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Experimental and numerical investigations of the compressive behavior of carbon fiber-reinforced polymer-strengthened tubular steel T-joints

Peng DENG, Boyi YANG, Xiulong CHEN, Yan LIU

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 5, Pages 1215-1231 doi: 10.1007/s11709-020-0663-y

Abstract: The numerical analysis results revealed that the development of equivalent plastic strain at the selected

Keywords： tubular T-joint carbon fiber-reinforced polymer degree of damage numerical analysis equivalent plasticstrain

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Demonstration of the Principle of Interaction between Plastic Volume Strain and Shear for Rock and Soil

Wang Jingtao

Strategic Study of CAE 2006, Volume 8, Issue 9, Pages 24-29

Abstract:

The paper proposed a principle of interaction between plastic volume strains of and shear for rockEspecially, the manners of the interaction between plastic volume strain and shear strain, the directeffect of plastic volume strain on the resistance to shear, the conditions of generating contractionvolume strain and shear and its verification, and the fact that the critical state is a pure shearingprocess, in which the plastic and elastic volume strains remain constant, were demonstrated.

Keywords： principle of interaction between plastic volume strain and shear strain for rock and soil constitutive

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A model for creep life prediction of thin tube using strain energy density as a function of stress triaxialityunder quasi-static loading employing elastic-creep & elastic-plastic-creep deformation

Tahir MAHMOOD, Sangarapillai KANAPATHIPILLAI, Mahiuddin CHOWDHURY

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 2, Pages 181-186 doi: 10.1007/s11465-013-0257-7

Abstract: The model employs strain energy density and assumes that the uniaxial strain energy density of a componentcan be easily calculated and can be converted to multi-axial strain energy density by multiplying itto a function of stress trixiality which is a ratio of mean stress to equivalent stress.For comparison, an elastic-creep and elastic-plastic-creep finite element analysis (FEA) is performedto get multi-axial strain energy density of the component which is compared with the calculated strain

Keywords： elastic-creep elastic-plastic-creep stress triaxiality life prediction pressure vessels finite element

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The formation mechanism and the influence factor of residual stress in machining

Zhaoxu QI,Bin LI,Liangshan XIONG

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 3, Pages 265-269 doi: 10.1007/s11465-014-0311-0

Abstract: An important conclusion is drawn that the accumulated plastic strain is the main factor which determines

Keywords： residual stress analytical model strain plastic cutting parameter

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A modified zone model for estimating equivalent room thermal capacity

Hua CHEN, Xiaolin WANG

Frontiers in Energy 2013, Volume 7, Issue 3, Pages 351-357 doi: 10.1007/s11708-013-0254-x

Abstract: The zone model has been widely applied in control analysis of heating, ventilation and air conditioning (HVAC) systems to achieve a high building efficiency. This paper proposed a modified zone model which is much simpler in the HVAC system simulation and has the similar accuracy to the complicated simulation model. The proposed model took into consideration the effect of envelop heat reservoir on the room indoor temperature by introducing the thermal admittance of the inner surfaces of the building enclosure. The thermal admittance for the building enclosure was developed based on the building thermal network analytical theory and transfer function method. The efficacy of the proposed model was demonstrated by comparing it with the complicated model — heat balance method (HTB2 program). The predicted results from the proposed model well agreed with those from the complicated simulation. The proposed model can then make the HVAC system dynamic simulation much faster and more acceptable for control design due to its simplicity and efficiency.

Keywords： room model thermal network analysis transfer function heating ventilation and air conditioning (HVAC) system simulation

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Distribution of background equivalent static wind load on high-rise buildings

Jianguo ZHANG , Ming GU ,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 3, Pages 241-248 doi: 10.1007/s11709-009-0036-z

Abstract: gust load envelope (GLE) methods, are verified in terms of their accuracy in describing the background equivalentBased on the results, formulae of the distribution of background equivalent static load on high-rise

Keywords： high-rise buildings along-wind cross-wind background equivalent static wind load close formulae

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Moving policy and regulation forward for single-use plastic alternatives

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 3, doi: 10.1007/s11783-021-1423-5

Abstract: The innovation of sustainable and environmentally friendly single-use plastic alternative materials andThe development of single-use plastic alternative products can be promoted fundamentally only by improving

Keywords： Single-use plastic alternatives Policy Regulation Sustainable development

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China’s new problems of food security revealed by the Food Equivalent Unit

Huilong LIN,Ruichao LI,Cangyu JIN,Chong WANG,Maohong WEI,Jizhou REN

Frontiers of Agricultural Science and Engineering 2014, Volume 1, Issue 1, Pages 69-76 doi: 10.15302/J-FASE-2014023

Abstract: Thus, not only grain for human consumption, but also animal foods have been integrated into the Food Equivalent

Keywords： food security nutrition security food equivalent unit grassland agriculture China

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Equivalent circuit and characteristic simulation of a brushless electrically excited synchronous wind

Hao WANG, Fengge ZHANG, Tao GUAN, Siyang YU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3, Pages 420-426 doi: 10.1007/s11465-017-0439-9

Abstract: In view of this problem, the equivalent circuit and electromagnetic torque expression of the BEESG areThe generator is simulated and tested experimentally using the established equivalent circuit model.Results show the validity of the equivalent circuit model.

Keywords： wind power brushless electrically excited synchronous generator hybrid rotor equivalent circuit

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Current scenario and challenges of plastic pollution in Bangladesh: a focus on farmlands and terrestrial

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 6, doi: 10.1007/s11783-023-1666-4

Abstract:

● A global snapshot of plastic waste generation and disposal is analysed

Keywords： Plastic waste Farmlands Terrestrial ecosystem Marine life

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Concepts and implementation of strain-based criteria in design codes for steel structures

Reidar BJORHOVDE

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3, Pages 210-216 doi: 10.1007/s11709-012-0165-7

Abstract: If stresses or forces are needed, these are easily determined by the value of the strain and the relevant

Keywords： steel stress-strain characteristics tension test strain design actual behavior improved design codes

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Generalized Plastic Mechanics and Its Application

Zheng Yingren,Kong Liang

Strategic Study of CAE 2005, Volume 7, Issue 11, Pages 21-36

Abstract:

The development of geotechnical plasticity is reviewed and some problems of applying the classic plasticBy giving up the three hypotheses, a generalized plastic potential theory can be obtained from solidmechanics directly, and then the traditional plastic mechanics can be changed to a more generalized plasticmechanics, namely generalized plastic mechanics (GPM).The yield surface theory, hardening laws and stress-strain relations of GPM are given, and a GPM including

Keywords： geotechnical plastic mechanics generalized plastic mechanics plastic potential yield surface constitutive

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Effects of natural zeolite and sulfate ions on the mechanical properties and microstructure of plastic

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 1, Pages 86-98 doi: 10.1007/s11709-021-0793-x

Abstract: strategic materials used in earth-fill embankment dams and in modifying and preventing groundwater flow is plastic

Keywords： plastic concrete sulfate resistance natural zeolite triaxial compression test SEM permeability

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Fault classification and reconfiguration of distribution systems using equivalent capacity margin method

K. Sathish KUMAR, T. JAYABARATHI

Frontiers in Energy 2012, Volume 6, Issue 4, Pages 394-402 doi: 10.1007/s11708-012-0211-0

Abstract: support vector machines (SVM) for prediction of fault classification and the use of the concept of equivalent

Keywords： support vector machines (SVM) structural risk minimization (SRM) equivalent capacity margin (ECM) restoration

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Preventing masks from becoming the next plastic problem

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1413-7

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Title Author Date Type Operation

Experimental and numerical investigations of the compressive behavior of carbon fiber-reinforced polymer-strengthened tubular steel T-joints

Peng DENG, Boyi YANG, Xiulong CHEN, Yan LIU

Journal Article

Demonstration of the Principle of Interaction between Plastic Volume Strain and Shear for Rock and Soil

Wang Jingtao

Journal Article

A model for creep life prediction of thin tube using strain energy density as a function of stress triaxialityunder quasi-static loading employing elastic-creep & elastic-plastic-creep deformation

Tahir MAHMOOD, Sangarapillai KANAPATHIPILLAI, Mahiuddin CHOWDHURY

Journal Article

The formation mechanism and the influence factor of residual stress in machining

Zhaoxu QI,Bin LI,Liangshan XIONG

Journal Article

A modified zone model for estimating equivalent room thermal capacity

Hua CHEN, Xiaolin WANG

Journal Article

Distribution of background equivalent static wind load on high-rise buildings

Jianguo ZHANG , Ming GU ,

Journal Article

Moving policy and regulation forward for single-use plastic alternatives