Prediction of Fatigue Crack Growth Under Spectrum Loads

Prediction of Fatigue Crack Growth Under Spectrum Loads PDF Author: AE. Gemma
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 19

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Book Description
The reduced crack growth rate caused by each high-low load sequence of a complex load spectrum is modeled by a modified empirical constant-amplitude crack propagation relationship. The modification consists of the replacement of the crack rate term by a fractional derivative. The order of the derivative is a nondimensional parameter which is defined in terms of each high-low load sequence occurring in the spectrum. A cycle-by-cycle solution of the fractional differential equation yields the crack growth behavior for the spectrum. The approach is evaluated by comparing predictions with available experimental results for three aluminum alloys (7075-T6, 7050-T73, 2024-T3), two titanium alloys (Ti-6A1-4V, Ti-6Al-2Sn-4Zr-6Mo) and a nickel base superalloy IN-100. In all cases the method accurately predicted the general trends and estimates were well within a factor of two for 39 out of 40 tests analyzed.

Fatigue Crack Growth

Fatigue Crack Growth PDF Author: Hans Albert Richard
Publisher: Springer
ISBN: 3319325345
Category : Technology & Engineering
Languages : en
Pages : 292

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Book Description
This book offers a concise introduction to fatigue crack growth, based on practical examples. It discusses the essential concepts of fracture mechanics, fatigue crack growth under constant and variable amplitude loading and the determination of the fracture-mechanical material parameters. The book also introduces the analytical and numerical simulation of fatigue crack growth as well as crack initiation. It concludes with a detailed description of several practical case studies and some exercises. The target group includes graduate students, researchers at universities and practicing engineers.

Fatigue Crack Growth Under Spectrum Loads

Fatigue Crack Growth Under Spectrum Loads PDF Author: Robert Peh-ying Wei
Publisher: ASTM International
ISBN:
Category : Alloys
Languages : en
Pages : 339

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Book Description


Fatigue Crack Growth Under Spectrum Loads

Fatigue Crack Growth Under Spectrum Loads PDF Author:
Publisher: ASTM International
ISBN:
Category : Fracture mechanics
Languages : en
Pages : 339

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Book Description


Prediction of Fatigue Crack Growth Under Spectrum Loads

Prediction of Fatigue Crack Growth Under Spectrum Loads PDF Author: AE. Gemma
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 19

View

Book Description
The reduced crack growth rate caused by each high-low load sequence of a complex load spectrum is modeled by a modified empirical constant-amplitude crack propagation relationship. The modification consists of the replacement of the crack rate term by a fractional derivative. The order of the derivative is a nondimensional parameter which is defined in terms of each high-low load sequence occurring in the spectrum. A cycle-by-cycle solution of the fractional differential equation yields the crack growth behavior for the spectrum. The approach is evaluated by comparing predictions with available experimental results for three aluminum alloys (7075-T6, 7050-T73, 2024-T3), two titanium alloys (Ti-6A1-4V, Ti-6Al-2Sn-4Zr-6Mo) and a nickel base superalloy IN-100. In all cases the method accurately predicted the general trends and estimates were well within a factor of two for 39 out of 40 tests analyzed.

Effect of Load Spectrum Variables on Fatigue Crack Initiation and Propagation

Effect of Load Spectrum Variables on Fatigue Crack Initiation and Propagation PDF Author: D. F. Bryan
Publisher: ASTM International
ISBN: 9780803107205
Category : Crack
Languages : en
Pages : 242

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Book Description


Fatigue Crack Growth Under Spectrum Loads

Fatigue Crack Growth Under Spectrum Loads PDF Author:
Publisher:
ISBN:
Category : Fracture mechanics
Languages : en
Pages : 339

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Book Description


Fatigue Crack Growth Under Spectrum Loads

Fatigue Crack Growth Under Spectrum Loads PDF Author: R. P. Wei
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Effect of Load Spectrum Variables on Fatigue Crack Initiation and Propagation

Effect of Load Spectrum Variables on Fatigue Crack Initiation and Propagation PDF Author: D. F. Bryan
Publisher: ASTM International
ISBN:
Category : Fracture mechanics
Languages : en
Pages : 236

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Book Description


Methods and Models for Predicting Fatigue Crack Growth Under Random Loading

Methods and Models for Predicting Fatigue Crack Growth Under Random Loading PDF Author:
Publisher: ASTM International
ISBN:
Category :
Languages : en
Pages :

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Methods and Models for Predicting Fatigue Crack Growth Under Random Loading

Methods and Models for Predicting Fatigue Crack Growth Under Random Loading PDF Author: J. B. Chang
Publisher: ASTM International
ISBN: 9780803107151
Category : Aluminum
Languages : en
Pages : 138

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Book Description


Fatigue Crack Growth

Fatigue Crack Growth PDF Author: Hans Albert Richard
Publisher: Springer
ISBN: 3319325345
Category : Technology & Engineering
Languages : en
Pages : 292

View

Book Description
This book offers a concise introduction to fatigue crack growth, based on practical examples. It discusses the essential concepts of fracture mechanics, fatigue crack growth under constant and variable amplitude loading and the determination of the fracture-mechanical material parameters. The book also introduces the analytical and numerical simulation of fatigue crack growth as well as crack initiation. It concludes with a detailed description of several practical case studies and some exercises. The target group includes graduate students, researchers at universities and practicing engineers.