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Relevant bibliographies by topics / Vacuum assisted resin transfer molding (VARTM) / Dissertations / Theses

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Dissertations / Theses on the topic 'Vacuum assisted resin transfer molding (VARTM)'

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Published: 4 June 2021

Last updated: 3 February 2022

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1

Song, Xiaolan. "Vacuum Assisted Resin Transfer Molding (VARTM): Model Development and Verification." Diss., Virginia Tech, 2003. http://hdl.handle.net/10919/27168.

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In this investigation, a comprehensive Vacuum Assisted Resin Transfer Molding (VARTM) process simulation model was developed and verified. The model incorporates resin flow through the preform, compaction and relaxation of the preform, and viscosity and cure kinetics of the resin. The computer model can be used to analyze the resin flow details, track the thickness change of the preform, predict the total infiltration time and final fiber volume fraction of the parts, and determine whether the resin could completely infiltrate and uniformly wet out the preform. Flow of resin through the prefo

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2

Sayre, Jay Randall. "Vacuum-Assisted Resin Transfer Molding (VARTM) Model Development, Verification, and Process Analysis." Diss., Virginia Tech, 2000. http://hdl.handle.net/10919/27034.

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Vacuum-Assisted Resin Transfer Molding (VARTM) processes are becoming promising technologies in the manufacturing of primary composite structures in the aircraft industry as well as infrastructure. A great deal of work still needs to be done on efforts to reduce the costly trial-and-error methods of VARTM processing that are currently in practice today. A computer simulation model of the VARTM process would provide a cost-effective tool in the manufacturing of composites utilizing this technique. Therefore, the objective of this research was to modify an existing three-dimensional, Resin Film

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3

Grimsley, Brian William. "Characterization of the Vacuum Assisted Resin Transfer Molding Process for Fabrication of Aerospace Composites." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/36062.

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This work was performed under a cooporative research effort sponsored by the National Aeronautics and Space Administration (NASA) in conjunction with the aerospace industry and acedemia. One of the primary goals of NASA is to improve the safety and affordability of commercial air flight. Part of this goal includes research to reduce fuel consumption by developing lightweight carbon fiber, polymer matrix composites to replace existing metallic airframe structure. In the Twenty-first Aircraft Technology Program (TCAT) efforts were focused on developing novel processing methods to fabricate tailo

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4

McGrane, Rebecca Ann. "Vacuum Assisted Resin Transfer Molding of Foam Sandwich Composite Materials: Process Development and Model Verification." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/42108.

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Vacuum assisted resin transfer molding (VARTM) is a low cost resin infusion process being developed for the manufacture of composite structures. VARTM is being evaluated for the manufacture of primary aircraft structures, including foam sandwich composite materials. One of the benefits of VARTM is the ability to resin infiltrate large or complex shaped components. However, trial and error process development of these types of composite structures can prove costly and ineffective. Therefore, process modeling of the associated flow details and infiltration times can aide in manufacturing des

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5

Saw, Kee Hong. "Simulation on filling pattern of vacuum assisted resin transfer molding (VARTM) for sectional wind blade shells." Thesis, Wichita State University, 2012. http://hdl.handle.net/10057/5610.

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The Vacuum Assisted Resin Transfer Molding (VARTM) process is one of the most common and economical processes which has been adapted by many wind blade manufacturers. The significant advantages for this process primarily owed to its simplicity as well as its lower cost of operation. Nevertheless, there are several potential drawbacks from this process such as the delamination and the dryspot issues. The dryspot issue will be the main focus in this thesis. In this thesis, the methodology includes 3-D solid modeling, finite element modeling and injection simulations. Throughout the framework of

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6

Robinson, Marc J. "Simulation of the vacuum assisted resin transfer molding (VARTM) process and the development of light-weight composite bridging." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2008. http://wwwlib.umi.com/cr/ucsd/fullcit?p3336692.

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Thesis (Ph. D.)--University of California, San Diego, 2008.<br>Title from first page of PDF file (viewed January 9, 2009). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references (p. 482-492).

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7

Larsson, Turtola Simon, and Adam Rönnbäck. "Utredning av tillverkningsinducerade avvikelser i fiberförstärkt komposit genom blandningsexperiment : En fallstudie enligt DMAIC vid ABB Composites." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-80031.

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Tillämpningen av fiberförstärkt polymerkomposit har senaste decenniet ökat kraftigt inom flertalet högteknologiska branscher. Trots framgången är förekomsten av tillverkningsinducerade avvikelser fortfarande en utmaning. Avvikelserna försämrar materialets mekaniska egenskaper och förkortar dess livslängd, vilket orsakar kassationer, miljöbelastningar och försvårad produktetablering för industriaktörer. ABB Composites i Piteå står inför en liknande situation. Företaget producerar cylindriska isolatorer i fiberförstärkt komposit till högspänningsindustrin, och behöver utreda förekomsten av en sp

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8

Sun, Xiudong. "Analysis of vacuum-assisted resin transfer molding /." The Ohio State University, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487950658548618.

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9

Al, Omari Ali. "Effect of vacuum level on the vacuum-assisted resin transfer molding process." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0002/MQ43656.pdf.

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10

Vogt, Christian. "An experimental cost model for composite parts using vacuum assisted resin transfer moulding (VARTM)." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6579.

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Thesis (MScEng (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2011.<br>ENGLISH ABSTRACT: Vacuum assisted resin transfer moulding (VARTM) belongs to the category of resin infusion techniques that use lower than atmospheric pressure to infiltrate a reinforced cavity. This technique has various advantages; however, manufacturing costs can be relatively high due to more difficult shapes fabricated and a lack of knowledge regarding cost driving factors. The objective of this study was to develop a cost model for composite parts. Such a model allows the estimation of man

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11

Cauthen, Stephen Michael. "Vacuum assisted resin transfer molding in the repair of reinforced concrete bridge structures." Birmingham, Ala. : University of Alabama at Birmingham, 2008. https://www.mhsl.uab.edu/dt/2008m/cauthen.pdf.

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12

Yang, Huan. "Integrated analysis of unsaturated polyester and Vinylester Resins in vacuum-assisted resin transfer molding (SCRIMP) /." The Ohio State University, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=osu1488205318511314.

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13

Xu, Liqun. "Integrated analysis of liquid composite molding (LCM) processes." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1095688597.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xix, 245 p.; also includes graphics. Includes bibliographical references (p. 233-245).

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Miskbay, Onur Adem. "Process Characterization Of Composite Structures Manufactured Using Resin Impregnation Techniques." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610351/index.pdf.

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The aim of this study is to investigate and compare the properties of two layer carbon epoxy composite plates manufactured using various resin impregnation techniques<br>Resin Transfer Molding (RTM), Light RTM (LRTM), Vacuum Assisted RTM (VARTM) and Vacuum Packaging (VP). Throughout the study a different packaging method was developed and named Modified Vacuum Packaging (BP). The mechanical properties of composite plates manufactured are examined by tensile tests, compressive tests, in-plane shear tests and their thermal properties are examined by Differential Scanning Calorimetry (DSC) and Th

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15

Li, Jing Zhang Chuck Wang Ben. "Modeling, design and control of vacuum assisted resin transfer molding (VARTM) for thickness variation reduction." 2006. http://etd.lib.fsu.edu/theses/available/07012006-135801.

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Thesis (Ph. D.)--Florida State University, 2006.<br>Advisors: Chuck Zhang, Ben Wang, Florida State University, College of Engineering, Dept. of Industrial and Manufacturing Engineering. Title and description from dissertation home page (viewed Sept. 18, 2006). Document formatted into pages; contains xiii, 168 pages. Includes bibliographical references.

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16

Liu, Kuan-Chih, and 劉冠志. "The Application of Fiber Optic Sensors for Monitoring Resin Flow Frout in Vacuum Assisted Resin Transfer Molding (VARTM) Process." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/99502062622467237128.

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碩士<br>臺灣大學<br>工程科學及海洋工程學研究所<br>98<br>The optic fiber is the commonly used in communication, after special processing it can be made a sensing part. At present, fiber optic sensors are applied generally in civil engineering and aeronautics, astronautics engineering for monitoring. The fiber grating sensor unified many merits, for example, the volume is small, the diameter thin and mass is light, not electromagnetic wave disturbance, High transmission, Anti-corrosive, thermostable, easy to embedded in the structure and establish quasi-distributional multiplex monitor network, It’s suitable in th

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17

Chen, Chun-Hao, and 陳俊豪. "Process development and experimental validation of composites carbon fiber reinforced plastics(CFRP) vacuum assisted resin transfer molding (VARTM) technique ---1/5 scale down automobile bonnet model as an example." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/y3xnx5.

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碩士<br>國立中央大學<br>機械工程學系在職專班<br>104<br>ABSTRACT Low-cost non-autoclave, lightweight carbon fiber reinforced resin matrix composites (CFRP) components are widely used in automobile industry. This thesis is used a smaller-scale model (1:5) of automotive bonnet as an example, to systematically investigate the key issues in the development and implementation of assisted resin transfer molding process (VARTM) technology. Key issues such as development conversion design, simulation process parameters of VARTM and prototyping flexibility. In conclusion, this thesis successfully implements the develope

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18

WANG, PO-TANG, and 王柏棠. "Application of Computational Simulation on Vacuum Assisted Resin Transfer Molding Technologies." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/zcuy6t.

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碩士<br>大葉大學<br>工業工程與管理學系<br>106<br>This study uses computer aided engineering to implement vacuum assisted resin transfer molding technology, and through analysis to find the optimum process parameters. At present, this process is prone to short shot, entrapped air, and incomplete design of gate. At the beginning of the study, Moldex3D software was used to simulate the phenomenon of pressure gradient and surface velocity caused by the difference of permeability when the resin flows through the fiber cloth under constant flow rate filling and grasp the trend of resin flow wave, conversion rate a

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19

SANDOYASALAZAR, MOISES BOLIVAR, and 孫摩西. "The Fabrication of a Wind Turbine Blade with Vacuum Assisted Resin Transfer Molding." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/86578210356297081386.

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碩士<br>國立成功大學<br>航空太空工程學系碩博士班<br>100<br>Composite materials are composed by two or more materials. It has multiple advantages of light weight and high strength and is highly popular in the aerospace and automobile industry. VARTM is used to fabricate parts with a combination of epoxy resin and woven glass fiber. The purpose of this research is to identify different ways to fabricate polymer composite parts with VARTM and afterwards choosing the one with the best outcome and fabricate a wind turbine blade. There are three different ways used to build parts using VARTM. After concluding that the

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20

Jhih-Yu-Yang and 楊智宇. "Study on the processability of vacuum assisted resin transfer molding for fiber reinforced polyurethane." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/86780194093883763449.

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碩士<br>國立勤益科技大學<br>化工與材料工程系<br>103<br>In this study, we had investigated the reactivity, rheological and processing parameter of several polyurethane(UM、UB、UH) and an epoxy(EP) resin first. From the results of analysis, we had chosen the formula which can use in vacuum assisted resin transfer molding (VARTM) process suitably, as well as evaluated the effect of vacuum pressure (50.5 kPa、76 kPa、101.3 kPa) on the performance. Then prepared the PU composites with different fiber (CF、GF) by VARTM process to analyze the effect of mechanical properties and thermal properties, and finally observed the

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21

Li, Shu-Yu, and 李書宇. "Study on the Surface Properties of Composites Made by Air Cushion Method of Vacuum Assisted Resin Transfer Molding." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/13085530989168673758.

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碩士<br>高苑科技大學<br>機械與自動化工程研究所<br>102<br>A new technique, called air cushion method (ACM), is developed to reduce the resin infusion time in vacuum assisted resin transfer molding ( VARTM ) by improving the bag structure. In ACM, a novel vacuum bag consisting of a film and several air cushions replaces single bag utilized in traditional VARTM. During filling, the novel vacuum bag is placed over the perform and seals against the mold to create an airtight cavity. As vacuum is drawn in the cavity, the ambient pressure is applied on the bag that compacts the perform. The isolated air cushions can fo

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