Article
Engineering, Civil
Chunfeng Wan, Jiale Hou, Songtao Xue, Guangcai Zhang, Liyu Xie, Guangxing Huang
Summary: This paper considers the rotary inertia caused by shear deformation in the Timoshenko beam and derives its dynamic response under forced vibration. Numerical analysis is conducted on beams with different lengths and boundary conditions using four different beam theories. The results show that the shear deformation-induced rotary inertia has a small effect on thin and slender beams, but is significant for short and deep beams with high stiffness. The modification of shear rotary inertia is evident when the external load frequency is close to the first natural frequency of the beam. The proposed modified Timoshenko beam theory is a more reasonable and accurate model for calculating responses of beams under forced vibration.
Article
Mathematics, Applied
X. -L Gao
Summary: In this study, the critical velocities of a two-layer composite tube subjected to a uniform internal pressure moving at a constant velocity are analytically derived. The effects of transverse shear, rotary inertia, and material anisotropy are considered. Closed-form expressions for the critical velocities are derived for the general case, including the effects of various factors. Simplified formulas for specific cases are also obtained. The proposed model is compared with existing data for validation.
ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND PHYSIK
(2023)
Article
Management
Raphael Kaplinsky, W. Edward Steinmueller
Summary: This special section reviews Chris Freeman's contributions to understanding the world and his efforts to make it a better place, and identifies the concepts, frameworks, and insights that can be carried forward from his centenary celebration.
Article
Mechanics
M. Avey, N. Fantuzzi, A. H. Sofiyev
Summary: This study determines the fundamental frequencies of laminated double-curved nanocomposite structures by considering transverse shear stresses and rotary inertia. The influences of various factors on the fundamental frequency are examined using numerical methods and analytical expressions.
COMPOSITE STRUCTURES
(2022)
Editorial Material
Anesthesiology
Hugh C. Hemmings Jr, David G. Lambert
Summary: In 2023, the British Journal of Anaesthesia celebrates its centenary by organizing various initiatives to commemorate its significant contributions to patient care, medical research, and medical education over the past century.
BRITISH JOURNAL OF ANAESTHESIA
(2023)
Article
Chemistry, Multidisciplinary
Habibullah Bilge, Omer Kadir Morgul
Summary: This study investigates the transverse vibration of free-free slender beams with two unequal end masses attached. The effects of the rotational inertia of the end masses on the free vibration of the beam are explored. The study provides an exact frequency equation and boundary conditions and calculates the natural frequencies and mode shapes of the beams under different physical and geometrical parameters. Experimental tests validate the analytical results and show good agreement. The study aims to understand the effects of end mass rotary inertia on the dynamic behavior of the beam and contributes to the design of end-mass-attached structures.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Industrial
Zhe Zhang, Dong Liu, Zhenfei Li, Yangyang Zhang, Runqiang Zhang, Yanhui Yang, Yuhua Pang, Jianguo Wang
Summary: The research investigates the impact of shear-torsion deformation on the separation layer defects and microstructure evolution during the thick-walled tube preparation. It is found that the roll speed and reduction rate have significant effects on the shear-torsion deformation.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2021)
Article
Metallurgy & Metallurgical Engineering
Dingcong Cui, Qingfeng Wu, Feng Jin, Chenbo Xu, Mingxin Wang, Zhijun Wang, Junjie Li, Feng He, Jinglong Li, Jincheng Wang
Summary: A defect-free Ti2AlNb joint has been obtained using inertia friction welding technology. The weld zone consists of B2 grains refined by discontinuous dynamic recrystallization and enhanced by grain refinement strengthening. The heterogeneous structure of the joint causes strong strain partitioning during tensile deformation, leading to microcrack initiation and premature fracture in the heat-affected zone.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2023)
Article
Multidisciplinary Sciences
Mohsen Nasr Esfahani, Mohammad Hashemian, Farshid Aghadavoudi
Summary: This paper investigates the free vibration of a sandwich truncated conical shell with a saturated functionally graded porous core and two isotropic face sheets. The study analyzes the influence of various parameters on the shell's natural frequencies and reveals that porosity distribution, thickness, and compressibility of the pore fluid can all affect the natural frequencies to some extent.
SCIENTIFIC REPORTS
(2022)
Article
Nanoscience & Nanotechnology
Hyeon-Woo Son, Soong-Keun Hyun
Summary: Severe plastic deformation can increase defect density and lead to the formation of ultrafine grain structure. The addition of shear strain unexpectedly weakens the dislocation density, accelerates deformation twinning, and suppresses dislocation slip.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Multidisciplinary
Chen Wang, Binkai Zhang, Dongfang Yao, Zhuangzhuang Tian, Chunjiang Zhao
Summary: In this paper, the forming law of a bimetallic tube in the rotary ring spinning process was analyzed through numerical simulation and experimentation. The results showed that the deformation coordination of the basic and cover tubes increased with increasing press amount, while the feed ratio had a smaller effect on the thickness variation. The three-way strain of the tubes and the influence of process parameters on the equivalent strain were also studied, revealing that the radial strain was the largest, followed by axial strain and tangential strain, and the press amount had the largest effect on the equivalent strain.
APPLIED SCIENCES-BASEL
(2023)
Article
Mechanics
Huiyong Feng, Haibo Huang, Xi-Yun Lu
Summary: The rheology of capsule suspension in 2D Poiseuille flow is studied using numerical methods, showing that the apparent viscosity is influenced by capsule volume fraction and bending stiffness. Different flow regimes and equilibrium spatial configurations are observed, with capsule position affecting viscosity. In dilute cases, changes in flow regimes with increasing Reynolds number are noted, while in concentrated cases, the optimal volume fraction for capsule transport increases with Reynolds number.
Article
Materials Science, Multidisciplinary
Liang Wen, Yongjie Li, Silai Zheng, Hao Xu, Yunshuang Liu, Qiaolong Yuan, Yuanpeng Zhang, Hao Wu, Yuzhou Shen, Jizhou Kong, Hongyu Wei
Summary: This paper proposes an analytical calculation method of deformation force based on pure shear deformation. A graphical method is used to approximate the contact area between the forming tool and the sheet metal. A forming test is designed to validate the analytical method. The results show the effectiveness of using the analytical method to calculate the deformation force.
Article
Construction & Building Technology
Lei Zhang, Xiaolei Han, Xijun Chen, Jing Ji
Summary: This paper aims to study the seismic behavior of squat steel-reinforced concrete (SRC) shear walls with a high axial load ratio. Nine squat SRC shear walls with varying axial load ratios, steel ratios, and horizontal distributed reinforcement ratios were tested. The results showed that all the specimens failed in shear with the crushing of the web concrete. Larger steel ratios reduced the buckling degree of the structural steel, while a larger horizontal distributed reinforcement ratio was beneficial for the ductility and energy dissipation capacity of the specimen.
Article
Engineering, Civil
Camilo J. Fernandez-Escobar, Carlos A. Vega-Posada, Edwin F. Garcia-Aristizabal
Summary: This article focuses on investigating the influence of shear deformation and its interaction with the surrounding soil in short, rigid, and large-diameter piles. Through a parametric study using SAP2000 software, it is found that the deflection and rotation of the pile head significantly increase when considering shear deformation, with the most significant effect observed at low values of the pile/soil stiffness ratio.
ENGINEERING STRUCTURES
(2023)
Article
Acoustics
J. Kaplunov, A. Nobili
JOURNAL OF VIBRATION AND CONTROL
(2017)
Article
Mathematics, Applied
I. V. Andrianov, J. Kaplunov, A. K. Kudaibergenov, L. I. Manevitch
ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND PHYSIK
(2018)
Article
Multidisciplinary Sciences
E. Nolde, A. V. Pichugin, J. Kaplunov
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2018)
Article
Multidisciplinary Sciences
Baris Erbas, Julius Kaplunov, Evgeniya Nolde, Melike Palsu
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2018)
Article
Mathematics, Applied
J. Kaplunov, D. Prikazchikov, L. Sultanova
ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND PHYSIK
(2018)
Article
Mathematics, Applied
J. Kaplunov, D. Prikazchikov, L. Sultanova
ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND PHYSIK
(2019)
Article
Multidisciplinary Sciences
P. T. Wootton, J. Kaplunov, D. J. Colquitt
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2019)
Article
Multidisciplinary Sciences
J. Kaplunov, D. Prikazchikov, L. Sultanova
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2019)
Article
Multidisciplinary Sciences
Yibin Fu, Julius Kaplunov, Danila Prikazchikov
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2020)
Editorial Material
Multidisciplinary Sciences
Yibin Fu, Julius Kaplunov, Ray W. Ogden
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2020)
Article
Multidisciplinary Sciences
J. Kaplunov, D. A. Prikazchikov, L. Prikazchikova
Summary: This article revisits the Rayleigh-type wave solution in non-local elasticity and proposes a modified differential model taking into account the non-local boundary layer. It is found that the boundary layer effect leads to a non-local correction to the classical Rayleigh wave speed.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2022)
Article
Mathematics
Lenser A. Aghalovyan, Lusine G. Ghulghazaryan, Julius Kaplunov, Danila Prikazchikov
Summary: This study investigates the effect of high contrast on the multiscale behavior of elastic laminates, using the antiplane shear of a symmetric, three-layered plate as an example. The high contrast is found to generally support additional length and time scales associated with degenerated boundary layers and propagating long-wave low-frequency vibration modes. The developed multiparametric approach demonstrates that these two phenomena do not always appear simultaneously, and explicit estimates on contrast parameters are established. Additionally, the study adapts the recent asymptotic extension of the classical Saint-Venant's principle to calculate the contribution of the degenerate boundary layer or long-wave low-frequency propagation mode, and addresses the peculiarity of the limiting absorption principle in application to layered media.
Proceedings Paper
Engineering, Civil
Saad N. Althobaiti, Julius Kaplunov, Danila A. Prikazchikov
X INTERNATIONAL CONFERENCE ON STRUCTURAL DYNAMICS (EURODYN 2017)
(2017)
Proceedings Paper
Engineering, Civil
Nihal Ege, Baris Erbas, Andreas Chorozoglou, Julius Kaplunov, Danila A. Prikazchikov
X INTERNATIONAL CONFERENCE ON STRUCTURAL DYNAMICS (EURODYN 2017)
(2017)
Proceedings Paper
Engineering, Civil
J. Kaplunov, D. A. Prikazchikov, L. A. Prikazchikova
X INTERNATIONAL CONFERENCE ON STRUCTURAL DYNAMICS (EURODYN 2017)
(2017)
