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RISElastic-Plastic Damage Model to Predict Pore-Pressure Effect on Concrete Behavior at Elevated Temperatures
Publisher: American Society of Civil Engineers
Abstract: Excessive internal pressure and high temperature are the key reasons for concrete spalling, and there are complex interactions between these two aspects. In the current research, a theoretical model to predict the pore ...
Mechanical Properties of the Interface between Reactive Powder Concrete and Aggregates at Different Temperatures
Publisher: American Society of Civil Engineers
Abstract: To analyze the effect of temperature on the failure of the interface between reactive powder concrete (RPC) and aggregate, a constitutive model based on the elastoplastic theory to describe both tension and shear failure ...
Thermodynamic-Based Elastoplasticity Multiaxial Constitutive Model for Concrete at Elevated Temperatures
Publisher: American Society of Civil Engineers
Abstract: In the current study, a multiaxial plastic-damage constitutive model for concrete at different temperatures is developed. The model is implemented in three-dimensional finite element analysis under fire conditions. Because ...
Development of a Variable Stiffness Over Tube Based on Low Melting Point Alloy for Endoscopic Surgery
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Instruments used in endoscopic surgery (colonoscopy surgery or natural orifice transluminal endoscopic surgery (NOTES)) are flexible to be advanced in human body. However, when the end of the instrument reaches the target, ...
Decadal Relationship between European Blocking and the North Atlantic Oscillation during 1978–2011. Part I: Atlantic Conditions
Publisher: American Meteorological Society
Abstract: oth the positive and negative phases of the North Atlantic Oscillation (NAO+ and NAO?, respectively) and atmospheric blocking in the Euro-Atlantic sector reflect synoptic variability over the region and thus are intrinsically ...
Decadal Relationship between European Blocking and the North Atlantic Oscillation during 1978–2011. Part II: A Theoretical Model Study
Publisher: American Meteorological Society
Abstract: n Part I of this study, it is revealed that decadal variations of European blocking, in its intensity, duration, and position, during 1978?2011 are modulated by decadal changes in the frequency of North Atlantic Oscillation ...
Regime Transition of the North Atlantic Oscillation and the Extreme Cold Event over Europe in January–February 2012
Publisher: American Meteorological Society
Abstract: n this paper, large-scale aspects for the onset of the extreme cold European weather event in January?February 2012 are investigated. It is shown that the outbreak of this extreme cold weather event may be attributed to ...
A Review of Recent Research on the Mechanical Behavior of Lead-Free Solders
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Due to the restriction of lead-rich solder and the miniaturization of electronic packaging devices, lead-free solders have replaced lead-rich solders in the past decades; however, it also brings new technical problems. ...
Unified Damage Constitutive Model for Fiber-Reinforced Concrete at High Temperature
Publisher: ASCE
Abstract: The mechanical behavior of fiber-reinforced concrete at high temperature is investigated, and a constitutive model considering the damage effect is developed based on the thermodynamic theory. By comparing the experimental ...
Increased Quasi Stationarity and Persistence of Winter Ural Blocking and Eurasian Extreme Cold Events in Response to Arctic Warming. Part II: A Theoretical Explanation
Publisher: American Meteorological Society
Abstract: AbstractIn Part I of this study, it was shown that the Eurasian cold anomalies related to Arctic warming depend strongly on the quasi stationarity and persistence of the Ural blocking (UB). The analysis here revealed that ...