Article
Mechanics
Hoai Nam Vu, Thi Phuong Nguyen, Si Lanh Ho, Minh Duc Vu, Van Doan Cao
Summary: This paper investigates the buckling behavior of functionally graded graphene-reinforced composite (FG-GRC) laminated cylindrical shells under axial compression, considering the uniform temperature change effect. A stiffener design option for the FG-GRC cylindrical shells is presented, and a suitable smeared stiffener technique for the GRC laminated stiffener system is developed. The effects of GRC laminated stiffeners, temperature, and graphene-reinforced parameters on the compressed buckling behavior are validated.
MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES
(2023)
Article
Mechanics
Zbigniew Kolakowski, Andrzej Teter
Summary: The behavior of FGM cylindrical shells with imperfections under compression was analyzed using an analytical-numerical method. The critical load and imperfection sensitivity surface of real structures were determined. The material gradient and support conditions of the shell were taken into account in the calculations. This research provides insights for the design and verification of shell structures.
COMPOSITE STRUCTURES
(2022)
Article
Engineering, Civil
Ranfeng Wei, Kechun Shen, Guang Pan
Summary: This paper explores the optimization of a composite cylindrical pressure hull with trapezoidal stiffeners subjected to hydrostatic pressure. The study uses both analytical and finite element methods, coupled with genetic algorithms, to optimize the cross-sectional shape of the stiffeners to achieve maximum buckling pressure. It is found that the inertia moment of the stiffener section has a good linear relationship with the buckling pressure, serving as an effective objective function for optimization. The method is proven to be efficient and applicable for optimal design of stiffener shapes in composite pressure shells.
THIN-WALLED STRUCTURES
(2021)
Article
Engineering, Aerospace
Andi Lai, Jufang Jia, Zhenhuan Zhou, Xinsheng Xu, C. W. Lim
Summary: In this study, a post-buckling model of cylindrical shells with local thickness defects is established based on the Hamiltonian system. The homotopy analysis method and the symplectic eigensolution expansion method are combined to obtain the post-buckling equilibrium path and modes of the shells. It is found that defects can induce local dents and significantly reduce the bearing capacity of the shells.
Article
Materials Science, Multidisciplinary
Tran Minh Tu, Duc-Kien Thai, Pham Van Hoan, Le Kha Hoa
Summary: This work examines the nonlinear behavior of sandwich cylindrical shells reinforced by spiral stiffener under torsional load in a thermal environment. The study uses Donnell shell theory and Lekhnitskii's stiffeners technique to derive governing equations and validates the results through comparisons. Various factors such as shell geometry, angle and number of stiffeners, material parameters, and temperature changes are investigated for their effects on shell behavior.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2022)
Article
Engineering, Civil
Rohan Majumder, Subrata Chakraborty, Sudib Kumar Mishra
Summary: Thin-walled cylindrical shells are used for their high bending stiffness and lightweight design. Elastic buckling is a critical design consideration for these shells. Knock Down Factors (KDFs) are used to account for reduced experimental critical loads. This study demonstrates the feasibility of modeling KDFs as uniformly distributed Uncertain-but-Bounded (UBB) variables.
THIN-WALLED STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Jiabin Sun, Zhenhuan Zhou, Xueqing Cao, Qifeng Zhang, Wei Sun, Zhenzhen Tong, Xinsheng Xu, C. W. Lim, J. N. Reddy
Summary: This study comprehensively investigates the extremely large post-buckling deformation of perforated cylindrical shells through experiments, analytical shell models, and nonlinear finite element simulations. A waisted post-buckling configuration characterized by uniform shrinking in the middle section of the shell is identified. This behavior is attributed to a pattern transformation under compressive load, displaying hyperelastic metamaterial characteristics. The load-carrying capacity of the waisted post-buckling mode suffers a sudden drop and then recovers when the holes are completely collapsed and closed. The negative Poisson's ratio induced by pattern transformation plays a key role in forming the waisted post-buckling modes. The findings have implications for the construction of functional devices for soft robotics, actuators, and structural protection for facilities, among other applications.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2022)
Article
Engineering, Civil
Lei Chen, Kapnang Franky, Hao Zhang, Xiaoli Xiong
Summary: Most research focuses on high-strength steel axial compression members, but few studies investigate the mechanical behavior of high-strength steel cylindrical shells in bending. This paper explores their load-bearing capacity under global bending, considering factors such as residual stress and material plasticity. The results provide valuable information for the design of high-strength steel cylindrical shells.
Article
Mechanics
Dang Thuy Dong, Pham Thanh Hieu, Vu Minh Duc, Nguyen Thi Phuong, Nguyen Van Tien, Vu Hoai Nam
Summary: The nonlinear buckling behavior of CNT-reinforced cylindrical shells with CNT-reinforced stiffeners under external pressure considering the effects of uniform temperature rise is studied in this paper. A new design of stiffener system is proposed for the CNT-reinforced cylindrical shells with five different cases of CNT distribution law. A modified homogenization technique for CNT-reinforced stiffeners is developed. By applying the Galerkin method with the solution of deflection approximated in three-term form based on the Donnell shell theory and the von Karman nonlinearity assumption, explicit expressions for critical buckling and load-deflection postbuckling curves are obtained.
MECHANICS OF COMPOSITE MATERIALS
(2023)
Article
Engineering, Marine
Pham Toan Thang, Changsoo Kim, Hyounseung Jang, Taehoon Kim, Jimin Kim
Summary: This research investigates the buckling behavior of hybrid-honeycomb sandwich (HHS) cylindrical shells under hydrostatic pressure. The HHS shells consist of ceramic-metal functionally graded (FG) layers on the outer and inner surfaces, with a layer of lightweight hybrid-honeycomb material in the center. The results show improved buckling resistance, stability, and enhanced energy absorption due to the unique microstructure of the auxetic materials.
Article
Engineering, Civil
Guangxin Sun, Shengbo Zhu, Rumin Teng, Jiabin Sun, Zhenhuan Zhou, Xinsheng Xu
Summary: In this study, the post-buckling behavior of composite porous cylindrical shells under axial compression and hydrostatic pressure is investigated using the moderately thick shell theory. The accuracy of the solutions is validated by comparing them with existing theoretical and experimental data. The study reveals that the geometry and material properties significantly affect the post-buckling behavior and knockdown factor of the cylindrical shell, and also explains and discusses the discrepancies between the classical thin-walled shell theory and the moderately thick shell theory.
THIN-WALLED STRUCTURES
(2022)
Article
Engineering, Mechanical
Shengbo Zhu, Zhenzhen Tong, Yongqi Li, Jiabin Sun, Zhenhuan Zhou, Xinsheng Xu
Summary: This paper proposes a new theoretical model for analyzing the post-buckling behavior of two-dimensional decagonal piezoelectric quasicrystal (2D decagonal PQC) cylindrical shells under axial compression. The nonlinear post-buckling equations are established based on the high-order shear deformation theory and phonon-phason-electric coupling effect. New displacement functions are introduced to enhance the Galerkin's method for solving the load-shortening curves and post-buckling deformations accurately. The numerical results are compared with existing solutions and show good agreement. A parametric study is also performed to investigate the effects of geometrical parameters, phonon-phason-electric coupling effect, and applied electric voltage on the post-buckling behavior of the cylindrical shells. The results indicate that geometrical parameters significantly influence the post-buckling equilibrium paths and deformations, while the phonon-phason coupling effect and piezoelectric effect only cause a shift in the equilibrium paths.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Mechanics
Vu Thanh Long, Hoang Van Tung
Summary: This paper analyzes the effects of porosities, tangential constraints of boundary edges, and elevated temperature on the buckling and postbuckling behaviors of thin functionally graded cylindrical shells subjected to uniform torsion. The results show that porosities have a deteriorative effect on the torsional resistance and postbuckling load capacities, while tangential edge constraints have different effects on the postbuckling strength at different temperatures.
MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES
(2023)
Article
Construction & Building Technology
Kamran Foroutan, Liming Dai
Summary: This research presents an approach to investigate the static and dynamic post-buckling behavior of sandwich functionally graded porous cylindrical shells subjected to external pressure. The study analyzes the behavior of the shells and derives explicit expressions for the static and dynamic critical buckling loading. Various parameters that affect the post-buckling behavior are investigated.
STEEL AND COMPOSITE STRUCTURES
(2022)
Article
Mechanics
Shengbo Zhu, Jiabin Sun, Zhenzhen Tong, Qingdong Li, Zhenhuan Zhou, Xinsheng Xu
Summary: This paper investigates the post-buckling analysis of MEE composite cylindrical shells subjected to multi-field coupled loadings, establishing nonlinear large deflection governing equations and obtaining post-buckling equilibrium paths through Galerkin's method with good accuracy and agreement. The effects of geometrical parameters, material properties, and multi-field coupled loadings on post-buckling behaviors of MEE composite cylindrical shells are discussed in detail.
COMPOSITE STRUCTURES
(2021)
Article
Thermodynamics
A. R. Shaterzadeh, R. Rezaei, S. Abolghasemi
JOURNAL OF THERMAL STRESSES
(2015)
Article
Thermodynamics
Hamed Behzad, Alireza Shaterzadeh, Mohammad Shariyat
JOURNAL OF THERMAL STRESSES
(2017)
Article
Mechanics
M. Shariyat, H. Behzad, A. R. Shaterzadeh
COMPOSITE STRUCTURES
(2018)
Article
Engineering, Aerospace
S. Abolghasemi, A. R. Shaterzadeh, R. Rezaei
AEROSPACE SCIENCE AND TECHNOLOGY
(2014)
Article
Thermodynamics
M. Darvizeh, A. Darvizeh, A. R. Shaterzadeh, R. Ansari
JOURNAL OF THERMAL STRESSES
(2010)
Article
Thermodynamics
A. R. Shaterzadeh, M. Darvizeh, A. Darvizeh, R. Ansari
JOURNAL OF THERMAL STRESSES
(2011)
Article
Thermodynamics
M. Darvizeh, A. Darvizeh, A. R. Shaterzadeh, R. Ansari
JOURNAL OF THERMAL STRESSES
(2011)
Article
Thermodynamics
A. R. Shaterzadeh, S. Abolghasemi, R. Rezaei
JOURNAL OF THERMAL STRESSES
(2014)