International Journal of Mechanical Sciences
Papers 8,895
1 page of 890 pages (8,895 results)
#1Kun Wu (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 1
#2Haiyan Hu (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 6
Last. Yuqiang Gao (NUAA: Nanjing University of Aeronautics and Astronautics)
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Abstract null null The paper presents an integrated analytical, numerical and experimental study on a kind of one-dimensional finite aperiodic metastructure, with mass-in-mass unit cells optimized for the broadband wave attenuation via genetic algorithm. The study begins with the analytic wave solution of the aperiodic structure and numerically validates the correctness of the wave solution in both frequency domain and time domain. Then, the paper outlines the optimization scheme in order to con...
#1Hongye Ma (CAS: Chinese Academy of Sciences)H-Index: 3
#2Ke Wang (CAS: Chinese Academy of Sciences)H-Index: 9
Last. Bo Yan (CAS: Chinese Academy of Sciences)H-Index: 15
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Abstract null null Utilizing elastic metamaterials for energy dissipation is a promising research hotspot since it is reusable compared with the plastic material. An innovative, reusable and self-recoverable metastructure (RSRMS) with tetrahedral motif unit cells (TMUCs) for tri-directional energy dissipation is presented in this paper. TMUC, fabricated via 3D printing, mainly composes of a skeleton, six double curved beams, four near-rigid columns, and four caps. The force-displacement relation...
#1Kunjie Sun (SJTU: Shanghai Jiao Tong University)
#2Xiaochun Nie (Chongqing University of Science and Technology)H-Index: 2
Last. Zhimiao Yan (SJTU: Shanghai Jiao Tong University)H-Index: 19
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Abstract null null The existing studies on mathematical modeling for the forced vibration response of naturally curved beams under elastic boundary conditions mainly focus on slightly curved structures. This work proposes the mathematical model for naturally curved beam with a large curvature under the elastic boundary. Under the assumption of small deformations, the six degrees of freedom are reduced to four degrees of freedom through spatial bending beam theory and differential geometry. The d...
#1C.B. Zhang (DUT: Dalian University of Technology)H-Index: 3
#2Zhigang Dong (DUT: Dalian University of Technology)H-Index: 11
Last. Dongming Guo (DUT: Dalian University of Technology)H-Index: 32
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Abstract null null In this study, the deformation mechanism of gallium-faces (Ga-faces) and nitrogen-faces (N-faces) gallium nitride (GaN) during nanogrinding were investigated by molecular dynamics (MD). The differences between the two were analyzed from force, temperature, potential energy, surface/subsurface damage, and material removal rate (MRR). The results show that N-faces GaN withstand lower grinding force, higher temperature, potential energy, and MRR. Meanwhile, the total length of di...
#1Soroush Sepehri (UT: University of Tehran)H-Index: 3
#2Mahmoud Mosavi Mashhadi (UT: University of Tehran)H-Index: 20
Last. Mir Masoud Seyyed Fakhrabadi (UT: University of Tehran)H-Index: 16
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Abstract null null Including nonlinearity can lead to fascinating wave propagation behavior in phononic crystals, broadening their possible applications in acoustic engineering. The current work aims to benefit from the exclusive properties of nonlinear chains, on one hand, and electromagnetic actuation, on the other hand, to actively control and deliberately manipulate propagating waves in monoatomic and mass-in-mass chains. First, the governing equations are derived and analytic dispersion rel...
#1Parag Pathak (UW: University of Wisconsin–Madison)
#2Nitesh Arora (UW: University of Wisconsin–Madison)H-Index: 6
Last. Stephan Rudykh (NUIG: National University of Ireland, Galway)H-Index: 24
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Abstract null null We investigate the microscopic and macroscopic instabilities developing in magnetoactive elastomer (MAE) composites undergoing large deformations in the presence of an external magnetic field. In particular, we consider the MAEs with bi-phasic layered microstructure, with phases exhibiting ferromagnetic behavior. We derive an explicit expression for the magnetic field-induced deformation of MAEs with hyperelastic phases. To perform the magnetoelastic instability analysis, we e...
#1Hesam Sharghi (RU: Rutgers, The State University of New Jersey)H-Index: 3
#2Onur Bilgen (RU: Rutgers, The State University of New Jersey)H-Index: 26
Abstract null null This paper presents a new low-order electric field model for Macro-Fiber Composite devices with interdigitated electrodes. Specifically, the paper proposes a continuous electric field model, where the differential form of Gauss's law is used to obtain spatial terms of the electric field, and the integral form of Gauss's law is used to obtain temporal term of the electric field. By neglecting three-dimensional effects, the method of matched asymptotic expansion is employed to o...
#1Mohammad Hodaei (University of Manitoba)H-Index: 6
#2Pooneh Maghoul (University of Manitoba)H-Index: 8
Last. Nan Wu (University of Manitoba)H-Index: 20
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Abstract null null This paper describes a three-dimensional (3D) analytical solution for the acoustic response of cancellous bone-like porous materials saturated with a viscous fluid. The effect of dynamic tortuosity, especially in clinically relevant ultrasound frequency ranges, is considered to investigate the effect of viscous interaction between the fluid and solid phases. The solution includes the effects of both fast and slow longitudinal waves as well as transverse waves propagating throu...
#1Rhosslyn Adams (Cardiff University)H-Index: 3
#2Scott Townsend (Cardiff University)H-Index: 9
Last. Peter Theobald (Cardiff University)H-Index: 14
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Abstract null null Finite element simulation was used to analyse the response of an elastomeric pre-buckled honeycomb structure under impact loading, to establish its suitability for use in helmet liners. A finite element-based optimisation was performed using a search algorithm based on a radial basis function. This approach identified optimisation configurations of a pre-buckled honeycomb structure, based on structural bounds subject to impact loading conditions. Furthermore, the influence of ...
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