WorldCat Identities

Chandra, N.

Overview
Works: 30 works in 65 publications in 2 languages and 303 library holdings
Genres: Conference papers and proceedings  Academic theses 
Roles: Author, Editor, Thesis advisor, Other, Opponent
Publication Timeline
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Most widely held works by N Chandra
Superplasticity in advanced materials, ICSAM-2000 : proceedings of the 2000 International Conference on Superplasticity in Advanced Materials (ICSAM-2000) held at Sheraton International Resort, Orlando [Florida], USA during August 1-4, 2000 by International Conference on Superplasticity in Advanced Materials( Book )

13 editions published between 2000 and 2001 in English and held by 78 WorldCat member libraries worldwide

Advances in finite deformation problems in materials processing and structures : presented at the Winter Annual Meeting of the American Society of Mechanical Engineers, Atlanta, Georgia, December 1-6, 1991 by American Society of Mechanical Engineers( Book )

7 editions published in 1991 in English and held by 76 WorldCat member libraries worldwide

Tabulation of hybrid theory calculated e-N₂ vibrational and rotational cross sections by N Chandra( Book )

3 editions published in 1976 in English and held by 57 WorldCat member libraries worldwide

Cohesive Zone Approach to Multiscale Modeling of Nanotube Reinforced Composites( Book )

4 editions published between 2004 and 2007 in English and held by 4 WorldCat member libraries worldwide

This one year effort demonstrated that cohesive zone model can be adapted within a multi-scale approach to study the fracture behavior of carbon-nanotube (CNT) based polymer based composites. Some of the fundamental cohesive zone parameters like traction and displacement were computed using molecular dynamics and the results used in a non-linear finite element method to study the fracture characteristics of the CNT based composites. A new type of cohesive zone finite element was developed, and the element showed both numerical stability and accuracy. It was clearly shown using the developed method that unless the interface strength and fracture characteristics are properly controlled, the full capability of CNTs in composites could not be exploited. For example, simple carbon nano-fibers (a few micron in diameter) will outperform ONT based composites, if the former has better interface thermo-mechanical properties than the latter. Controlling atomic scale interfaces is however much more difficult and follow up work showed novel neutron bombardment and selective defect creation can achieve this. The present work paved way for breakthroughs in processing
Design and analysis of tube-plate joints by N Chandra( Book )

2 editions published in 1992 in English and held by 3 WorldCat member libraries worldwide

Process modeling of SPF processes by N Chandra( Book )

2 editions published in 1989 in English and held by 3 WorldCat member libraries worldwide

Effect Processing on the Evolution of Interfaces Metal Matrix Composites( Book )

2 editions published in 2000 in English and held by 2 WorldCat member libraries worldwide

The issues in this research focused on the understanding the chemical evolution (diffusional) process at the interface, developing a mechanistic model or an interface based on stress or energy failure criterion, and studying the effect of interface properties on the performance of the composites. The approach involved both experimental and computational components, a link between the evolution of chemistry and geometry of the reaction zone and the interfacial properties. Microstructural studies reveal that reaction growth is due to transformation of both coating and the matrix. Push-out tests conducted on heat treated specimens reveal that the effect of thermal exposure on interfacial properties is predominantly due to exposure temperature. Time of exposure is found to have only a secondary effect. The push out data was used indirectly to evaluate both strength and toughness properties of the interfaces. The local shear strength of Ti-6A14V/SCS-6 interfaces was found to be of the order og 450 Mpa, in comparison with much lower (120 Mpa) average shear strength reported elsewhere. Also a fracture toughness of 50 Mpa m 1/2 was found in this research . Also the fracture toughness values remain more or less constant for normal use temperatures in the range of 450 to 700 deg C
Experimental Characterization and Modeling of Damage in Composites Under Ballistic Impact( Book )

2 editions published in 2003 in English and held by 2 WorldCat member libraries worldwide

The primary focus of our research is to understand the ballistic behavior of composites. It is shown that the shock response of composites is quite different from that of the metals, and the presence of heterogeneous interfaces in composites can be attributed to this fact. The interfaces cause multiple scattering, and the magnitude of scattering depends on the level of heterogeneity as indicated by impedance mismatch. In this research work we have developed an analytical model for the plate impact of a bilaminate material system by considering explicitly material heterogeneity and the equation of state. Comparison of the model with experimental data and numerical results show good agreement. Further, a comprehensive analysis of cohesive zone models has been carried out to study its applicability to represent damage and fracture from a micromechanical perspectives. Thus cohesive zone models can be used within the framework of continuum mechanics to analyze damage in the composites under ballistic loading conditions
Design of a lunar transportation system by N Chandra( Book )

1 edition published in 1988 in English and held by 2 WorldCat member libraries worldwide

Deformation mechanisms at atomic scale : role of defects in thermomechanical behavior of materials by Sirish Namilae( )

2 editions published in 2004 in English and held by 2 WorldCat member libraries worldwide

Micromechanics based modeling of high velocity impact response of layered heterogeneous material systems by Xianglei Chen( )

1 edition published in 2004 in English and held by 2 WorldCat member libraries worldwide

Micromechanical Modeling of Superplastic Materials( Book )

2 editions published in 1999 in English and held by 2 WorldCat member libraries worldwide

In this work, superplastic deformation were studied at atomistic, mesoscopic and macroscopic levels with a special focus on the former two. At the atomistic level, we studied the energy and structure of symmetric tilt boundaries and examined the energy barriers during grain boundary sliding of Aluminum bicrystal. We also studied the effect of temperature and impurity atoms on the structure, energy and deformation of grain boundary sliding. At the mesoscopic level, polycrystal based micromechanical model was developed and append to conventional single-phase, dual-phase and high strain rate superplastic materials. This model has successfully predicted the flow-stress vs. strain rate and strain-rate sensitivity of conventional single-phase (7475 aluminium alloy, 2090-OE16 Al-Li alloy, and Al-Zn-Mg-Cu alloy), dual-phase (Ti-6Al-4V and Zn-22Al), and high strain-rate materials (IN905XL, IN9021 and IN90211). At macroscopic level, the effect of the state of strain (uniaxial or biaxial) on the origin and evolution of cavities is Al based alloys were studied. This model was also integrated with finite element code. Most of the results are available at our web site: http://amml.eng.fsu.edu. In addition, an integrated web based simulation of SP process modeling was developed and implemented
Composition of normal urine in students of the University of malaya by N Chandra( Book )

1 edition published in 1967 in English and held by 1 WorldCat member library worldwide

Ram lakhan ;Janbaaz ;Tezaar produced and directed by Feroz Khan( Visual )

1 edition published in 2008 in Hindi and held by 1 WorldCat member library worldwide

Tables of the coefficients A( Book )

2 editions published in 1974 in English and held by 1 WorldCat member library worldwide

E-commerce : the new tax frontier by N Chandra( )

in English and held by 1 WorldCat member library worldwide

With the growth of e-commerce, traditional concepts and principles of taxation are proving to be inadequate. The residence and source principles cannot be applied with certainty in a borderless marketplace; the lines between business and royalty or service income become blurred; and enforcement problems involving the identity and location of taxpayers arise
ICSAM : international symposium on superplasticity in advanced materials : proceedings, 2000, Orlando, USA, August 1-4( Book )

1 edition published in 2001 in English and held by 1 WorldCat member library worldwide

Finite element analysis and design of 3-dimensional superplastic sheet forming processes by Suresh Chander Ramalingam( Book )

1 edition published in 1992 in English and held by 1 WorldCat member library worldwide

Superplastic forming is widely accepted as an advanced manufacturing method in the aerospace industry to produce complex components. However, in order to successfully design a superplastic forming process, it is necessary to predict the pressure loading cycle to maintain optimum superplastic conditions during deformation. In this dissertation a three dimensional finite element formulation for the design and analysis of thin sheet superplastic forming is presented. A non-Newtonian viscous model is used to describe the material behavior while principles of shell mechanics are used to model the sheet deformation. The sheet is discretized using a simple 6 noded Kirchhoff shell element which is capable of carrying constant membrane stress and constant moments. Based on the principle of rate of virtual work, the finite element equations have been developed with magnitudes referred to a convective coordinate system. The convective system changes with time and conforms to the shape of the midsurface of the shell. An explicit time stepping scheme is implemented to integrate the motion of the sheet from velocities which are the primary solution variables. The nonlinear equilibrium equations are solved using a Newton-Raphson iterative method. A new pressure prediction scheme, based on the power law constitutive model and membrane kinematic assumptions, has been developed and implemented into the formulation. The contact conditions are imposed by the method of pseudo-equilibrium coupled with a compatibility load step. Simple efficient techniques are employed in determining the occurrence and location of contact. A frictional contact procedure, which introduces the effect of friction through the application of tangential forces at the contact node, is presented. Finally, example problems to demonstrate the applicability of the model to simulate superplastic forming are solved. Simple shapes such as long rectangular pans and cones are superplastically formed and successfully verified with experimental results. The superplastic forming of a realistic industrial component is also presented
Determination of coefficient of thermal expansion of single-walled carbon nanotubes using molecular dynamics simulation by Naveen Prakash Marimuthu( )

1 edition published in 2005 in English and held by 1 WorldCat member library worldwide

 
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Superplasticity in advanced materials, ICSAM-2000 : proceedings of the 2000 International Conference on Superplasticity in Advanced Materials (ICSAM-2000) held at Sheraton International Resort, Orlando [Florida], USA during August 1-4, 2000 ICSAM : international symposium on superplasticity in advanced materials : proceedings, 2000, Orlando, USA, August 1-4
Covers
ICSAM : international symposium on superplasticity in advanced materials : proceedings, 2000, Orlando, USA, August 1-4
Alternative Names
Chandra, Namas

N. Chandra Indiaas filmregisseur

N. Chandra Indian producer, writer and director born 1952

N. Chandra Réalisateur et producteur indien né en 1952

Н. Чандра

एन. चन्द्र बलिउडका निर्देशक

Languages
English (53)

Hindi (1)