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Development of realistic design fire time-temperature curves for the testing of cold-formed steel wall

Anthony Deloge ARIYANAYAGAM,Mahen MAHENDRAN

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 4,   Pages 427-447 doi: 10.1007/s11709-014-0279-1

Abstract: on the standard fire time-temperature curve.This paper presents the details of a research study aimed at developing realistic design fire curvesIt includes a review of the characteristics of building fires, previously developed fire time-temperatureThe paper highlights that real building fire time-temperature curves depend on the fuel load representingFinally, realistic design fire time-temperature curves simulating the fire conditions in modern residential

Keywords: fire safety     standard fire curve     realistic design fire time-temperature curves     light gauge steel frame(LSF) walls     fire resistance rating     fuel load    

Phase separation time/temperature dependence of thermoplastics-modified thermosetting systems

ZHANG Xiujuan, XU Yuanze, YI Xiaosu

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 3,   Pages 276-285 doi: 10.1007/s11705-008-0057-5

Abstract: (UCST) or lower critical solution temperature (LCST) were studied with emphasis on the temperature dependencyof the phase separation time and its potential application in the cure time-temperature processing windowWe found that the phase separation time/temperature relationship follows the simple Arrhenius equationWith the established phase separation time-temperature dependence relation, we can easily establish thewhole cure time-temperature transformation (TTT) diagram with morphology information which is a useful

Keywords: separation time-temperature     temperature dependency     cure-induced     separation activation     temperature    

Research on strength developing law during the curing of domestic epoxy asphalt mixture

Qian Zhendong,Wang Yaqi and Shen Jialin

Strategic Study of CAE 2012, Volume 14, Issue 5,   Pages 90-95

Abstract:

Based on the mechanism of strength, the reserved time and curing temperatureepoxy asphalt mixture are studied as the influencing factors of strength, and the range of reserved time

Keywords: epoxy asphalt     strength increasing     time-temperature condition     curing model    

Temperature and structural responses of a single-section utility tunnel throughout fire exposure

Yanmin YANG; Ying XIONG; Yongqing LI; Xiangkun MENG; Peng WANG; Tianyuan CAI

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 10,   Pages 1351-1364 doi: 10.1007/s11709-022-0857-6

Abstract: In this study, fire tests of four single-section scaled-down utility tunnels were conducted.By analyzing temperature and structural responses of the utility tunnel throughout the fire exposure,As the temperature increased, the temperature gradient along the thickness direction of the tunnel becameThe maximum temperature difference between the inner and outer wall surfaces was 531.7 °C.for the fire protection design and rescue of the utility tunnel.

Keywords: full lightweight concrete     construction methods     temperature response     structural response     fire test    

Study on Fire Design in Performance-based Design

Xu Liang,Zhang Heping,Yang Yun,Zhu Wuba

Strategic Study of CAE 2004, Volume 6, Issue 1,   Pages 64-67

Abstract:

Fire design is a key step in performance-based design.In this paper, several fire design methods have been introduced and fire design in a high-rack warehousehas been presented as an example to show how to apply fire design methods.

Keywords: fire design     fire growth curve     heat release rate    

Research on the Quasi-static and Dynamic Properties and Constitutive Relation of Carbon Fiber-reinforced Phenolic Composite

Zhang Tai,Wang Xiaojun,Wang Zhihai,Guo Yang,Wang Yuanbo

Strategic Study of CAE 2006, Volume 8, Issue 5,   Pages 63-68

Abstract: The results show that the material is rate-dependent and temperature-dependent.proposed and the coefficients in the constitutive equation are obtained by the experiment stress-strain curvesThe influence of temperature on the constitutive equation is remarkable, and its effects can be describedby the material parameters related to temperature.are similar, the time-temperature equivalent law is investigaled and the corresponding equivalent curve

Keywords: carbon fiber-reinforced phenolic composite     dynamic properties     viscoelasticity     constitutive model     time-temperature    

The Effect of Fire Source with Sand on the Temperature of Compartmental Fires

Song Hu,Yang Lizhong,Fan Weicheng,Weng Wenguo

Strategic Study of CAE 2002, Volume 4, Issue 5,   Pages 59-62

Abstract:

When compartment fire reaches flashover, the temperature rises rapidly, resulting in the ignitionIn this paper, the suppression method of adding sand into the fire source (gasoline) is discussed.Through assuminga transition layer below the surface of sand, the combustion process of the fire sourceIt is found that the time to the peak value of the upper layer temperature, the peak value itself andthe rate of extinguishment have obvious dependence on the volume ratio of sand to the fire source (gasoline

Keywords: fire source with sand     compartmental fire     flashover    

Applicability of the Arrhenius model for Ammonia Oxidizing Bacteria subjected to temperature time gradients

Alberto MANNUCCI,Giulio MUNZ,Gualtiero MORI,Claudio LUBELLO,Jan A. OLESZKIEWICZ

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 6,   Pages 988-994 doi: 10.1007/s11783-014-0751-0

Abstract: for Ammonia Oxidizing Bacteria (AOB) subjected to temperature time gradients through continuous titrimetrictime gradients.titrimetric reactor in the temperature range 10°C–20°C.The dependence of growth kinetics on temperature time gradients and the range of applicability of Arrheniusmodel for temperature dependency of AOB growth kinetics were assessed.

Keywords: nitrification rate     temperature effect     continuous titrimetric tests     time-gradient temperature variations    

Experimental Study on Temperature Distribution and Response Behaviors of Steel Element under Corner Fire

Chen Changkun,Yao Bin,Yang Yun,Cai Xin,Zhang Heping,Wan Yutian

Strategic Study of CAE 2005, Volume 7, Issue 9,   Pages 70-75

Abstract: In the experiment, the heat release rate and temperature field of the fire, temperature and deflectionEffects of the temperature elevation and distribution of the steel element under corner fire conditionsalong with the fire growth on the deflection were analyzed.Indeed, this non-uniform temperature distribution caused by the corner fire is more dangerous to thefire safety of steel elements than the even case under same fire size.

Keywords: ISO9705 Room/Corner Fire Test Rig     steel element     corner fire     temperature distribution    

Real-time tool condition monitoring method based on temperature measurement and artificial neural network

Frontiers of Mechanical Engineering doi: 10.1007/s11465-021-0661-3

Abstract: Here, a real-time tool condition monitoring method integrated in an in situ fiber optic temperatureintermittent cutting experiment is carried out, verifying that the apparatus can capture the rapid but slight temperatureFurthermore, an application program with a graphical user interface is constructed to present real-time

Keywords: tool condition monitoring     cutting temperature     neural network     learning rate adaption    

Design and analysis of electrothermal metasurfaces

Xiu LIU, Zhuo LI, Zexiao WANG, Hyeong Seok YUN, Sheng SHEN

Frontiers in Energy 2023, Volume 17, Issue 1,   Pages 134-140 doi: 10.1007/s11708-022-0841-9

Abstract: focused on metasurfaces with infinite unit cells, in practice, the finite-size effect can be a critical designfactor for developing thermal metasurfaces with fast response and broad temperature uniformity.More importantly, such a small footprint due to the finite array size yields response time down to adirection perpendicular to the axis of nanorods is found to be insensitive to the resonance and response time; thus, providing a tunable aspect ratio that can boost the temperature uniformity in the sub-Kelvin

Keywords: modulated thermal infrared radiation     metasurface     nanosecond response time     sub-Kelvin temperature uniformity    

Effect analysis of fire location on fire growth in large space

Shi Long,Zhang Ruifang,Xie Qiyuan,Fu Lihua

Strategic Study of CAE 2008, Volume 10, Issue 11,   Pages 37-42

Abstract:

Fire design is the basis of quantitative evaluation in performance-basedfire design, which includes the determination of fire location and heat release rate (HRR)., fire grows faster with HRR peak values are larger and the time of attain HRR peak value earlier andduration time are shorter than others.But other rules, which contain fire growth and the correlative time, when considering fire radiation

Keywords: fire growth     fire design in large space     fire location     fire radiation model     smoke radiation model    

Performance-based Fire Protection Designs and Analyses for Occupant Evacuations in Super-long Road Tunnels

Chen Changkun,Xu Zhisheng

Strategic Study of CAE 2007, Volume 9, Issue 9,   Pages 78-83

Abstract:  Influences of various fire locations,  spacing between and widths of transverse passageways Results show that the available and the required safe evacuation time (ASET and RSET,  respectively Peaks occur on the time curves of occupant evacuations at the gate of each transverse passageway And the performance-based fire protection designs for occupant evacuations in super-long tunnelsshould consider the influences of fire source locations on occupant loads and the ASET at evacuation

Keywords: evacuation     fire     super-long tunnel     transverse passageway     performance- based fire protection design    

Intermediate HSS bracing members during seismic excitations: modeling, design, and behavior

Madhar HADDAD

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 1,   Pages 148-162 doi: 10.1007/s11709-016-0375-5

Abstract: Finite element modeling of the HSS braces that utilizes the true stress-strain curves produces hysteresisTrue stress-strain curves are obtained from coupon tests or stub-column tests while utilizing an exponentialIn the current study, the true stress-strain curves are directly obtained from tests on stub-columnsResults indicate that the stress-strain curves for these braces are not unique.

Keywords: HSS     FEM     stress-strain curves     damage model    

Evaluating the short-term effect of ambient temperature on non-fatal outdoor falls and road traffic injuriesamong children and adolescents in China: a time-stratified case-crossover study

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 9, doi: 10.1007/s11783-023-1705-1

Abstract:

● A study assessing the temperature-injury relationship was conducted

Keywords: Ambient temperature     Fall     Road traffic injury     Student     China    

Title Author Date Type Operation

Development of realistic design fire time-temperature curves for the testing of cold-formed steel wall

Anthony Deloge ARIYANAYAGAM,Mahen MAHENDRAN

Journal Article

Phase separation time/temperature dependence of thermoplastics-modified thermosetting systems

ZHANG Xiujuan, XU Yuanze, YI Xiaosu

Journal Article

Research on strength developing law during the curing of domestic epoxy asphalt mixture

Qian Zhendong,Wang Yaqi and Shen Jialin

Journal Article

Temperature and structural responses of a single-section utility tunnel throughout fire exposure

Yanmin YANG; Ying XIONG; Yongqing LI; Xiangkun MENG; Peng WANG; Tianyuan CAI

Journal Article

Study on Fire Design in Performance-based Design

Xu Liang,Zhang Heping,Yang Yun,Zhu Wuba

Journal Article

Research on the Quasi-static and Dynamic Properties and Constitutive Relation of Carbon Fiber-reinforced Phenolic Composite

Zhang Tai,Wang Xiaojun,Wang Zhihai,Guo Yang,Wang Yuanbo

Journal Article

The Effect of Fire Source with Sand on the Temperature of Compartmental Fires

Song Hu,Yang Lizhong,Fan Weicheng,Weng Wenguo

Journal Article

Applicability of the Arrhenius model for Ammonia Oxidizing Bacteria subjected to temperature time gradients

Alberto MANNUCCI,Giulio MUNZ,Gualtiero MORI,Claudio LUBELLO,Jan A. OLESZKIEWICZ

Journal Article

Experimental Study on Temperature Distribution and Response Behaviors of Steel Element under Corner Fire

Chen Changkun,Yao Bin,Yang Yun,Cai Xin,Zhang Heping,Wan Yutian

Journal Article

Real-time tool condition monitoring method based on temperature measurement and artificial neural network

Journal Article

Design and analysis of electrothermal metasurfaces

Xiu LIU, Zhuo LI, Zexiao WANG, Hyeong Seok YUN, Sheng SHEN

Journal Article

Effect analysis of fire location on fire growth in large space

Shi Long,Zhang Ruifang,Xie Qiyuan,Fu Lihua

Journal Article

Performance-based Fire Protection Designs and Analyses for Occupant Evacuations in Super-long Road Tunnels

Chen Changkun,Xu Zhisheng

Journal Article

Intermediate HSS bracing members during seismic excitations: modeling, design, and behavior

Madhar HADDAD

Journal Article

Evaluating the short-term effect of ambient temperature on non-fatal outdoor falls and road traffic injuriesamong children and adolescents in China: a time-stratified case-crossover study

Journal Article