PREPARED BY
ABHISHEK KUMAR SHARMA


Fracture Mechanism In Design And Failure Analysis
Introduction
 Separation of solid into two or more pieces under applied load or stress
 Applied load or stress may be tensile or compressive in nature
 Fracture due to
1. Crack initiation
2. Crack propagation
Principles of Fracture Mechanics
 Quantitative study of failure is called fracture mechanics
 Fracture mechanics is the relationship between
 Material properties
 Stress level
 ....etc

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Stable tearing crack growth (slow ductile growth of a macroscopic crack in a load-bearing structure) is an important fracture failure process in ductile materials (e.g. metals) and usually precedes the final catastrophic failure of a structure. In recent years, there has been a growing demand for a simulation-based structural design and evaluation methodology that takes into account the stable tearing crack growth process. Within such a methodology, two tools must be available: (1) an efficient computer simulation code that can handle the kinem ....etc

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Ductile Mixed-mode Fracture Criterion Development and Crack Growth Simulations




Stable tearing crack growth (slow ductile growth of a macroscopic crack in a load-bearing structure) is an important fracture failure process in ductile materials (e.g. metals) and usually precedes the final catastrophic failure of a structure. In recent years, there has been a growing demand for a simulation-based structural design and evaluation methodology that takes into account the stable tearing crack growth process. Within such a methodology, two too ....etc

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Fracture of an automobile anti-roll bar
Abstract
Anti-roll bar is a suspension element used at the front, rear, or at both ends of a car that reduces body roll by resistingany unequal vertical motion between the pair of wheels to which it is connected. In this study, fracture analysis of ananti-roll bar of ab automobile is carried out. The analysed type of the anti-roll bar is especially important as many casesare reported about the fracture after a 100,000 km of travel. Mechanical characteristics of the material are obt ....etc

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Atomistic Characterization of Dislocation Nucleation and Fracture



One of the central objectives of multiscale materials modeling is to develop and apply simulation techniques to uncover atomic-level mechanisms without the significant limitations on system size and simulation time inherent to purely atomistic methods. In this context, I have made two contributions. I developed an interatomic potential finite element method (IPFEM) to study homogeneous dislocation nucleation by nano-indentation. The implementation of IPFEM facilitates sim ....etc

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[:=Read Full Message Here=:]

One of the central objectives of multiscale materials modeling is to develop and apply simulation techniques to uncover atomic-level mechanisms without the significant limitations on system size and simulation time inherent to purely atomistic methods. In this context, I have made two contributions. I developed an interatomic potential finite element method (IPFEM) to study homogeneous dislocation nucleation by nano-indentation. The implementation of IPFEM facilitates simulations at length scales that are large compared to atomic dimensions, wh ....etc

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