposed by several authors as examples we cite (Adim;Daouadji, 2016;Amabili, 2014;Bisegna;Caruso, 2001;Carrera et al., 2011;Chaabane, 2019;Cooke;Levinson, 1983;Karami;Janghorban;Tounsi, 2019;Lee;Lim;Wang, 2002;Bonilla;Guedes Soares, 2014;Guedes Soares, 2013, 2012Merzouki;Ganapathi;Polit, 2019;Nguyen;Nguyen-Xuan, 2016;Shah;Batra, 2018;Sid Ahmed Houari;Anwar Bég, 2013;Choi, 2013) This study investigates the free vibration of imperfect FGM plates using 2D higher-order shear deformation theory, taking into account the porosities that can potentially occur inside functionally graded materials (FGMs) during their fabrication. By introducing a new shear stress shape function. ...
- Citing Article
February 2023
Mechanics of Advanced Materials and Structures
... Numerical analysis showed that the initial axial tension increased the TED of the cylindrical shells under simply supported boundary conditions and decreased it under clamped boundary conditions. In summary, the TED of resonator elements is related to factors such as their shape and size [25], vibration frequency [26], constituent materials [27], service temperature [28], pre-tension [29], internal defects [30], and boundary conditions [31]. It is evident that the factors affecting the TED of resonator elements are extremely complex. ...
- Citing Article
July 2023
Thin-Walled Structures