Author: François G. HamelPublisher:
ISBN:
Category :
Languages : en
Pages : 50
Book Description
Fatigue Crack Growth Prediction Methods for Variable Amplitude Loading
Author: François G. HamelFatigue Crack Growth Prediction Methods for Variable Amplitude Loading
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 32
Book Description
Considerable data on fatigue properties of materials under constant amplitude loading is available in the literature under the forms representative of the different aspects of the fatigue phenomenon. To employ these data, the design engineer must adapt it to the particular service conditions that he is concerned with. The stress vs. life or S-N curve is largely related to the fatigue initiation behaviour of materials and defines the endurance limit which is used for design. The strain-life curve is of more recent origin and relates the elastic and plastic strain amplitudes to the initiation life. Fatigue propagation data are presented on a crack growth rate vs. stress intensity factor range diagram.
Methods and Models for Predicting Fatigue Crack Growth Under Random Loading
Author: J. B. ChangPublisher: ASTM International
ISBN: 9780803107151
Category : Technology & Engineering
Languages : en
Pages : 150
Book Description
Prediction Methods for Crack Growth Under Variable-amplitude Loading
Author: Harry Zvi GranotPublisher:
ISBN:
Category : Fracture mechanics
Languages : en
Pages : 222
Book Description
Fatigue of Structures and Materials
Author: J. SchijvePublisher: Springer Science & Business Media
ISBN: 1402068085
Category : Science
Languages : en
Pages : 627
Book Description
Fatigue of structures and materials covers a wide scope of different topics. The purpose of the present book is to explain these topics, to indicate how they can be analyzed, and how this can contribute to the designing of fatigue resistant structures and to prevent structural fatigue problems in service. Chapter 1 gives a general survey of the topic with brief comments on the signi?cance of the aspects involved. This serves as a kind of a program for the following chapters. The central issues in this book are predictions of fatigue properties and designing against fatigue. These objectives cannot be realized without a physical and mechanical understanding of all relevant conditions. In Chapter 2 the book starts with basic concepts of what happens in the material of a structure under cyclic loads. It illustrates the large number of variables which can affect fatigue properties and it provides the essential background knowledge for subsequent chapters. Different subjects are presented in the following main parts: • Basic chapters on fatigue properties and predictions (Chapters 2–8) • Load spectra and fatigue under variable-amplitude loading (Chapters 9–11) • Fatigue tests and scatter (Chapters 12 and 13) • Special fatigue conditions (Chapters 14–17) • Fatigue of joints and structures (Chapters 18–20) • Fiber-metal laminates (Chapter 21) Each chapter presents a discussion of a speci?c subject.
The Development of an Analytical Prediction Technique for Variable Amplitude Fatigue Crack Propagation
Author: M. F. KanninenPublisher:
ISBN:
Category :
Languages : en
Pages : 110
Book Description
The development of a fatigue crack-growth predictive technique for variable amplitude loading, initiated under previous NADC support, was continued. Attention was focused on a simple version of the general model. This provided a crack growth predictive formula for constant amplitude loading. Comparisons with experimental results and a semiempirical crack-growth law ahow that the prediction is quite realistic. The work has also indicated how improvements in the general model can be made to cope with more realistic service conditions. The further steps required to develop an efficient model that can cope with both variable amplitude loading and environmental effects are outlined. (Author).
The Fatigue Crack Growth Under Variable Amplitude Loading in Built-up Structures
Author: Attilio SalvettiPublisher:
ISBN:
Category :
Languages : en
Pages : 83
Book Description
Thirty three specimens were tested both at constant and variable amplitude loading. The specimens, cut from sheets of 7075-T6 aluminium alloy, coming from the same batch were both simple sheets and riveted stiffened panels. The constant amplitude tests on simple sheet specimens were carried out in order to obtain the average K-rate relationship and the relevant scatter of the batch of sheets. The constant amplitude tests on stiffened panel were aimed at obtaining information on rivet flexibility and friction forces. Variable amplitude tests were performed utilizing the FALSTAFF spectrum. The data on sheet specimens was used to assess the reliability of prediction methods such as those devised by Wheeler and Willenborg, and the stiffened panels test data to establish how these methods work in the case of built-up structures. The results, especially those concerning the spectrum tests on stiffened panels, are still preliminary, but significant in as far as they allow us to assess the reliability of crack grow prediction methods and to obtain a qualitative but deep insight into the phenomenon of crack growth in built-up structures.
Prediction Models of Fatigue Crack Growth Under Variable Amplitude Loading
Author: Agostino LanciottiFatigue Testing and Analysis Under Variable Amplitude Loading Conditions
Author: Peter C. McKeighanPublisher: ASTM International
ISBN: 0803134797
Category : Aluminum alloys
Languages : en
Pages : 588
Book Description
Author: Małgorzata Skorupa