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Damage detection in beam-like structures using static shear energy redistribution

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 12,   Pages 1552-1564 doi: 10.1007/s11709-022-0903-4

Abstract: In this study, a static shear energy algorithm is presented for the damage assessment of beam-like structuresAccording to the energy release principle, the strain energy of a damaged element suddenly changes whenstructural damage occurs.Therefore, the change in the static shear energy is employed to determine the damage locations in beam-likeThe advantage of using shear energy as opposed to total energy is that only a few deflection data points

Keywords： damage detection     beam structure     strain energy     static displacement variation     energy damage index    

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Multiple damage detection in complex bridges based on strain energy extracted from single point measurement

Alireza ARABHA NAJAFABADI, Farhad DANESHJOO, Hamid Reza AHMADI

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 3,   Pages 722-730 doi: 10.1007/s11709-020-0624-5

Abstract: Strain Energy of the structure can be changed with the damage at the damage location.The accurate detection of the damage location using this index in a force system is dependent on theThen two damage detection indicators were developed based on strain energy variations.Damage was simulated by decreasing stiffness at different sections of the deck.Indicators of the strain energy extracted from displacement influence line and the strain energy extracted

Keywords： damage detection     strain energy     influence line     complex bridges     rotation displacement    

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Energy consumption of 270 schools in Tianjin, China

Jincheng XING,Junjie CHEN,Jihong LING

Frontiers in Energy 2015, Volume 9, Issue 2,   Pages 217-230 doi: 10.1007/s11708-015-0352-z

Abstract: With the rapid development of education cause, the increasing energy consumption of school buildingsThis paper presented an analysis of energy consumption of 270 schools located in the city of Tianjin,Comparing to the schools without a canteen, the non-heating energy consumption index of schools withFurthermore, clustering of different energy sources, the total primary energy consumption indexes wereSpace heating energy consumption accounted for approximately 64%–79% of the total primary energy consumption

Keywords： schools     energy consumption index     primary energy     energy saving     regression analysis    

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Study on online monitoring method for flood discharge structure damage based on Hilbert-Huang Transform

Lian Jijian,Li Chengye,Liu Fang,Ma Bin

Strategic Study of CAE 2011, Volume 13, Issue 12,   Pages 38-44

Abstract: characteristics analysis and signal processing, an online monitoring method for flood discharge structure damageFirstly, after obtaining the HHT energy spectrum of measured responses, the energy distribution vectorFinally, having been calculating the anomaly indexes of adjacent time periods, the damage online monitoringguide wall demonstrate that the anomaly indexes mentioned above can accurately identify the structure damageHowever, the further research for estimating the damage location and degree need to be developed in the

Keywords： flood discharge structure     Hilbert-Huang Transform     the energy distribution vector     anomaly index     warning    

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A deep feed-forward neural network for damage detection in functionally graded carbon nanotube-reinforcedcomposite plates using modal kinetic energy

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1453-1479 doi: 10.1007/s11709-021-0767-z

Abstract: This paper proposes a new Deep Feed-forward Neural Network (DFNN) approach for damage detection in functionallythe proposed approach, the DFNN model is developed based on a data set containing 20 000 samples of damageThe elemental modal kinetic energy (MKE) values, calculated from natural frequencies and translationalnodal displacements of the structures, are utilized as input of the DFNN model while the damage locationsObtained results indicate that the proposed DFNN model is able to give sufficiently accurate damage detection

Keywords： damage detection     deep feed-forward neural networks     functionally graded carbon nanotube-reinforced compositeplates     modal kinetic energy    

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Aseismic smart building isolation systems under multi-level earthquake excitations: Part II, energy-dissipationand damage reduction

Min-Ho CHEY,J. Geoffrey CHASE,John B. MANDER,Athol J. CARR

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 3,   Pages 297-306 doi: 10.1007/s11709-015-0308-8

Abstract: companion paper), this following study verifies the control effects of the systems from the view point of energydissipation and damage level metrics.Performance comparisons are conducted on statistically calculated story/structural hysteretic energyand story/structural damage demands over realistic suites of earthquake ground motion records, representingpromise for applications of resettable device, offering advantages over passive systems in the consistent damage

Keywords： smart building isolation     story and structural     energy-dissipation     damage assessment    

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Study on Urban Energy Strategy Development Index Evaluation System

Li Shunxin,Gao Feng,Zhang Jing,Zhang Xuan,Zhao Min, Yue Yunli

Strategic Study of CAE 2018, Volume 20, Issue 3,   Pages 117-124 doi: 10.15302/J-SSCAE-2018.03.017

Abstract: puts forward six principles for index design, and constructs a two-grade index system for developmentThe two-grade index system introduces new revolution, new technologies, new formats and new businessmodels into the energy system, and covers eleven aspects: energy supply, energy consumption, electricThis index system adapts to decisions on development of the urban energy strategy in China.For the evaluation and prediction of energy strategy in 2017, 2020 and 2030, this index system is applied

Keywords： urban development     energy strategy     index evaluation    

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An efficient two-stage approach for structural damage detection using meta-heuristic algorithms and group

Hamed FATHNEJAT, Behrouz AHMADI-NEDUSHAN

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 4,   Pages 907-929 doi: 10.1007/s11709-020-0628-1

Abstract: In this study, the performance of an efficient two-stage methodology which is applied in a damage detectionIn the first stage, in order to locate the damage accurately, the performance of the modal strain energybased index for using different numbers of natural mode shapes has been evaluated using the confusionIn the second stage, to estimate the damage extent, the sensitivity of most used modal properties duestrain energy (MNMSE) of suspected damaged elements.

Keywords： two-stage method     modal strain energy     surrogate model     GMDH     optimization damage detection    

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The Review of Ascertainable Fatigue Cumulative Damage Rule

Yang Xiaohua,Yao Weixing,Duan Chengmei

Strategic Study of CAE 2003, Volume 5, Issue 4,   Pages 81-87

Abstract:

Famous Miner - Palmgren linear damage rule has been presented for 70 years.Fatigue cumulative damage rule has been perfecting and developing.Based on the characteristics of fatigue damage and cumulative damage rule, this paper divided the rulesOne is linear cumulative damage rule. The other is non-linear cumulative damage rule (NLCDR).the effects of load sequencing on the fatigue life; NLCDR based on energy rule.

Keywords： fatigue     linear and nonlinear     cumulative damage     damage mechanics     energy    

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Early-life famine exposure, adulthood obesity patterns, and risk of low-energy fracture

Frontiers of Medicine doi: 10.1007/s11684-023-1023-9

Abstract: but the association of early-life undernutrition combined with adulthood obesity patterns with low-energyGeneral obesity was assessed using the body mass index (BMI), and abdominal obesity was evaluated withLow-energy fracture was defined as fracture occurring after the age of 40 typically caused by falls fromfamine exposure interacts with adulthood general obesity and significantly increases the risk of low-energy

Keywords： famine     obesity     body mass index     waist-to-hip ratio     low-energy fracture    

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An Algorithm to compute damage from load in composites

Cyrille F. DUNANT, Stéphane P. A. BORDAS, Pierre KERFRIDEN, Karen L. SCRIVENER, Timon RABCZUK

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 180-193 doi: 10.1007/s11709-011-0107-9

Abstract: We present a new method to model fracture of concrete based on energy minimisation.In this first step, the alkali-silica reaction is taken into account through damage mechanics thoughWe use a non-local damage model that ensures the well-posedness of the boundary value problem (BVP).In contrast to existing methods, the interactions between degrees of freedom evolve with the damage evolutions

Keywords： Concrete     damage     prediction     modelling     energy minimisation     ASR    

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Comparison and analysis of energy consumption of energy-efficient office buildings in different climate

Ke ZHANG, Neng ZHU

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 399-405 doi: 10.1007/s11708-013-0260-z

Abstract: The purpose of this paper is to analyze the energy consumption (EC) and find out the determining factorsof energy-efficient office building cases according to specific case studies in typical cities of differentThe analysis indicates that the energy consumption index (ECI) of these four cases ranges from 41.06

Keywords： energy-efficient building     breakdown energy consumption (EC)     energy consumption index (ECI)     different    

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Toward energy finance market transition: Does China’s oil futures shake up global spots market?

Frontiers of Engineering Management   Pages 409-424 doi: 10.1007/s42524-022-0207-3

Abstract: The country is achieving a milestone in its transition to energy finance market internationalization.

Keywords： China’s oil futures     price information spillover     price co-movement     BK spillover index     BDECO model    

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Damage assessment of laminated composite beam structures using damage locating vector (DLV) method

T. VO-DUY,N. NGUYEN-MINH,H. DANG-TRUNG,A. TRAN-VIET,T. NGUYEN-THOI

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 4,   Pages 457-465 doi: 10.1007/s11709-015-0303-0

Abstract: In this paper, the damage locating vector (DLV) method using normalized cumulative energy ( ) is employedto locate multiple damage sites in laminated composite beam structures.Numerical simulations of two laminated composite beams are employed to investigate several damage scenarios

Keywords： normalized cumulative energy     structural health monitoring (SHM)     damage locating vector method (DLV)     laminated    

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The analysis of specific energy applied in Bohai Strait tunnel during TBM construction

Gao Pan,Zou Chong

Strategic Study of CAE 2013, Volume 15, Issue 12,   Pages 73-79

Abstract: between the Clem Jones tunnel in Australia and the Bohai Strait tunnel,and introduced the specific energyresearchers made the analysis and forecasted about the TBM's penetration rate using the specific energyThis paper concluded that the specific energy can be used in the Bohai Strait tunnel as well as the Clem

Keywords： TBM     specific energy     drilling rate index     penetration rate    

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Title Author Date Type Operation

Damage detection in beam-like structures using static shear energy redistribution

Journal Article

Multiple damage detection in complex bridges based on strain energy extracted from single point measurement

Alireza ARABHA NAJAFABADI, Farhad DANESHJOO, Hamid Reza AHMADI

Journal Article

Energy consumption of 270 schools in Tianjin, China

Jincheng XING,Junjie CHEN,Jihong LING

Journal Article

Study on online monitoring method for flood discharge structure damage based on Hilbert-Huang Transform

Lian Jijian,Li Chengye,Liu Fang,Ma Bin

Journal Article

A deep feed-forward neural network for damage detection in functionally graded carbon nanotube-reinforcedcomposite plates using modal kinetic energy

Journal Article

Aseismic smart building isolation systems under multi-level earthquake excitations: Part II, energy-dissipationand damage reduction

Min-Ho CHEY,J. Geoffrey CHASE,John B. MANDER,Athol J. CARR

Journal Article

Study on Urban Energy Strategy Development Index Evaluation System

Li Shunxin,Gao Feng,Zhang Jing,Zhang Xuan,Zhao Min, Yue Yunli

Journal Article

An efficient two-stage approach for structural damage detection using meta-heuristic algorithms and group

Hamed FATHNEJAT, Behrouz AHMADI-NEDUSHAN

Journal Article

The Review of Ascertainable Fatigue Cumulative Damage Rule

Yang Xiaohua,Yao Weixing,Duan Chengmei

Journal Article

Early-life famine exposure, adulthood obesity patterns, and risk of low-energy fracture

Journal Article

An Algorithm to compute damage from load in composites

Cyrille F. DUNANT, Stéphane P. A. BORDAS, Pierre KERFRIDEN, Karen L. SCRIVENER, Timon RABCZUK

Journal Article

Comparison and analysis of energy consumption of energy-efficient office buildings in different climate

Ke ZHANG, Neng ZHU

Journal Article

Toward energy finance market transition: Does China’s oil futures shake up global spots market?

Journal Article

Damage assessment of laminated composite beam structures using damage locating vector (DLV) method

T. VO-DUY,N. NGUYEN-MINH,H. DANG-TRUNG,A. TRAN-VIET,T. NGUYEN-THOI

Journal Article

The analysis of specific energy applied in Bohai Strait tunnel during TBM construction

Gao Pan,Zou Chong

Journal Article