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Design and experiment of a novel pneumatic soft arm based on a deployable origami exoskeleton

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 4, doi: 10.1007/s11465-023-0770-2

Abstract: However, soft arms made from soft materials exhibit limited cargo-loading capacity, which restricts their

Keywords： pneumatic soft arm     soft airbag     deployable origami exoskeleton     bistable characteristics     cargo-loadingcapacity    

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Pull-through capacity of bolted thin steel plate

Zhongwei ZHAO, Miao LIU, Haiqing LIU, Bing LIANG, Yongjing LI, Yuzhuo ZHANG

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 5,   Pages 1166-1179 doi: 10.1007/s11709-020-0641-4

Abstract: The loading capacity in the axial direction of a bolted thin steel plate was investigated.nut, the yield strength of the steel plate, the preload of the bolt, and shear force, on the ultimate loadingcapacity.compared and the results indicated that the analytical method can accurately predict the pull-through capacityThe work reported in this paper can provide a simplified calculation method for the loading capacity

Keywords： bolted thin steel plate     refined numerical model     loading capacity     nonlinear spring element     analytical    

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Lateral shear performance of sheathed post-and-beam wooden structures with small panels

Frontiers of Structural and Civil Engineering   Pages 1117-1131 doi: 10.1007/s11709-023-0939-0

Abstract: Evidence indicates that nail spacing and panel thickness determine the lateral capacity of the wood framewe subjected 13 shear walls, measuring 0.91 m in width and 2.925 m in height, to a low-cycle cyclic loadingWhen same nail specifications were adopted, the stiffness and bearing capacity of the walls were inversely

Keywords： post-and-beam wooden structures with sheathed walls     low reversed cyclic loading     bearing capacity     stiffness    

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The Loading Capacity of Three Point Bending BeamWith the Resistant Force of Cohesive Crack

Wang Limin,Xu Shi ,Ren Chuanbo

Strategic Study of CAE 2007, Volume 9, Issue 2,   Pages 30-35

Abstract: extension.The stress intensity factor of crack solids is a fracture mechanics index that denotes the effect of loadingpoint bending beam, the effect of crack cohesive force on the fracture process is analyzed.For maximum loading

Keywords： cohesive crack     three point bending beam     concrete     double唱K fracture parameters     structureloading capacity    

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enhanced damage plasticity model for predicting the cyclic behavior of plain concrete under multiaxial loading

Mohammad Reza AZADI KAKAVAND, Ertugrul TACIROGLU

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6,   Pages 1531-1544 doi: 10.1007/s11709-020-0675-7

Abstract: current models that adopt two damage variables, the independence of these damage variables during cyclic loadingThe model describes the cyclic behavior of concrete under multiaxial loading conditions and considersusing experimental data on concrete specimens at the material level obtained under cyclic multiaxial loading

Keywords： damage plasticity model     plain concrete     cyclic loading     multiaxial loading conditions    

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Experimental, analytical and numerical studies on concrete encased trapezoidally web profiled cold formed steel beams by varying depth-thickness ratio

Divahar RAVI, Aravind Raj PONSUBBIAH, Sangeetha Sreekumar PRABHA, Joanna Philip SARATHA

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 4,   Pages 930-946 doi: 10.1007/s11709-020-0652-1

Abstract: steel beams are used worldwide to improve resistance toward fire and corrosion, higher load carrying capacitycold-formed steel beams which were simply supported at both ends and subjected to two point symmetric loadingExperimental results such as load-deflection relationship, ultimate capacity, load-strain relationshipthe beams with concrete encased 30° trapezoidally corrugated web having ( / ) ratio 60 and 80, the loadingcapacity was improved about 54% and 67.3% and the ductility also increased about 1.6 and 3.6 times,

Keywords： concrete encased beam     trapezoidally corrugated web     loading capacity     super elasto-plastic    

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Reconsideration on the effect of nitrogen on mixed culture polyhydroxyalkanoate production toward high organic loading

Zhiqiang Chen, Lizhi Zhao, Ye Ji, Qinxue Wen, Long Huang

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 4, doi: 10.1007/s11783-019-1135-2

Abstract:

Effect of nitrogen on mixed culture PHA production was reconsidered.

Enrichment history of PHA accumulating culture was discussed.

Higher PHA content and biomass growth were achieved in presence of nitrogen.

Enrichment strategy toward higher PHA accumulation was investigated.

Microbial community succession in PHA accumulation phase was investigated.

Keywords： Polyhydroxyalkanoate (PHA)     Organic loading rate     Nitrogen content     Biomass growth     Enrichment history    

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Effect of loading rate on shear strength parameters of mechanically and biologically treated waste

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1595-7

Abstract:

● Mechanical behavior of MBT waste affected by loading rate was investigated

Keywords： Mechanically and biologically treated waste     Landfill     Triaxial test     Loading rate     Axial strain     Shear    

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Axisymmetric loading on nanoscale multilayered media

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 1,   Pages 152-164 doi: 10.1007/s11709-022-0895-0

Abstract: Multilayered nanoscale structures are used in several applications. Because the effect of surface energy becomes nontrivial at such a small scale, a modified continuum theory is required to accurately predict their mechanical behaviors. A Gurtin–Murdoch continuum model of surface elasticity is implemented to establish a computational scheme for investigating an elastic multilayered system under axisymmetric loads with the incorporation of surface/interface energy. Each layer stiffness matrix is derived based on the general solutions of stresses and displacements obtained in the form of the Hankel integral transform. Numerical solutions to the global equation, which are formulated based on the continuity conditions of tractions and displacements across interfaces between layers, yield the displacements at each layer interface and on the top surface of the multilayered medium. The numerical solutions indicate that the elastic responses of multilayered structures are affected significantly by the surface material properties of both the top surface and interfaces, and that they become size dependent. In addition, the indentation problem of a multilayered nanoscale elastic medium under a rigid frictionless cylindrical punch is investigated to demonstrate the application of the proposed solution scheme.

Keywords： functionally graded layer     Gurtin–Murdoch surface elasticity     multilayered medium     size dependency     stiffness matrix    

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Data-driven approach to solve vertical drain under time-dependent loading

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 696-711 doi: 10.1007/s11709-021-0727-7

Abstract: prediction models with three different radial drainage patterns in the smear zone under time-dependent loading

Keywords： vertical drain     artificial neural network     time-dependent loading     deep learning network     genetic algorithm    

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Comparison and harmonization of building wind loading codes among the Asia-Pacific Economies

Yaojun GE, Shuyang CAO, Xinyang JIN

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 402-410 doi: 10.1007/s11709-013-0230-x

Abstract: This paper reviews wind loading codes and standards in the Asia-Pacific Region, in particular in theA general description of wind loading model is given as a famous wind loading chain described by four

Keywords： wind loading     codification     velocity pressure     exposure factor     pressure coefficient     gust response factor    

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Solution to economic dispatch problem with valve-point loading effect by using catfish PSO algorithm

K. MURALI,T. JAYABARATHI

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 290-296 doi: 10.1007/s11708-014-0305-y

Abstract: The ED problems considered in this paper include valve-point loading effect, power balance constraints

Keywords： economic dispatch (ED)     valve point loading     catfish particle swarm optimization (PSO)     optimization    

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Effect of Fe loading quantity on reduction reactivity of nano zero-valent iron supported on chelating

Jialu SHI,Shengnan YI,Chao LONG,Aimin LI

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5,   Pages 840-849 doi: 10.1007/s11783-015-0781-2

Abstract: To investigate the effect of Fe loading on NZVI reactivity, three NZVI-resin composites with differentFe loading were obtained by preparing Fe(III) solution in 0, 30 and 70% (v/v) ethanol aqueous, respectivelyTEM reveals that increasing the Fe loading resulted in much larger size and poor dispersion of nanoscalethat the removal efficiency of bromate and the rate constant ( ) were decreased with increasing the Fe loadinghowever, under alkaline conditions, the most significant influence of pH was on NZVI-R1 with lowest Fe loading

Keywords： nanoscale zero valent iron     loading quantity     reduction     chelating resin     bromated    

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Meshing stiffness property and meshing status simulation of harmonic drive under transmission loading

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0674-6

Abstract: drive (HD) is an important basic characteristic of its high transformation precision and high bearing capacityTo calculate the spatial distributed meshing forces and loading backlashes along the axial direction,and finite element model (FEM) is proposed to investigate the meshing state under varied transmission loadingBased on the relationship of meshing forces and circumferential displacements, meshing forces and loadingthen the teeth in the middle cross-section of the tooth rim enter the meshing and carry most of the loading

Keywords： harmonic drive     meshing flexibility matrix     meshing force     loading backlash     flexspline     contact analysis    

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between laboratory and field moduli of asphalt layer for pavement design and assessment: A comprehensive loading

Huailei CHENG; Liping LIU; Lijun SUN

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 3,   Pages 267-280 doi: 10.1007/s11709-022-0811-7

Abstract: However, this parameter varies between the laboratory and field loading modes (i.e., loading frequency, compressive or tensile loading pattern), due to the viscoelastic property and composite structure ofThe field modes are vehicular and falling weight deflectometer (FWD) loading modes, and the laboratoryones are uniaxial compressive (UC), indirect tensile (IDT), and four-point bending (4PB) loading modesdifferent loading modes.

Keywords： asphalt mixture layer     stiffness modulus     loading mode     UC/4PB/IDT     FWD     frequency    

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Title Author Date Type Operation

Design and experiment of a novel pneumatic soft arm based on a deployable origami exoskeleton

Journal Article

Pull-through capacity of bolted thin steel plate

Zhongwei ZHAO, Miao LIU, Haiqing LIU, Bing LIANG, Yongjing LI, Yuzhuo ZHANG

Journal Article

Lateral shear performance of sheathed post-and-beam wooden structures with small panels

Journal Article

The Loading Capacity of Three Point Bending BeamWith the Resistant Force of Cohesive Crack

Wang Limin,Xu Shi ,Ren Chuanbo

Journal Article

enhanced damage plasticity model for predicting the cyclic behavior of plain concrete under multiaxial loading

Mohammad Reza AZADI KAKAVAND, Ertugrul TACIROGLU

Journal Article

Experimental, analytical and numerical studies on concrete encased trapezoidally web profiled cold formed steel beams by varying depth-thickness ratio

Divahar RAVI, Aravind Raj PONSUBBIAH, Sangeetha Sreekumar PRABHA, Joanna Philip SARATHA

Journal Article

Reconsideration on the effect of nitrogen on mixed culture polyhydroxyalkanoate production toward high organic loading

Zhiqiang Chen, Lizhi Zhao, Ye Ji, Qinxue Wen, Long Huang

Journal Article

Effect of loading rate on shear strength parameters of mechanically and biologically treated waste

Journal Article

Axisymmetric loading on nanoscale multilayered media

Journal Article

Data-driven approach to solve vertical drain under time-dependent loading

Journal Article

Comparison and harmonization of building wind loading codes among the Asia-Pacific Economies

Yaojun GE, Shuyang CAO, Xinyang JIN

Journal Article

Solution to economic dispatch problem with valve-point loading effect by using catfish PSO algorithm

K. MURALI,T. JAYABARATHI

Journal Article

Effect of Fe loading quantity on reduction reactivity of nano zero-valent iron supported on chelating

Jialu SHI,Shengnan YI,Chao LONG,Aimin LI

Journal Article

Meshing stiffness property and meshing status simulation of harmonic drive under transmission loading

Journal Article

between laboratory and field moduli of asphalt layer for pavement design and assessment: A comprehensive loading

Huailei CHENG; Liping LIU; Lijun SUN

Journal Article