Recent developments in engineering and technology have brought about serious and enlarged demands for reliability, safety and economy in wide range of fields such as aeronautics, nuclear engineering, civil and structural engineering, automotive and production industry. This, in turn, has caused more interest in continuum damage mechanics and its engineering applications. This book aims to give a concise overview of the current state of damage mechanics, and then to show the fascinating possibility of this promising branch of mechanics, and to provide researchers, engineers and graduate students with an intelligible and self-contained textbook. The book consists of two parts and an appendix. Part I is concerned with the foundation of continuum damage mechanics. Basic concepts of material damage and the mechanical representation of damage state of various kinds are described in Chapters 1 and 2. In Chapters 3-5, irreversible thermodynamics, thermodynamic constitutive theory and its application to the modeling of the constitutive and the evolution equations of damaged materials are descried as a systematic basis for the subsequent development throughout the book. Part II describes the application of the fundamental theories developed in Part I to typical damage and fracture problems encountered in various fields of the current engineering. Important engineering aspects of elastic-plastic or ductile damage, their damage mechanics modeling and their further refinement are first discussed in Chapter 6. Chapters 7 and 8 are concerned with the modeling of fatigue, creep, creep-fatigue and their engineering application. Damage mechanics modeling of complicated crack closure behavior in elastic-brittle and composite materials are discussed in Chapters 9 and 10. In Chapter 11, applicability of the local approach to fracture by means of damage mechanics and finite element method, and the ensuing mathematical and numerical problems are briefly discussed. A proper understanding of the subject matter requires knowledge of tensor algebra and tensor calculus. At the end of this book, therefore, the foundations of tensor analysis are presented in the Appendix, especially for readers with insufficient mathematical background, but with keen interest in this exciting field of mechanics.
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PD95 2002 Normativ privind proiectarea hidraulica a podurilor si podetelo
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A suggestion I would like to make is that the resource/ebooks/software threads are made private (not visible) to guests and people who are not logged in.
Loading characteristics of a tertiary clay and implications for road pavement design
Bulletin of Engineering Geology and the Environment
Volume 37, Number 1, 137-141, DOI: 10.1007/BF02590380
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NPV-at-Risk Method in Infrastructure Project Investment Evaluation
Author: Sudong Ye and Robert L. K. Tiong | Size: - MB | Format:PDF | Quality:Original preprint | Publisher: ASCE Journal of Construction Engineering and Management | Year: 2000 | pages: 7
Strategic capital investment decisions are crucial to a business firm. The decision to invest in privately financed infrastructure projects requires careful consideration, because they are exposed to high levels of financial, political, and market risks. The project appraisal methods should incorporate analysis of these risks. A number of capital-investment decision methods can take risks into account, but each of them focuses on different factors and has its limitations. Thus, a more vigorous method is needed. A systematic classification of existing evaluation methods shows that it is possible to develop a new method—the net-present-value-at-risk (NPV-at-risk) method—by combining the weighted average cost of capital and dual risk-return methods. The evaluation of two hypothetical power projects shows that the NPV-at-risk method can provide a better decision for risk evaluation of, and investment in, privately financed infrastructure projects.
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Concrete admixtures, Concretes, Mortars, Grouting, Construction materials, Control samples, Test equipment, Composition, Concrete mixes, Mixing, Specimen preparation, Sand, Particle size distribution, Consistency (mechanical property)
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Concrete admixtures, Concretes, Mortars, Grouting, Construction materials, Concrete mixes, Cement and concrete technology, Control samples, Mixing, Specimen preparation, Performance testing, Aggregates, Physical properties of materials
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