Xinsheng Xu
Dalian University of Technology
PiezoelectricityPhysicsHamiltonian systemEigenfunctionMathematical analysisFinite element methodEigenvalues and eigenvectorsSeparation of variablesComposite materialSymplectic geometryHamiltonian (quantum mechanics)Boundary value problemMaterials scienceVibrationGeometryMathematicsMechanicsStructural engineeringClassical mechanicsBuckling
119Publications
22H-index
1,339Citations
Publications 123
Newest
Abstract null null Unlike the widely used eigen-buckling theory, the nonlinear post-buckling analysis provides a more accurate stability model of piezoelectric cylindrical shells and predicates more reliable instability characteristics. In this paper, an accurate post-buckling analysis of piezoelectric functionally graded cylindrical shells under combined electro-thermo-mechanical loadings is performed. The nonlinear large deflection governing equations involving the self-induced electric potent...
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#1Zhenting YangH-Index: 3
#2Xiong YuH-Index: 3
Last. Xinsheng XuH-Index: 22
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Abstract null null A kind of novel suspended nano thin films that exhibit excellent thermoacoustic effects is introduced as a promising candidate and a new approach for acoustic wave generation without mechanical vibration. Although several analytical models have been established in the past to determine thermoacoustic fields and to aid design optimization, there still show many limitations. In particular, those analyses in the past are mostly only available for one-dimensional problems. In this...
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#1Shengbo ZhuH-Index: 4
#2Jiabin SunH-Index: 10
Last. Xinsheng XuH-Index: 22
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Abstract Axial compressed cylindrical shell has a post-buckling equilibrium state far below the critical load of eigenvalue buckling, therefore the post-buckling analysis could provide a more reliable instability criterion for engineering design. In this paper, the post-buckling analysis of magneto-electro-elastic (MEE) composite cylindrical shells subjected to multi-field coupled loadings is performed. The nonlinear large deflection governing equations for MEE composite cylindrical shells are e...
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#1A.D. Lai (DUT: Dalian University of Technology)H-Index: 1
#2J.F. Jia (DUT: Dalian University of Technology)H-Index: 1
Last. C.W. Lim (CityU: City University of Hong Kong)H-Index: 63
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#3Wang Wei (DUT: Dalian University of Technology)
Abstract null null A high-efficient energy absorption design in virtue of ultrasonic impact surface nanocrystallization treatment is proposed to enhance the crashworthiness of square thin-walled tubes. Due to significant improvement on mechanical characteristics within the treated areas, structural crashworthiness after surface nanocrystallization is significantly increased without the requirement of modifying configurations or mass. The results reveal that by optimizing local surface nanocrysta...
2 CitationsSource
#1Zhenhuan Zhou (DUT: Dalian University of Technology)H-Index: 14
#2Jinxin Wang (DUT: Dalian University of Technology)
Last. C.W. Lim (CityU: City University of Hong Kong)H-Index: 63
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A novel carbon nanotube (CNT) thin film spherical array panel having excellent thermoacoustic performance and characteristics is proposed to generate low intensity focused ultrasound (LIFU) for non...
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An accurate model for vibration of a porous magneto-electro-thermo-elastic functionally graded (METE-FG) cylindrical shell made of barium titanate (BaTiO3) and cobalt diiron tetraoxide (CoFe2O4) wi...
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#1J.F. Jia (DUT: Dalian University of Technology)H-Index: 1
#2A.D. Lai (DUT: Dalian University of Technology)H-Index: 1
Last. C.W. Lim (CityU: City University of Hong Kong)H-Index: 63
view all 8 authors...
Abstract Based on the Reissner shell theory and a new symplectic method, an analytical exact solution approach is presented in this paper to deal with free vibration of stepped cylindrical shells with thickness variations in both the axial and circumferential directions. Such cylindrical shells are often applied for designing aeronautics and space structures and hence any local defects and local geometric variations will result in significant design consequences. For this reason, this paper inte...
4 CitationsSource
An innovative and new technology on enhancing buckling resistance is established in this work by making use of local surface nanocrystallization to significantly improve the critical loads of thin-walled structures under axial compression loads. By capitalizing new design approaches of local nanocrystallization, critical loads of thin-walled structures can be dramatically increased owing to the marked enhancement of yield stresses of materials within the treated domain. No additional material ad...
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