14 Result(s)
within
Chapter
S.N. Atluri
Engineering
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Chapter
General Approaches on Formulating Weakly-Singular BIES for PDES
Straight-forward systematic development of the weakly-singular boundary integral equations (BIEs) for general Partial Differential Equations (PDEs) are extended in the present study by utilizing the gradients ...
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Chapter
A Consistent Theory of, and a Variational Principle for, Thick Elastic Shells Undergoing Finite Rotations
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Chapter and Conference Paper
Development of New Frame Finite Elements for Aircraft Crash Analysis
The objective of current development is to give additional capabilities to the currently used MASS-SPRING/LINEAR BEAM based analysis methodology (KRASH). By adding nonlinear frame elements specialized for cras...
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Chapter and Conference Paper
Equivalent Domain Integral for Delamination Growth Estimation
It is known that delaminations are the most frequent causes of failure in laminated structures, particularly under compressive loads. The presence of delaminations leads to a reduction in the overall strength ...
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Chapter and Conference Paper
Plane Stress Crack Growth and T* Integral an Experimental-Numerical Analysis
During the past several years, the authors and their colleagues have shown through experimental [1,2] and finite element (FE) analyses that the J-integral in thin aluminum 2024-T3 SEN specimens was extremely p...
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Chapter and Conference Paper
An Schwartz-Neumann Alternating Method for the Elastic-Plastic Analysis of Elliptical Cracks in 3D Body
Elliptical cracks are very important in the assessment of residual strength of structures, because an actual flaw in the structural component can be modelled as an ellipse or a part of an ellipse. After Vijaya...
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Chapter and Conference Paper
Impact Loads and Containment Aspects during a Rotor Failure in Aircraft Jet Engines
In today’s jet powered aircrafts, there is a danger associated with rotor failure when some parts of the rotor break loose at very high speeds and often these parts have enormous destructive potential. These h...
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Chapter and Conference Paper
Some Unification of Creep Theories Based on Internal Time Concept
Among the constitutive equations for high strain rate properties of materials under dynamic loading, the’ Overstress Model’ of Malvern[l] and Perzyna[2] is well known because of its simplicity and ability. Thi...
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Chapter
The Finite Element Method in the 1990’s: a Personal Perspective
The primary objective of this paper is to pay the most sincere tribute to a close friend, and a giant of the discipline of engineering analysis in this century, Professor Olek Zienkiewicz, who is the single mo...
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Chapter and Conference Paper
Large Deformation Analysis of Plates and Shells
The Field/Boundary Element method is used to solve problems involving static and dynamic analysis of thin elastic plates and shallow shells undergoing finite delections. The method is developed through the use...
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Chapter
Nonlinearities in the Dynamics and Control of Space Structures: Some Issues for Computational Mechanics
This article deals with nonlinearities that arise in the study of dynamics and control of highly flexible large-space-structures. Broadly speaking, these nonlinearities have various origins: (i) geometrical: due ...
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Chapter and Conference Paper
Energy-Release Rates in Dynamic Fracture: Path-Invariant Integrals, and Some Computational Studies
In this paper, the subject of path-invariant contour integrals that quantify the rate of energy release at a crack-tip, propagating under mixed-mode, unsteady conditions, with a non-constant velocity, is criti...
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Chapter and Conference Paper
Elastic-Plastic Analyses of a Three-Point Bend Specimen and a Fracturing Pipe
An assumed displacement, hybrid finite element method was used to analyze the elastic-plastic plane strain state of a three point bend specimen. A shell code was used to analyze the elastic dynamic propagation...
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Chapter and Conference Paper
New General and Complementary Energy Theorems, Finite Strain, Rate Sensitive Inelasticity and Finite Elements: Some Computational Studies
General variational theorems for the rate problems of rate-dependent finite strain inelasticity, in terms of the appropriate rates of the first and second Piola-Kirchhoff stress tensors, the symmetrized Biot-L...
