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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 and Conference Paper
Variational Approaches for Dynamics: Numerical Studies
Weak formulations in Analytical Dynamics are developed, paralleling the variational methods in elastostatics, and including a fundamental yet novel approach for treating constraints (both holonomic and nonholo...
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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 and Conference Paper
Microcomputers
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Chapter and Conference Paper
Erratum to: Towards Computer Aided Surgery: efractive Refractive Eye Surgery Simulations
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Chapter and Conference Paper
Erratum to: Solution Technique for a Coupled System of Equations Describing Advection-Dominated Transport and Biotransformations in the Subsurface
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Chapter and Conference Paper
Evaluation of K-Factors and Weight Functions for 2-D Mixed-Mode Multiple Cracks by the Boundary Element Alternating Method
The concept of the Schwartz-Neumann alternating method [1,2], in conjunction with the boundary element method to solve for the stresses in an uncracked body, and an analytical solution for an embedded 2-D crack s...
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Chapter and Conference Paper
Computational Implementation of an Internal Time Constitutive Equations in Finite Deformation Plasticity
Finite element implementation of an internal time elasto-plastic constitutive equation that involves the plastic spin associated with Mandel’s material director is considered for finite strain deformations. A ...
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Chapter and Conference Paper
Non-Hyper-Singular Integral-Representations for Velocity (Displacement) Gradients in Elastic/Plastic Solids Undergoing Small or Finite Deformations
New integral representations for deformation (velocity) gradients in elastic or elasto-plastic solids undergoing small or large deformations are presented. Compared to the cases wherein direct differentiation ...
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Chapter and Conference Paper
Time-Finite Element Method for the Constrained Dynamics of a Rigid Body
Currently, there is a renewed interest in the study of multi-body-dynamics and its application in many fields of engineering. The mathematical model of a rigid body is useful whenever the overall motion, invol...
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Chapter and Conference Paper
Generation Phase Analysis of Dynamic and Visco-Plastic Crack Propagation in Non-Isothermal Wide Plates
This paper is concerned with a visco-plastic FEM analysis of crack run-arrest experiments of nonisothermal wide plates, which were performed as a part of the Heavy-Section Steel Technology (HSST) program in U....
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Chapter and Conference Paper
Finite-Element-Alternating Method for Analysis of Cracked Three-Dimensional Solids
The finite-element-alternating method is used to analyze part-elliptic circumferential surface cracks in cylinders. The method showed excellent convergence characteristics and yielded accurate stress-intensity...