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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.
1

Study of elastic moduli and thermal conductivity of injection moulded short fiber reinforced composites.

January 1990 (has links)
by Kwok Kin Wing. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1990. / Bibliography: leaves 126-128. / Acknowledgement / Abstract / Chapter 1. --- Introduction --- p.1 / Chapter 1.1 --- General Background --- p.1 / Chapter 1.2 --- Previous Studies on Injection Moulded Short Fibre Reinforced Composites --- p.4 / Chapter 1.3 --- Scope of the Present Work --- p.6 / Chapter 2. --- Theory --- p.8 / Chapter 2.1 --- Elastic Moduli of Injection Moulded Short Fibre Reinforced Composites --- p.8 / Chapter 2.1.1 --- Elastic Properties of an Anisotropic Solid --- p.10 / Chapter 2.1.2 --- Elastic Moduli of a Unidirectional Lamina --- p.12 / Chapter 2.1.3 --- Laminate Theory for the Elastic Moduli of Short Fibre Reinforced Composites --- p.21 / Chapter 2.1.4 --- Out-of-Plane Elastic Moduli of Injection Moulded Short Fibre Reinforced Composites --- p.31 / Chapter 2.2 --- Thermal Conductivity of Injection Moulded Short Fibre Reinforced Composites --- p.32 / Chapter 2.2.1 --- Thermal Conductivity of a Unidirectional Lamina --- p.32 / Chapter 2.2.2 --- Laminate Theory for the Thermal Conductivity of a Multidirectional Laminate --- p.35 / Chapter 2.2.3 --- In-plane Thermal Conductivity of Injection Moulded Short Fibre Reinforced Composites --- p.36 / Chapter 3. --- Expeirimental Techniques --- p.37 / Chapter 3.1 --- Determination of the Elastic Moduli by Ultrasonic Techniques --- p.37 / Chapter 3.1.1 --- Theory of Measurement --- p.37 / Chapter 3.1.2 --- Ultrasonic Measurement --- p.40 / Chapter 3.2 --- Determination of the Thermal Diffusivity by Laser Flash Radiometry --- p.49 / Chapter 3.2.1 --- Theory of Measurement --- p.49 / Chapter 3.2.2 --- Thermal Diffusivity Measurement --- p.51 / Chapter 3.3 --- Fibre Orientation and Length Measurements --- p.57 / Chapter 3.4 --- Density Measurement --- p.58 / Chapter 4 . --- Results and Discussion --- p.60 / Chapter 4.1 --- Composites and Polymers Studied in the Present Work --- p.60 / Chapter 4.2 --- Elastic Moduli and Thermal Conductivity of the Fibres and Polymer Matrices --- p.60 / Chapter 4.3 --- Fibre Orientation and Aspect Ratio --- p.67 / Chapter 4.4 --- Elastic Moduli of the Composites --- p.74 / Chapter 4.4.1 --- General Features --- p.74 / Chapter 4.4.2 --- Comparison between Theory and Experiment --- p.77 / Chapter 4.5 --- Thermal Conductivity of the Composites --- p.90 / Chapter 4.5.1 --- Thickness and Width Dependence of the Thermal Diffusivity of the Composites --- p.90 / Chapter 4.5.2 --- Comparison between Theory and Experiment --- p.104 / Chapter 5. --- Conclusion --- p.113 / Chapter Appendix A --- Tables of Data --- p.115 / References --- p.126
2

Evaluating the Properties and Functionality of Steel Fiber Reinforced Concrete

Alharmoosh-Alqenai, Yousif January 1900 (has links)
Degree Not Listed / Department of Civil Engineering / Asadollah Esmaeily / This report is contingent upon research and literature reviews, targeting steel fiber reinforced concrete (SFRC). It will explore all aspects involved, detailing both properties and functionality. Historical development of the modern application mix and design procedures will be discussed. A critical investigation based on laboratory testing is examined and a comparative discussion is provided. This report will also highlight the structural uses, benefits, applications and deficiencies acquired by SFRC.
3

Early age stresses and creep-shrinkage interaction of restrained concrete

Altoubat, Salah Ahmed. January 2000 (has links) (PDF)
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2000. / Includes bibliographical references (leaves 210-220).
4

Crack-induced debonding failure in fiber reinforced plastics (FRP) strengthened concrete beams : experimental and theoretical analysis /

Pan, Jinlong. January 2005 (has links)
Thesis (Ph.D.)--Hong Kong University of Science and Technology, 2005. / Includes bibliographical references (leaves 293-308). Also available in electronic version.
5

Experimental investigation on behavior of steel fiber reinforced concrete (SFRC) : a dissertation submitted to the University of Canterbury in partial fulfillment of the requirements for the degree of Master [of Engineering] /

Wang, Chuanbo. January 1900 (has links)
Thesis (M.E.)--University of Canterbury, 2006. / Typescript (photocopy). "August 2006." Includes bibliographical references. Also available via the World Wide Web.
6

A study of R/C beams, additionally reinforced with steel fibers

Byers, Jack G January 2010 (has links)
Typescript, etc. / Digitized by Kansas Correctional Industries
7

Modified ACI Drop-Weight Impact Test for Concrete.

Badr, A., Ashour, Ashraf F. 12 October 2009 (has links)
ACI Committee 544's repeated drop-weight impact test for concrete is often criticized for large variations within the results. This paper identifies the sources of these large variations and accordingly suggests modifications to the ACI test. The proposed modifications were evaluated and compared to the current ACI test by conducting impact resistance tests on 40 specimens from two batches of polypropylene fiber-reinforced concrete (PPFRC). The results obtained from both methods were statistically analyzed and compared. The variations in the results were investigated within the same batch and between different batches of concrete. The impact resistance of PPFRC specimens tested with the current ACI test exhibited large coefficients of variation (COV) of 58.6% and 50.2% for the first-crack and the ultimate impact resistance, respectively. The corresponding COV for PPFRC specimens tested according to the modified technique were 39.4% and 35.2%, indicating that the reliability of the results was significantly improved. It has been shown that, using the current ACI test, the minimum number of replications needed per each concrete mixture to obtain an error below 10% was 41 compared to 20 specimens for the modified test. Although such a large number of specimens is not good enough for practical and economical reasons, the reduction presents a good step on the development of a standard impact test.
8

Time-dependant behaviour of engineered cement-based composites /

Boshoff, William Peter. January 2007 (has links)
Dissertation (PhD)--University of Stellenbosch, 2007. / Bibliography. Also available via the Internet.
9

Steel fibre reinforced concrete coupling beams /

Baczkowski, Bartlomiej Jan. January 2007 (has links)
Thesis (Ph.D.)--Hong Kong University of Science and Technology, 2007. / Includes bibliographical references (leaves 288-293). Also available in electronic version.
10

Interfacial bond properties for ECC overlay systems /

Stander, Heinrich. January 2007 (has links)
Thesis (MScIng)--University of Stellenbosch, 2007. / Bibliography. Also available via the Internet.

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