Cumulative Fatigue Damage Analysis Under Conditions Of Competing Mechanisms PDF Download
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Author | : Sissay Hailu |
Publisher | : |
Total Pages | : 264 |
Release | : 1997 |
Genre | : |
ISBN | : |
Download Cumulative Fatigue Damage Analysis Under Conditions of Competing Mechanisms Book in PDF, ePub and Kindle
Author | : L. Yang |
Publisher | : |
Total Pages | : 12 |
Release | : 1998 |
Genre | : Automotive medicine |
ISBN | : |
Download Cumulative Fatigue Damage Mechanisms and Quantifying Parameters Book in PDF, ePub and Kindle
Cumulative fatigue damage analysis plays an important role in fatigue life prediction of components and structures which are subjected to field loading histories. Understanding of cumulative damage mechanisms is essential since it provides the necessary physical bases for modeling the cumulative damage process. A damage measure that can reflect and quantify the real damage state the material undergoes is also a key issue for successful modeling of cumulative fatigue damage. This review paper provides a comprehensive overview of research activities highlighting the recent findings and progress on phenomenological observations and mechanisms, as well as quantification measures of cumulative fatigue damage. Depending on the definition of failure or the characteristics of failure experienced in a material, the effectiveness of a damage parameter could vary from case to case. Many damage parameters have been proposed and many of them are in use. Those to be reviewed are sorted into categories of metallurgical parameters, surface crack quantifications, mechanical measures, and physical parameters. Early studies on cumulative damage mechanisms and quantifying measures are reviewed only briefly, since they have been covered in the existing literature.
Author | : Claude Bathias |
Publisher | : John Wiley & Sons |
Total Pages | : 279 |
Release | : 2013-03-04 |
Genre | : Technology & Engineering |
ISBN | : 1118617223 |
Download Fatigue of Materials and Structures Book in PDF, ePub and Kindle
The design of mechanical structures with predictable and improved durability cannot be achieved without a thorough understanding of the mechanisms of fatigue damage and more specifically the relationships between the microstructure of materials and their fatigue properties. Written by leading researchers in the field, this book, along with the complementary books Fatigue of Materials and Structures: Fundamentals and Application to Damage and Design (both also edited by Claude Bathias and André Pineau), provides an authoritative, comprehensive and unified treatment of the mechanics and micromechanisms of fatigue in metals, polymers and composites. Each chapter is devoted to one of the major classes of materials or to different types of fatigue damage, thereby providing overall coverage of the field. This book deals with multiaxial fatigue, thermomechanical fatigue, fretting-fatigue, influence of defects on fatigue life, cumulative damage and damage tolerance, and will be an important and much used reference for students, practicing engineers and researchers studying fracture and fatigue in numerous areas of materials science and engineering, mechanical, nuclear and aerospace engineering.
Author | : MA. McGaw |
Publisher | : |
Total Pages | : 13 |
Release | : 1993 |
Genre | : Alloys |
ISBN | : |
Download Cumulative Damage Concepts in Thermomechanical Fatigue Book in PDF, ePub and Kindle
A recently developed cumulative creep-fatigue damage model is applied to the prediction of thermomechanical and isothermal cumulative creep-fatigue loading histories. The model utilizes damage curve expressions to describe cumulative damage evolution under creep-fatigue conditions, qualitatively grouped according to dominant damage mechanism or mode. The damage coupling concept of McGaw is employed to describe the cumulative interaction among different mechanisms and modes. In this study, experiments consisting of two-level loadings of thermomechanical fatigue (both in-phase and out-of-phase) followed by isothermal fatigue to failure, were conducted on 316 stainless steel. It was found that the model gave good predictions for the out-of-phase two-level tests and provided reasonable bounds for the in-phase two-level tests.
Author | : George A. Pantazopoulos |
Publisher | : MDPI |
Total Pages | : 476 |
Release | : 2020-03-19 |
Genre | : Technology & Engineering |
ISBN | : 303928276X |
Download Failure Mechanisms in Alloys Book in PDF, ePub and Kindle
The era of lean production and excellence in manufacturing, advancing with sustainable development, demands the rational utilization of raw materials and energy resources, adopting cleaner and environmentally-friendly industrial processes. In view of the new industrial revolution, through digital transformation, the exploitation of smart and sophisticated materials systems, the need of minimizing scrap and increasing efficiency, reliability and lifetime and, on the other hand, the pursuit of fuel economy and limitation of carbon footprint, are necessary conditions for the imminent growth in a highly competitive economy. Failure analysis is an interdisciplinary scientific topic, reflecting the opinions and interpretations coming from a systematic evidence-gathering procedure, embracing various important sectors, imparting knowledge, and substantiating improvement practices. The deep understanding of material/component role (e.g., rotating shaft, extrusion die, gas pipeline) and properties will be of central importance for fitness for purpose in certain industrial processes and applications. Finally, it is hoped and strongly believed that the accumulation of additional knowledge in the field of failure mechanisms and the adoption of the principles, philosophy, and deep understanding of failure analysis process approach will strongly promote the learning concept, as a continuously evolving process leading to personal and social progress and prosperity.
Author | : JoDean Morrow |
Publisher | : |
Total Pages | : 84 |
Release | : 1974 |
Genre | : Metals |
ISBN | : |
Download Local Stress-strain Approach to Cumulative Fatigue Damage Analysis Book in PDF, ePub and Kindle
A cumulative fatigue damage procedure for estimating the fatigue crack initiation life of notched structural members subjected to known load histories is outlined. This procedure assumes that a knowledge of the local cyclic stress-strain response of the metal at the most severely strained region in a member is sufficient to predict when a crack will form there. Some of the steps in this procedure that are of current interest and which are especially applicable to a local stress-strain approach are discussed. Alternative, approximate and/or abbreviated steps in the cumulative fatigue damage procedure are given wherever possible. Limitations of the method and areas where research is needed are pointed out. Cumulative fatigue test results for smooth specimens, notched plates and built-up box beams are compared to life calculations made using the local stress-strain approach. Cyclic deformation and fracture properties, used in the analysis, were obtained from tests on a limited number of axially loaded unnotched specimens. These examples indicate that a cumulative fatigue damage analysis based on the local stress-strain approach employing a minimum amount of materials test data can be used to make reasonable life estimates for members similar to many practical structural members. (Modified author abstract).
Author | : Bui Quoc Thang |
Publisher | : |
Total Pages | : 8 |
Release | : 1971 |
Genre | : Pressure vessels |
ISBN | : |
Download ASME 71-MET-M Book in PDF, ePub and Kindle
Author | : S. S. Manson |
Publisher | : |
Total Pages | : 104 |
Release | : 1986 |
Genre | : Metals |
ISBN | : |
Download Re-examination of Cumulative Fatigue Damage Analysis, an Engineering Perspective Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 39 |
Release | : 1980 |
Genre | : |
ISBN | : |
Download Investigation of Cumulative Fatigue Damage for Selected Materials Book in PDF, ePub and Kindle
A direct Tension-compression fatigue testing machine Model DS-600 HLM is procured, installed, and calibrated for the generation of data to study the cumulative fatigue damage in selected materials. An apparatus and step-by-step procedure are developed to electropolish the fatigue specimen. Experimental data are generated using 2011-T3 aluminum alloy specimens under completely reversed condition for Low-High and Low-High-Mixed stress cycles. Analysis of the data has indicated that the predicted cumulative fatigue damage and fatigue life are in complete agreement with the experimental values.
Author | : U. Muralidharan |
Publisher | : |
Total Pages | : 190 |
Release | : 1980 |
Genre | : |
ISBN | : |
Download Development of Double-linear Damage Rule for Cumulative Fatigue Damage Analysis Book in PDF, ePub and Kindle