29 Result(s)
within
**-**a Ding
Engineering
Characterization and Evaluation of Materials
Civil Engineering
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Article
Viscoplastic flow due to penetration: a free boundary value problem
Under the action of a pressure gradient, a solid body B penetrates into another body. Body B is assumed to be of an incompressible, viscoplastic, Bingham material. As a first model, the problem may be treated one...
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Chapter and Conference Paper
Creep of Metals Under Variable Complex Loadings
In recent years, numerous material models and experimental observations on the inelastic behavior of metals at elevated temperatures have been proposed and reported. Despite their various forms, the models can...
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Article
Transition elements matching the near crack-tip strain field
New transition elements used with the collapsed triangular singular elements are constructed by using the improved isoparametric transformations. Without 1/r singular terms, the new transition elements' strain fi...
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Article
Description of two-dimensional spallation in pure copper
A new ductile dynamic failure model, based on a porous element consisting of a single spherical void of radius a in a sphere of radius b subject to internal pressure Pg and external stress σr = − αP + (α − 1) Pg ...
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Article
A model of plastic flow enhanced crack growth dynamics
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Article
Optimization of the adhesive joint Iosipescu specimen for pure shear test
This paper reviews some of the difficulties encountered in achieving a uniform stress distribution within the adhesive layer of bonded Iosipescu shear test specimens. The asymptotic singular stress field at th...
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Article
A penny-shaped crack in piezoelectrics: resolved
This paper reconsiders the problem of a penny-shaped crack in a piezoelectric medium under uniform mechanical as well as electric loadings applied at infinity (mode I). The analysis is based on the general sol...
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Chapter
Polypropylene Degradation and Durability Estimates Based on the Master Curve Concept
Material degradation and life prediction studies need to overcome numerous challenges. Among the most formidable is the long term, real time data generation. The typical experimental time span seldom goes beyo...
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Article
Anti-plane problem of periodic interface cracks in a functionally graded coating-substrate structure
In this paper, the interface cracking between a functionally graded material (FGM) and an elastic substrate is analyzed under antiplane shear loads. Two crack configurations are considered, namely a FGM bonded...
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Article
Mode-I crack problem for functionally graded layered structures
This paper deals with two bonded functionally graded finite strips with two collinear cracks. Different layers may have different nonhomogeneity properties in the structure. A bi-parameter exponential function...
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Article
Study of a Video Image Fire Detection System for Protection of Large Industrial Applications and Atria
This paper presents the results of full-scale fire and environmental tests to study the use of a newly developed video image detection (VID) system for the protection of large industrial applications and atria...
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Article
A simplified hardening cohesive zone model for bondline thickness dependence on adhesive joints
In this paper, a tri-material adhesive system with nonlinear cohesive springs embedded between two elasto-plastic adhesive layers is proposed to predict the adhesive thickness effects on the fracture energy of...
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Article
Experimental Study of Elevator Loading and Unloading Time During Evacuation in High-Rise Buildings
To date, there are various types of elevators, such as evacuation elevators, that are being utilized during high-rise building evacuations in several countries, in accordance with their respective building cod...
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Article
Experimental Study on Fire Behaviors of Kerosene/Additive Blends
The widely used fuels in practical are blended fuel whose combustion characteristics is more complex than those of the single-component fuel in real fire scenarios. The fire behaviors of aviation kerosene/diet...
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Article
Numerical Investigation on the Influence of Length–Width Ratio of Fire Source on the Smoke Movement and Temperature Distribution in Tunnel Fires
The behaviors hot and toxic smoke in tunnel fires is important to the engineering applications of fire protection systems. The shapes of fire source may affect the characteristics of smoke movement in tunnels....
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Article
Combustion Characteristic of Commercial Flame-Retardant Natural Rubber Under Low Oxygen Atmosphere
Besides combustion behavior under normal atmosphere, combustion behavior under special environment is also an important aspect for safety operation of China high-speed train. The commercial flame-retardant nat...
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Article
Open AccessExperimental Study of Egress Selection Behavior Between Stairs and Elevators During High-Rise Building Evacuation
How do evacuees behave and what factors influence their egress selection behavior of stairs or an elevator during a high-rise building evacuation? These issues remain unclear given a paucity of research. In th...
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Article
Numerical Investigation of External Wind Effect on Smoke Characteristics in a Stairwell
Fire-induced smoke is the most lethal threat to the residents in high-rise buildings and it is necessary to understand the smoke rising characteristics for the engineering applications of smoke control system....
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Article
Unexpected Oscillations in Fire Modelling Inside a Long Tunnel
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Article
Investigation on the Tunnel Curvature Effect upon the Ceiling Temperature of Tunnel Fires: A Numerical Simulation
This paper investigates the temperature distribution in curved tunnels through numerical simulation method. Applying in the Large Eddy Simulation by Fire Dynamic Simulator, models of tunnel fire with different...
