Division of Mechanical Sciences: Recent submissions
Now showing items 21-40 of 2365
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Experiments and modeling studies on the gasification of wood-char
In this chapter, the experimental data on the reactivity of wood char spheres with steam at high temperatures are presented. The earlier model is extended to include both kinetic and transport aspects of char-steam ... -
Extending PNQ6X1 to quadrilaterals with curved edges
Extension of Quadrilateral Finite Elements for Arbitrarily Curved Edges Abstract Introduction Two-dimensional finite elements have been in existence for almost half a century. Despite their drawbacks, they have served ... -
Numerical study of constraint effects on dynamic ductile crack initiation
Dynamic Loading Effects on Fracture Toughness and Crack Tip Constraint in Engineering Alloys Abstract and Synopsis Introduction In many engineering applications, materials are subjected to highly dynamic loading. ... -
Wear and seizure of aluminium - silicon alloys in dry sliding against steel
Aluminium-Silicon cast alloys have gained popularity as compared to iron-based materials as a candidate for internal combustion engine components such as cylinder liners, pistons and cylinder heads. This is primarily because ... -
Form feature generation model for features technology
The essence of CAD driven automation lies in modelling the interaction between geometry and domain knowledge. The concept of features and the area of features technology evolved to model this interaction. Feature definitions ... -
Dynamic crack growth at a ductile-brittle interface
In recent years, there has been increasing technological application of multi-phase materials like composites, cermets and polycrystalline alloys. These materials fail, most commonly, by debonding of the constituent phases ... -
Structure and properties of wear resistant high chromium cast irons
The cost of replacing worn parts in mining equipment, cement plants, thermal power plants and machinery poses a continuous challenge to materials technologists. Components designed for such applications must possess adequate ... -
Structure - property correlation of cast iron by FEM
Correlation of the structure of cast iron with its mechanical properties through the assessment of micro stresses has been addressed in this thesis. The large variation in the shape-spherical to flake-size, and distribution ... -
Heat transfer from flat plates to an air let
Heat transfer from an electrically heated flat plate to an air jet at different angles of attack was investigated. Brass plates of diameters 1 in., 2 in., 4 in., 5 in., 6 in., and 8 in. were used in the study. The jet ... -
Strain Rate Response and its effect in plane strain abrasion of metals by a wedge
Understanding the wear process is important for preventing loss of material in industry as well as in everyday applications. Many models are available to calculate the wear rate. The simplest models are based on the ... -
Thermodynamic studies on selected ceramic oxide systems.
The everincreasing demand for new materials with improved physical, chemical and mechanical properties for applications in hightechnology areas at elevated temperatures has stimulated interest in systematic investigations ... -
Electron microscopy of quasicrystalline phases in aluminium-
The discovery of icosahedral quasicrystals in rapidly solidified Al-Mn alloys has generated considerable interest among solidstate scientists, since the icosahedral pointgroup symmetry (m35) is incompatible with translational ... -
Simulation of microstructural evolution during grain growth and recrystallization
The microstructure of a material is an important factor in determining many of its properties. The prediction of microstructural evolution in materials, however, has not been easy due to the complexity of grain interactions. ... -
Some aspects of the deformation characteristics of AUSTENTIC stainless relaxation
A study of the elevated temperature deformation characteristics of fcc alloys is of paramount importance in view of their widespread applications as high temperature structural components. Austenitic stainless steel grade ... -
Theromodynamic investigation on some alloy systems of interest in metollothermic reductins by vapour pressure measurment and thermogravemetry
The thermodynamic properties of pure liquid Mg and liquid Mg-Al and Mg-Cu alloys have been determined by vapour pressure measurement using the boiling point method, and those of the solid USi phase by measurement of ... -
Fracture mechanics study of corrosion fatigue
In this investigation, corrosion fatigue crack growth studies were conducted on 7075-Alclad on an MTS closed-loop, servo-controlled hydraulic testing machine, where the maximum and minimum loads were regulated and the ... -
Impression creep and the mechanism of high temperature deformation in zino and cadmium
The plastic deformation behavior of two CPH metals, cadmium and zinc, was investigated in the range 300-500 K with the following objectives: (i) To study the phenomenon of impression creep and compare the impression ... -
Dynamic stress corrosion cracking studies in aged ai-5zn-4mg and ai-5zn-4mg-o-o1 alloys
Stress corrosion cracking (SCC) refers to the spontaneous failure of engineering materials under the combined action of a tensile stress and an environment. Age-hardenable high-strength aluminium-based alloys, especially ... -
Role of Second Phase in the Microstructural Development and Creep Deformation of Alumina based Composites
High Temperature Deformation Behavior of Alumina-Based Ceramic Composites with Second Phase Additions Abstract and Synopsis Introduction Ceramics hold considerable promise as structural materials for high-temperature ... -
Processing and characterisation of cast 6061 AI-TiN metal matrix composites
A great deal of attention has been focused on the development of Al composites with a wide range of reinforcements. Various ceramics such as SiC, TiC, BC, TiB, SiN, and AlO in different morphologies have been extensively ...