Fatigue and Fracture Mechanics of High Risk Parts

Fatigue and Fracture Mechanics of High Risk Parts PDF Author: Bahram Farahmand
Publisher: Springer Science & Business Media
ISBN: 1461560098
Category : Technology & Engineering
Languages : en
Pages : 386

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Book Description
In the preliminary stage of designing new structural hardware that must perform a given mission in a fluctuating load environment, there are several factors the designers should consider. Trade studies for different design configurations should be performed and, based on strength and weight considerations, among others, an optimum configuration selected. The selected design must be able to withstand the environment in question without failure. Therefore, a comprehen sive structural analysis that consists of static, dynamic, fatigue, and fracture is necessary to ensure the integrity of the structure. During the past few decades, fracture mechanics has become a necessary discipline for the solution of many structural problems. These problems include the prevention of failures resulting from preexisting cracks in the parent material, welds or that develop under cyclic loading environment during the life of the structure. The importance of fatigue and fracture in nuclear, pressure vessel, aircraft, and aerospace structural hardware cannot be overemphasized where safety is of utmost concern. This book is written for the designer and strength analyst, as well as for the material and process engineer who is concerned with the integrity of the structural hardware under load-varying environments in which fatigue and frac ture must be given special attention. The book is a result of years of both acade mic and industrial experiences that the principal author and co-authors have accumulated through their work with aircraft and aerospace structures.

Fatigue and Fracture Mechanics of High Risk Parts

Fatigue and Fracture Mechanics of High Risk Parts PDF Author: Bahram Farahmand
Publisher: Springer Science & Business Media
ISBN: 1461560098
Category : Technology & Engineering
Languages : en
Pages : 386

Get Book Here

Book Description
In the preliminary stage of designing new structural hardware that must perform a given mission in a fluctuating load environment, there are several factors the designers should consider. Trade studies for different design configurations should be performed and, based on strength and weight considerations, among others, an optimum configuration selected. The selected design must be able to withstand the environment in question without failure. Therefore, a comprehen sive structural analysis that consists of static, dynamic, fatigue, and fracture is necessary to ensure the integrity of the structure. During the past few decades, fracture mechanics has become a necessary discipline for the solution of many structural problems. These problems include the prevention of failures resulting from preexisting cracks in the parent material, welds or that develop under cyclic loading environment during the life of the structure. The importance of fatigue and fracture in nuclear, pressure vessel, aircraft, and aerospace structural hardware cannot be overemphasized where safety is of utmost concern. This book is written for the designer and strength analyst, as well as for the material and process engineer who is concerned with the integrity of the structural hardware under load-varying environments in which fatigue and frac ture must be given special attention. The book is a result of years of both acade mic and industrial experiences that the principal author and co-authors have accumulated through their work with aircraft and aerospace structures.

Fatigue and Fracture, 1997

Fatigue and Fracture, 1997 PDF Author:
Publisher:
ISBN:
Category : Fracture mechanics
Languages : en
Pages : 344

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Book Description


Fatigue Damage, Crack Growth and Life Prediction

Fatigue Damage, Crack Growth and Life Prediction PDF Author: F. Ellyin
Publisher: Springer Science & Business Media
ISBN: 0412596008
Category : Technology & Engineering
Languages : en
Pages : 490

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Book Description
Fatigue failure is a multi-stage process. It begins with the initiation of cracks, and with continued cyclic loading the cracks propagate, finally leading to the rupture of a component or specimen. The demarcation between the above stages is not well-defined. Depending upon the scale of interest, the variation may span three orders of magnitude. For example, to a material scientist an initiated crack may be of the order of a micron, whereas for an engineer it can be of the order of a millimetre. It is not surprising therefore to see that investigation of the fatigue process has followed different paths depending upon the scale of phenomenon under investigation. Interest in the study of fatigue failure increased with the advent of industrial ization. Because of the urgent need to design against fatigue failure, early investiga tors focused on prototype testing and proposed failure criteria similar to design formulae. Thus, a methodology developed whereby the fatigue theories were proposed based on experimental observations, albeit at times with limited scope. This type of phenomenological approach progressed rapidly during the past four decades as closed-loop testing machines became available.

Fatigue and Fracture Mechanics

Fatigue and Fracture Mechanics PDF Author: John H. Underwood
Publisher: ASTM International
ISBN: 0803124104
Category : Fracture mechanics
Languages : en
Pages : 697

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Book Description


Multiaxial Fatigue and Fracture

Multiaxial Fatigue and Fracture PDF Author: E. Macha
Publisher: Elsevier
ISBN: 008053712X
Category : Technology & Engineering
Languages : en
Pages : 289

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Book Description
This volume contains 18 papers selected from 90 presented at the Fifth International Conference on Biaxial/Multiaxial Fatigue and Fracture held in Cracow, Poland 8-12 September 1997. The papers in this book deal with theoretical, computational and experimental aspects of the multiaxial fatigue and fracture of engineering materials and structures. The papers are divided into the following four categories: 1. Proportional cyclic loading 2. Non-proportional cyclic loading 3. Variable amplitude and random loading 4. Crack growthMost papers in this publication talk about the behaviour of constructional materials and elements of machines under non-proportional loading and under variable amplitude and random loading, which are more realistic load histories met in industrial practice. Variable amplitude loading under cyclic load with basic frequency and random loading under load with a continuous band of frequency is classified here. This book gives a review of the latest world success and directions of investigations on multiaxial fatigue and fracture. More and more often publications are results of the co-operation of researchers from different laboratories and countries. Seven out of eighteen papers included here were worked out by international authors teams. This is a symptom of the times, when science and investigations know no borders.

Fatigue and Fracture Mechanics

Fatigue and Fracture Mechanics PDF Author: Kenneth L. Jerina
Publisher: ASTM International
ISBN: 0803126174
Category : Technology & Engineering
Languages : en
Pages : 480

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Book Description


ASM HANDBOOK, VOLUME 4F

ASM HANDBOOK, VOLUME 4F PDF Author: ASM INTERNATIONAL.
Publisher:
ISBN: 9781627084482
Category :
Languages : en
Pages : 0

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Book Description


Fatigue and Fracture Mechanics

Fatigue and Fracture Mechanics PDF Author: Gary R. Halford
Publisher: ASTM International
ISBN: 9780803128682
Category : Fatigue
Languages : en
Pages : 549

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Book Description


Notch Effects in Fatigue and Fracture

Notch Effects in Fatigue and Fracture PDF Author: G. Pluvinage
Publisher: Springer Science & Business Media
ISBN: 9401008809
Category : Science
Languages : en
Pages : 361

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Book Description
As Directors of this NATO Workshop, we welcome this opportunity to record formally our thanks to the NATO Scientific Affairs Division for making our meeting possible through generous financial support and encouragement. This meeting has two purposes: the first obvious one because we have collected scientists from East, far East and west to discuss new development in the field of fracture mechanics: the notch fracture mechanics. The second is less obvious but perhaps in longer term more important that is the building of bridges between scientists in the frame of a network called Without Walls Institute on Notch Effects in Fatigue and Fracture". Physical perception of notch effects is not so easy to understand as the presence of a geometrical discontinuity as a worst effect than the simple reduction of cross section. Notch effects in fatigue and fracture is characterised by the following fundamental fact: it is not the maximum local stress or stress which governs the phenomena of fatigue and fracture. The physic shows that a process volume is needed probably to store the necessary energy for starting and propagating the phenomenon. This is a rupture of the traditional "strength of material" school which always give the prior importance of the local maximum stress. This concept of process volume was strongly affirmed during this workshop.

Selected Papers on Foundations of Linear Elastic Fracture Mechanics

Selected Papers on Foundations of Linear Elastic Fracture Mechanics PDF Author: Robert Joseph Sanford
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 678

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Book Description
SPIE Milestones are collections of seminal papers from the world literature covering important discoveries and developments in optics and photonics.