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Dissertations / Theses on the topic 'Test of Flexural strength'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Mansour, Marwan. "Experimental tests on the effect of temperature on the short term behavior of FRC beams." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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The effect of temperature under short term behavior on macro-synthetic polypropylene fibers reinforced concrete (MSFRC) was evaluated, to understand how this condition may affect the performance of this material. An experimental campaign of three-point bending, compressive tests and elastic modulus tests have been performed on prisms, cubes and cylinders cured at 6 temperatures, ranging from -30°C to +60°C. The results highlighted that, for the material tested, the increment of temperature causes a decrement of the peak and post-peak flexural strength. Further analysis have been done on the fi

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2

Siahaan, Ropalin. "Structural behaviour and design of rivet fastened rectangular hollow flange channel beams." Thesis, Queensland University of Technology, 2017. https://eprints.qut.edu.au/106913/1/Ropalin_Siahaan_Thesis.pdf.

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This thesis presents a study into the structural behaviour and design of the innovative rivet fastened Rectangular Hollow Flange Channel Beams (RHFCB). The RHFCB utilizes the inexpensive self-pierce rivet fastening in its fabrication, providing cost effective structural solutions in floor systems. The first part of the thesis focuses on the section moment capacities of the beams subject to local buckling effects while the second part investigates the member moment capacities of intermediate span beams subject to the unique lateral distortional buckling effects. Each part involves experimental

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3

MAHMOUD, TAREK IBRAHIM. "Evaluation of the degradation process of cement-based materials exposed to aggressive environment by using ultrasonic techniques and physical characterisation." Doctoral thesis, Universitat Politècnica de València, 2013. http://hdl.handle.net/10251/27550.

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El hormigón armado compuesto de cemento Portland fue inventado hace algo más de un siglo aproximadamente y se ha convertido en el material más utilizado en la construcción. La durabilidad de este hormigón es una de las consideraciones más importantes a ser tenidas en cuenta en el diseño de nuevas estructuras y en la evaluación estructural de las ya existentes. Cuando un hormigón sujeto a un ambientes o cargas que puede degradarlo, como puede ser su uso en puentes y ambientes marinos o si contiene grandes cantidades de alúmina o áridos reciclados, el conocimiento o predicción de su

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4

Béreyziat, Antoine. "Étude du comportement thermomécanique de poutres mixtes acier-bois en situation d’incendie." Thesis, Ecully, Ecole centrale de Lyon, 2022. http://www.theses.fr/2022ECDL0005.

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La mixité acier-bois présente un fort potentiel de développement : les composants en bois et en acier peuvent se renforcer mutuellement ; le bois, par son caractère isolant, peut être utilisé pour protéger l'acier du feu ; l'acier apporte son caractère incombustible. Cette forme de mixité est pourtant peu répandue malgré le récent essor du bois dans la construction de bâtiments multiétagés, à cause du manque de références scientifiques et techniques sur le sujet. On propose alors d'étudier des poutres mixtes pour lesquelles l'acier et le bois sont associés de manière à obtenir des performances

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5

Reutter, Oliver. "Assessment of masonary flexural bond strength." Thesis, Kingston University, 2007. http://eprints.kingston.ac.uk/20328/.

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This thesis presents the results of an experimental assessment of masonry flexural bond strength. Since there is insufficient experimental data on key performance requirements for bond between units and mortar, investigations into the development of bond and flexural strength across a range of masonry units for both traditional and new mortar types, reflecting the recent changes in European standards, were conducted. In order to demonstrate the performance of bond between unit and mortar, the latter ranging from weak to strong, a practical bond wrench testing rig was developed for use with cou

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6

Heva, Yasintha Bandula. "Behaviour and design of cold-formed steel compression members at elevated termperatures." Queensland University of Technology, 2009. http://eprints.qut.edu.au/29310/.

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Cold-formed steel members have been widely used in residential, industrial and commercial buildings as primary load bearing structural elements and non-load bearing structural elements (partitions) due to their advantages such as higher strength to weight ratio over the other structural materials such as hot-rolled steel, timber and concrete. Cold-formed steel members are often made from thin steel sheets and hence they are more susceptible to various buckling modes. Generally short columns are susceptible to local or distortional buckling while long columns to flexural or flexural-torsional b

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7

Heva, Yasintha Bandula. "Behaviour and design of cold-formed steel compression members at elevated temperatures." Thesis, Queensland University of Technology, 2009. https://eprints.qut.edu.au/29310/1/Yasintha_Heva_Thesis.pdf.

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Cold-formed steel members have been widely used in residential, industrial and commercial buildings as primary load bearing structural elements and non-load bearing structural elements (partitions) due to their advantages such as higher strength to weight ratio over the other structural materials such as hot-rolled steel, timber and concrete. Cold-formed steel members are often made from thin steel sheets and hence they are more susceptible to various buckling modes. Generally short columns are susceptible to local or distortional buckling while long columns to flexural or flexural-torsional b

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8

Plochý, Ondřej. "Vývoj sklobetonů s vysokými mechanickými vlastnostmi." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-371943.

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This master thesis summarizes the current knowledge regarding the design and properties of glass fiber reinforced concrete products. It also deals with the design of a new concrete recipe for Dako spol. s.r.o company. There is verified effect of changes in input materials in real conditions the company to increase tensile bending strength above 20 MPa.In particular, verification of the use of building chemistry like superplasticizing additives, polymer-cement matrix or a change type or dose of glass fiber.

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9

GABRIEL, LEANDRO. "Preparação, irradiação e caracterização de blendas PEAD reciclado/EPDM." reponame:Repositório Institucional do IPEN, 2016. http://repositorio.ipen.br:8080/xmlui/handle/123456789/26946.

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Submitted by Marco Antonio Oliveira da Silva (maosilva@ipen.br) on 2016-12-22T16:34:05Z No. of bitstreams: 0<br>Made available in DSpace on 2016-12-22T16:34:05Z (GMT). No. of bitstreams: 0<br>A reciclagem de refugos é um processo estratégico que viabiliza a expansão do mercado de plásticos, podendo gerar novos produtos. A obtenção de blendas poliméricas é uma alternativa nesse processo, já que é conhecida a perda de propriedades mecânicas dos termoplásticos nas etapas de reprocessamento. Neste trabalho, o polietileno de alta densidade (PEAD) reciclado teve adições de borracha do monômero etil

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10

Choi, Wonchang. "Flexural Behavior of Prestressed Girder with High Strength Concrete." NCSU, 2006. http://www.lib.ncsu.edu/theses/available/etd-10302006-114609/.

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The advantages of using high strength concrete (HSC) have led to an increase in the typical span and a reduction of the weight of prestressed girders used for bridges. However, growing demands to utilize HSC require a reassessment of current provisions of the design codes. The objective of one of the research projects, recently initiated and sponsored by the National Cooperative Highway Research Program (NCHRP), NCHRP Project 12-64, conducted at North Carolina State University is to extend the use of the current AASHTO LRFD design specifications to include compressive strength up to 18,000 psi

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11

Jackson, Rahsean LaNaul. "Vibration and Flexural Strength Characteristics of Composite Castellated Beams." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/31242.

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With the development of lightweight concrete and design optimizations, floor vibration problems are becoming a serious serviceability problem. The castellated beam is a prime example and was the focus of this study. The vibration and flexural strength performance were verified in this paper. <p> The vibration characteristics of castellated beams were examined using experimental and analytical test methods. The effective moment of inertia is essential to accurately predict the frequency and deflection of a floor system due to human occupancy. Since castellated beams have non-prismatic cross-se

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12

Castañeda, López Mario Alexander. "Reciclagem de pavimentos flexíveis com adição de cimento Portland : estudo de fadiga através do ensaio de flexão em viga quatro pontos." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/149167.

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A reciclagem de pavimentos com adição de cimento Portland é uma técnica que permite reutilizar estruturas degradadas de pavimentos flexíveis na conformação de uma nova camada estabilizada. Seu dimensionamento, no Brasil, tem sido abordado de forma empírica. Entretanto, os métodos racionais desenvolvidos para pavimentos semirrígidos estão baseados principalmente na previsão da vida de fadiga das camadas cimentadas, associada ao nível de deformação atuante na sua fibra inferior. Com o intuito de contribuir no desenvolvimento de um método de dimensionamento de pavimentos com camadas recicladas co

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13

Heying, Jamie John Gratton David G. "Flexural strength of interim fixed prosthesis materials after simulated function." [Iowa City, Iowa] : University of Iowa, 2009. http://ir.uiowa.edu/etd/377.

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14

Hettiarachchi, M. T. P. "The theoretical prediction of the flexural strength of structural plywood." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/11768.

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15

Heying, Jamie John. "Flexural strength of interim fixed prosthesis materials after simulated function." Thesis, University of Iowa, 2009. https://ir.uiowa.edu/etd/377.

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Statement of Problem There are limited studies evaluating the effect of a cyclic load on interim fixed prosthetic materials and its effect on flexural strength. Purpose of Study 1) To verify the flexural strength of previously studied interim fixed prosthetic materials. 2) To establish the flexural strength of new, advanced generation and untested interim fixed prosthetic materials. 3) To determine the effect of cyclic load on the flexural strength of interim fixed prosthetic materials. Materials and Methods Bar-type specimens of Caulk Temporary Bridge Resin, VitaVM CC, Protemp 3 Garant and Ra

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16

Peng, Jun, and 彭军. "Strain gradient effects on flexural strength and ductility design of normal-strength RC beams and columns." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B48329630.

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The stress-strain characteristics of concrete developed in flexure is very important for flexural strength design of reinforced concrete (RC) members. In current RC design codes, the stress-strain curve of concrete developed in flexure is obtained by scaling down the uni-axial stress-strain curve to account for the strain gradient effect. Therefore, the maximum concrete stress that can be developed under flexure is smaller than its uni-axial strength, and the use of which always underestimates the flexural strength of RC beams and columns even though the safety factors for materials are taken

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17

Carlson, Ryne. "Flexural Strength of Steel Beams with Holes in the Tension Flange." University of Cincinnati / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1563527519192391.

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18

Higgs, Arek Tilmann. "Shear and Flexural Capacity of High Strength Prestressed Concrete Bridge Girders." DigitalCommons@USU, 2013. https://digitalcommons.usu.edu/etd/1757.

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The section of highway over the 400 South roadway in Orem, Utah is made up of two separate three span bridges. The bridges were originally constructed in 1960 and were expanded in 2004 to accommodate for one extra lane per bridge. During the fall of 2012 both bridges were scheduled for demolition and four girders were salvaged from the southernmost span of the 2004 expansion. These girders were transported to the Structural Materials And Systems Health Lab (SMASH Lab) where a series of tests were performed to determine the prestressing losses, flexural, shear, and shear-flexure capacity of the

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19

Yosefani, Anas. "Flexural Strength, Ductility, and Serviceability of Beams that Contain High-Strength Steel Reinforcement and High-Grade Concrete." PDXScholar, 2018. https://pdxscholar.library.pdx.edu/open_access_etds/4402.

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Utilizing the higher capacity steel in design can provide additional advantages to the concrete construction industry including a reduction of congestion, improved concrete placement, reduction in the required reinforcement and cross sections which would lead to savings in materials, shipping, and placement costs. Using high-strength reinforcement is expected to impact the design provisions of ACI 318 code and other related codes. The Applied Technology Council (ATC-115) report "Roadmap for the Use of High-Strength Reinforcement in Reinforced Concrete Design" has identified key design issues t

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20

Dolamune, Kankanamge Nirosha. "Structural behaviour and design of cold-formed steel beams at elevated temperatures." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/33221/1/Nirosha_Dolamune_Kankanamge_Thesis.pdf.

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Cold-formed steel members are extensively used in the building construction industry, especially in residential, commercial and industrial buildings. In recent times, fire safety has become important in structural design due to increased fire damage to properties and loss of lives. However, past research into the fire performance of cold-formed steel members has been limited, and was confined to compression members. Therefore a research project was undertaken to investigate the structural behaviour of compact cold-formed steel lipped channel beams subject to inelastic local buckling and yieldi

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21

Baumgarten, Lars. "Gesteinsmechanische Versuche und petrophysikalische Untersuchungen – Laborergebnisse und numerische Simulationen." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2016. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-202612.

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Dreiaxiale Druckprüfungen können als Einstufenversuche, als Mehrstufenversuche oder als Versuche mit kontinuierlichen Bruchzuständen ausgeführt werden. Bei der Anwendung der Mehrstufentechnik ergeben sich insbesondere Fragestellungen hinsichtlich der richtigen Wahl des Umschaltpunktes und des optimalen Verlaufs des Spannungspfades zwischen den einzelnen Versuchsstufen. Fraglich beim Versuch mit kontinuierlichen Bruchzuständen bleibt, ob im Versuchsverlauf tatsächlich Spannungszustände erfasst werden, welche die Höchstfestigkeit des untersuchten Materials repräsentieren. Die Dissertation greift

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22

Vorel, Pavel. "Vlastnosti betonů s přídavkem plazmatem upravených polypropylenových vláken." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-225879.

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Master‘s thesis focuses on concrete combined with polypropylen fibres produced commercially, fibres without surface modifications and fibres modificated by plasma. Most important topic of the thesis is experimental verification of influence of plasma modificated fibres on attributes of fresh concrete and physical-mechanical attributes of solidified concrete. Based on the results of the tests perfomed on examin units compares results and anylyses applicability of different fibre surface modifications.

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23

Brahmachari, Koushik, of Western Sydney Hawkesbury University, of Science Technology and Agriculture Faculty, and School of Construction and Building Sciences. "Connection and flexural behaviour of steel RHS filled with high strength concrete." THESIS_FTA_CBS_BRAHMACHARI_K.xml, 1997. http://handle.uws.edu.au:8081/1959.7/526.

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Steel hollow section members filled with concrete have been frequently used in recent construction industry as columns and beams and beam-columns because of their superior performance and constructability. Previous research demonstrated that such system has large energy absorption capacity which is critical in the event of an earthquake. By filling steel RHS with concrete, the failure of the steel shell due to local buckling can be delayed and the ductility of the concrete core can be improved as a result of the confinement of the steel shell. This type of composite section may be used in vari

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24

Tabassum, Javeria, and javeriaajaz@yahoo co in. "Analysis of current methods of flexural design for high strength concrete beams." RMIT University. Civil, Environmental & Chemical Engineering, 2008. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080725.143153.

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Considerable amount of research was carried out into the properties and structural performance of high strength concrete for more than few decades. Whilst this research has produced relevant and useful results, there are several properties of high strength concrete like compressive and tensile strengths, stiffness, durability etc. that need to be evaluated and investigated to determine an accurate representation for the determination of different structural properties of beams made of high strength concrete. For this purpose, an investigation into the behaviour of beams made of higher con

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25

Azzam, Mai Ahmed. "Flexural strength comparison of monolayer resin composite to bilayer resin/ liner composite." Thesis, Connect to resource online, 2009. http://hdl.handle.net/1805/2077.

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Thesis (M.S.D.)--Indiana University School of Dentistry, 2009.<br>Title from PDF t. p. (viewed Feb. 5, 2010) Advisor(s): Jeffrey A. Platt, Chair of the Research Committee, Joseph Legan, Carl J. Andres, David Brown, Burak Taskonak . Curriculum vitae. Includes abstract. Includes bibliographical references (leaves 45-52).

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26

Brahmachari, Koushik. "Connection and flexural behaviour of steel RHS filled with high strength concrete." Thesis, View thesis, 1997. http://handle.uws.edu.au:8081/1959.7/526.

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Steel hollow section members filled with concrete have been frequently used in recent construction industry as columns and beams and beam-columns because of their superior performance and constructability. Previous research demonstrated that such system has large energy absorption capacity which is critical in the event of an earthquake. By filling steel RHS with concrete, the failure of the steel shell due to local buckling can be delayed and the ductility of the concrete core can be improved as a result of the confinement of the steel shell. This type of composite section may be used in vari

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27

Brahmachari, Koushik. "Connection and flexural behaviour of steel RHS filled with high strength concrete /." View thesis, 1997. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030708.160244/index.html.

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Thesis (Ph. D.)--University of Western Sydney, Hawkesbury.<br>"Thesis presented for the Degree of Doctor of Philosophy, School of Construction and Building Sciences, Faculty of Science, Technology and Agriculture, University of Western Sydney, Hawkesbury, December 1997.

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28

Chen, Mantai, and 陈满泰. "Combined effects of strain gradient and concrete strength on flexural strength and ductility design of RC beams and columns." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/206429.

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The stress-strain relationship of concrete in flexure is one of the essential parameters in assessing the flexural strength and ductility of reinforced concrete (RC) structures. An overview of previous research studies revealed that the presence of strain gradient would affect the maximum concrete stress and respective strain developed in flexure. Previously, researchers have conducted experimental studies to investigate and quantify the strain gradient effect on maximum concrete stress and respective strain by developing two strain-gradient-dependent factors k3 and ko for modifying the flexu

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29

Alawadhi, Khaled N. "Correlation between flexural strength and denture base acrylic thickness overlaying implant stud attachments." Morgantown, W. Va. : [West Virginia University Libraries], 2010. http://hdl.handle.net/10450/11245.

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Thesis (M.S.)--West Virginia University, 2010.<br>Title from document title page. Document formatted into pages; contains viii, 49 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 41-48).

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30

Lee, Stephen Kim Lon. "Flexural strength of reinforced concrete beams strengthened using carbon fibre reinforced composite sheets." Thesis, University of Southampton, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.420192.

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31

ARAUJO, AELLINGTON FREIRE DE. "EXPERIMENTAL STUDY ON THE FLEXURAL STRENGTH OF CONCRETE BEAMS PRESTRESSED WITH SYNTHETIC TENDONS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1997. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=1927@1.

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COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>Nos últimos anos a protensão externa tem sido empregada tanto na recuperação e reforço de estruturas existentes quanto na concepção de novas estruturas. A protensão externa pode ser feita com cabos de aço ou com cabos sintéticos. Dentre esses, podem-se destacar os cabos Parafil, cujo núcleo é constituído de fibras kevlar. Essas fibras têm alta resistência (3700MPa), alto módulo de elasticidade (126000MPa) e excelente resistência à corrosão. Neste trabalho é feito um estudo do comportamento de vigas protendidas com cabos ext

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32

Reynolds, Kevin Brandt. "Evaluation of the flexural strength of cold-formed steel studs with embossed flanges." Manhattan, Kan. : Kansas State University, 2009. http://hdl.handle.net/2097/1504.

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33

Roth, Michael Jason 1975. "Flexural and tensile properties of thin, very high-strength, fiber-reinforced concrete panels." Master's thesis, Mississippi State : Mississippi State University, 2007. http://library.msstate.edu/etd/show.asp?etd=etd-11062007-215816.

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34

Islam, Md Shahidul. "Shear capacity and flexural ductility of reinforced high- and normal-strength concrete beams." Thesis, Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B1766536X.

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35

Carter, Jeffrey Scott. "Effects of Low Velocity Impact on the Flexural Strength of Composite Sandwich Structures." DigitalCommons@CalPoly, 2014. https://digitalcommons.calpoly.edu/theses/1327.

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The use of composite sandwich structures is rapidly increasing in the aerospace industry because of their increased strength-to-weight and stiffness-to-weight characteristics. The effects of low velocity impacts on these structures, however, are the main weakness that hinders further use of them in the industry because the damages from these loadings can often be catastrophic. Impact behavior of composite materials in general is a crucial consideration for a designer but can be difficult to describe theoretically. Because of this, experimental analysis is typically used to attempt to describe

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36

Mohr, Benjamin Alan. "Investigation of Ultimate Bending Strength of Steel Bracket Plates." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/31172.

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Currently, the design model for flexural rupture of an eccentrically loaded bracket plate is based on the material tensile rupture strength times the net elastic section modulus. Different bolt and plate sizes were tested to determine if this model is correct. It was found that the current model is conservative and that the material tensile rupture strength times the net plastic section modulus is a superior design model. Also, limited finite element modeling was performed to predict the elastic stiffness of such connections. The resulting data correlates well with test results, and confirms t

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37

Nassar, Adil J. "Investigation of Transfer Length, Development Length, Flexural Strength and Prestress Loss Trend in Fully Bonded High Strength Lightweight Prestressed Girders." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/32941.

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Encouraged by the performance of high performance normal weight composite girders, Virginia Department of Transportation has sought to exploit the use of high strength lightweight composite concrete (HSLWC) girders to achieve economies brought about by the reduction of dead loads in bridges. Transfer Length measurements conducted on two AASHTO Type IV HSLWC prestressed girders, resulted in an average transfer length of 17 inches, well below the AASHTO and ACI guidance. Two girders composed of HSLWC AASHTO Type II girders and a 48" x 8" normal weight 4000-psi concrete deck were produced. The

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38

Akella, Sriram. "Design and test of lead-zirconate-titanate flexural plate wave based actuators." [Tampa, Fla.] : University of South Florida, 2005. http://purl.fcla.edu/fcla/etd/SFE0001001.

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39

Yang, Jing 1988. "Grinding effects on surface integrity, flexural strength and contact damage resistance of coated hardmetals." Doctoral thesis, Universitat Politècnica de Catalunya, 2016. http://hdl.handle.net/10803/396135.

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This thesis assesses the influence of substrate surface integrity on different mechanical (flexural strength and contact damage resistance under spherical indentation) and tribological (scratch resistance as well as cracking and delamination response under Brale indentation) properties for a TiN-coated fine-grained hardmetal grade (WC-13 wt.%Co). In doing so, three different surface finish conditions are studied: as-sintered (AS), ground (G), mirror-like polished (P) and ground plus thermal annealed (GTT). Moreover, a relevant part of the work is devoted to nude hardmetal substrates. The resu

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40

Cattell, Michael James. "The crystallisation and flexural strength optimisation of leucite reinforced glass ceramics for dental applications." Thesis, Queen Mary, University of London, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.410040.

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41

Yang, Jing. "Grinding effects on surface integrity, flexural strength and contact damage resistance of coated hardmetals." Doctoral thesis, Linköpings universitet, Nanostrukturerade material, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-127341.

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The tribological and mechanical behavior of coated tools depends not only on intrinsic properties of the deposited film but also on substrate surface and subsurface properties – such as topography and residual stress state – as well as on interface adhesion strength. It is particularly true in the case of coated tools based on WC-Co cemented carbides (backbone materials of the tool manufacturing industry, and simply referred to as hardmetals in practice) as substrates. Manufacturing of hardmetals often involves grinding, and in the case of cutting tools also edge preparation, etching and coati

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Abdelaal, Maged Mohamed Elsayed. "Effect of post- processing heat treatment on flexural strength of zirconia for dental applications." Thesis, University of Iowa, 2016. https://ir.uiowa.edu/etd/3031.

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Purpose: the purpose of this study was to evaluate the effect of annealing heat treatment on biaxial flexural strength and reliability of 3Y-TZP, sintered at various temperatures. Materials & methods: 3Y-TZP blanks were pre-sintered at 850°C for 2 hours and sliced into discs (20x1.2mm). Specimens were randomly assigned to 5 groups and subsequently sintered at various temperatures ranging from 1350°C to 1650°C for 2 hours. For each sintering temperature, specimens were divided into three treatment groups. One group (n=20) was left as-sintered as control. One group was air-abraded with 50 micron

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NAKAMURA, Hikaru, Naoshi UEDA, Minoru KUNIEDA, and Choonghyun KANG. "AUTOGENOUS HEALING PROPERTIES OF CONCRETE UNDER FLEXURAL LOADING." 日本コンクリート工学会, 2011. http://hdl.handle.net/2237/20958.

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Ribeiro, Daniela Garcia [UNESP]. "Efeito da irradiação por microondas sobre a resistência à flexão e dureza de resinas acrílicas para reembasamento imediato." Universidade Estadual Paulista (UNESP), 2004. http://hdl.handle.net/11449/97304.

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Made available in DSpace on 2014-06-11T19:28:55Z (GMT). No. of bitstreams: 0 Previous issue date: 2004-12-16Bitstream added on 2014-06-13T19:16:51Z : No. of bitstreams: 1 ribeiro_dg_me_arafo.pdf: 507473 bytes, checksum: 1c6ba03d7141c053da8a5a15fc65d0c1 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>O uso do microondas tem sido indicado como um método efetivo na desinfecção de resinas acrílicas. Entretanto, há pouca informação sobre o efeito da irradiação do microondas nas propriedades mecânicas

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Esposito, Alessandro. "Creep deflection of low-strength reinforced concrete flexural members strengthened with carbon fiber composite sheets." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/10340/.

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The low-strength concrete is defined as a concrete where the compressive cubic strength is less than 15 MPa. Since the beginning of the last century, many low-strength concrete buildings and bridges have been built all over the world. Being short of deeper study, composite sheets are prohibited in strengthening of low-strength reinforced concrete members (CECS 146; ACI 440). Moreover, there are few relevant information about the long-term behavior and durability of strengthened RC members. This fact undoubtedly limits the use of the composite materials in the strengthening applications, there

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Collins, Travis Collins. "Estimating in-situ flexural strength of heat-affected prestressed concrete beams using constituent material models." Connect to this title online, 2008. http://etd.lib.clemson.edu/documents/1219953974/.

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Yu, Zhou. "Flexural strength of lithospere in central Asia and development of intracontinental orogens : the Tien Shan." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/10718.

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Li, How-Way, and 李豪偉. "Test and Analysis for Strength and Flexural Rigidity of RC Arches." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/11500918248233049213.

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碩士<br>國立成功大學<br>建築(工程)學系<br>85<br>Copyright (c) 1990, Microsoft Corp 本文研究之目的在探討具足夠的吊筋(Hanger)的RC拱，受面內垂直載重作用下，企圖尋求其撓曲強度與剛度的預測、環狀裂縫載重預測、抗剪強度及韌性之檢討。本文共試驗9支RC拱足尺試體。試體包含不同的主筋配筋比、箍(吊)筋量、間距等。試體尺寸內徑110cm、外徑150cm、拱深40cm、拱寬25cm。試驗加載方式採集中載重一週次加載。分析時以RC理論及試驗的行為作基礎，分析RC拱受垂直載重後的力學行為，並建立載重-位移曲線之預測模式。分析值與試驗值的比較亦考量陳蔚文碩論試驗中部份試體。本文獲得的結論： 1.應變以雙曲線分佈模擬，積分應力後求得撓曲強度，可合理地預測RC拱撓曲開裂載重、屈服載重及極限載重。 2.RC拱撓曲開裂後有效剛度，以Mcr、Mmax、Ig、Icr及ρ為變數之經驗公式來模擬，計

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HSU, KUN-YANG, and 許坤洋. "The Study of Die Flexural Strength Test For Wafer Level Package." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/a8zhq6.

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碩士<br>國立高雄大學<br>電機工程學系-電子構裝整合技術產業碩士專班<br>106<br>This paper is study for flexural strength test of one of the die reliability test to evaluate the flexural strength of IC samples. Previous, sample die was placed on fixture and broken the die repeatedly. However, it causes die shift and miss alignment that causes errors of the strength measurement. Therefore, we have designed a new fixture of plastic model to improve the problem. Since the material of the plastic is easily broken, a fixture of ABS material formed by 3D printing technology to improve the stability in measuring and to improve the

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Zheng, Sheng-Ren, and 鄭勝仁. "Development length of deformed bar in tension for high strength concrete flexural test of beam." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/81347509473793283431.

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