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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

Electromechanical and fatigue properties of as-manufactured and quench damaged YBCO coated conductor

Mbaruku, Abdallah. Schwartz, Justin, January 2006 (has links)
Thesis (Ph. D.)--Florida State University, 2006. / Advisor: Justin Schwartz, Florida State University, College of Engineering, Dept. of Mechanical Engineering. Title and description from dissertation home page (viewed June 16, 2006). Document formatted into pages; contains xvi, 132 pages. Includes bibliographical references.
32

Development of computer aided heat treatment planning system for quenching & tempering (CHT--q/t) and industrial application of CHT-bf & CHT-cf

Singh, Amarjit Kumar. January 2006 (has links)
Thesis (M.S.)--Worcester Polytechnic Institute. / Keywords: properties prediction, quenchant database, TTT diagram. Includes bibliographical references (p.190-193).
33

Bioavailability and toxicity of trace metals to the cladoceran daphnia magna in relation to CD exposure history /

Guan, Rui. January 2006 (has links)
Thesis (Ph.D.)--Hong Kong University of Science and Technology, 2006. / Includes bibliographical references. Also available in electronic version.
34

Modelling of inclusion behavior in liquid metals

Nakajima, Hidemasa. January 1985 (has links)
No description available.
35

Fatigue crack growth analysis of metallic plates with an inclinedsemi-elliptical crack

Bian, Lichun., 卞立春. January 2001 (has links)
published_or_final_version / Mechanical Engineering / Doctoral / Doctor of Philosophy
36

A conic-section simulation analysis of two-dimensional fracture problems using finite element method

劉國楨, Lau, Kwok-jing. January 1975 (has links)
published_or_final_version / Mechanical Engineering / Doctoral / Doctor of Philosophy
37

Electronic and structural properties of adsorbates on nickel and aluminium surfaces

Hayden, Andrew Bryan January 1993 (has links)
No description available.
38

Single overload fatigue crack growth retardation : an implementation of plasticity induced closure

Kirmani, Ghulam Ashraf-Ul-Harmain 11 May 2017 (has links)
Fatigue life prediction following overloads is required in such applications as, aerospace, automobile, and pressure vessels industries for damage tolerant design. Modelling of life prediction in fatigue is complicated by a host of variables which includes loading history. The characteristic features which result as a posteriori evidence of the loading history include overload plasticity zone, crack closure with a special trend with respect to crack length, spike-dip in fatigue crack growth rate and retardation in fatigue growth. This research focuses on life prediction of components subjected to variable magnitude single overloads, in a cyclic loading situation. This thesis introduces the plasticity range interaction, and closure effects for variable magnitude single overload problems. A simple model is presented which captures these characteristic features following overloads. A detailed study on the crack-tip plasticity is conducted to identify the dimensions of the plasticity zone. A new approach is presented which is useful in obtaining suppression factor for fatigue growth retardation. This factor is required in fatigue crack growth models to account for retardation effect following overloads. The model for fatigue crack growth is tested for constant amplitude loads. A detailed study is presented on fatigue crack closure based constant amplitude calculations. Two different approaches to fatigue growth calculations are presented. An assessment of the errors that occur in assumed-crack extension method is also presented. Several examples have shown a good agreement between experimental and theoretical results. The study is extended to variable magnitude single overload problem for determination of fatigue growth calculations. Two different approaches have been adopted, one based on plasticity range interaction, and the other on closure. It has been shown that the two approaches are equivalent. There is an excellent agreement between predictions and theory for fatigue life calculations and fatigue growth rate. This research directly contributes to life prediction under single overloads without reliance on data fitting. It has tremendous potential for fatigue life prediction under programmed block loads, multiple overloads and finally for random loads, which can be investigated in further studies. / Graduate
39

Structural, synthetic and kinetic studies of some transition metal carbonyl dimers and trimers

Robinson, David John 18 August 2015 (has links)
A dissertation submitted to the Faculty of Science University of the Witwatersrand, Johannesburg, in fulfilment of the requirements for the deqree of Master of science. November, 1984
40

Determination of the burning rate of small diameter aluminum wire.

Friant, Charles William, January 1964 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute, 1965. / Typewritten. Vita. Abstract at end. Bibliography: leaf 49. Also available via the Internet.

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