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101 results for “CRAC”
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Research ArticleOpen accessIn the keywordsThe Use of Swimmer Bars as Shear Reinforcement in Reinforced Concrete BeamMoayyad Al-Nasra, Naem Asha, Abdelqader Najmi, Taher Abu-LebdehThe behavior of reinforced concrete beams at failure by shear is distinctly different from their behavior by bending, which is considered to be unsafe mode of failure. The shear failure of beams is usually sudden without sufficient advanced warning and the diagonal cracks that develop due to excess shear forces are considerably wider than the flexural cracks. The cost and … …American Journal of Engineering and Applied Sciences, Vol. 6, Issue 1 · 15 Mar 2013 · 8,134 accessesView PDFCite
Research ArticleOpen accessIn the keywordsFlexural and Tensile Characteristics of Micro Fiber-Reinforced Very High Strength Concrete Thin PanelsTaher M. Abu-Lebdeh, Ellie Fini, Monique LumpkinThe purpose of this research was to experimentally characterize the flexural and tensile characteristics of fiber-reinforced Very High-Strength Concrete (VHSC) panels. The panels were made with a unique mix of cementitous materials achieving compressive strength of 26,000 psi (180 MPa) or greater. VHSC panels were reinforced with polypropylene fibers of 1 inch (25.4 mm) in length and Polyvinyl alcohol (PVA) … …American Journal of Engineering and Applied Sciences, Vol. 5, Issue 2 · 17 Aug 2012 · 8,495 accessesView PDFCite
Research ArticleOpen accessIn the keywordsIterative Process to Improve Simple Adaptive Subdivision Surfaces Method for Triangular MeshesNoor Asma Husain, Mohd Shafry Mohd Rahim, Abdullah BadeProblem statement: Subdivision surfaces were applied to the entire meshes in order to produce smooth surfaces refinement from coarse mesh. Several schemes had been introduced in this area to provide a set of rules to converge smooth surfaces. However, to compute and render all the vertices are really inconvenient in terms of memory consumption and runtime during the subdivision process. … …Journal of Computer Science, Vol. 7, Issue 7 · 30 Jun 2011 · 6,926 accessesView PDFCite
Research ArticleOpen accessIn the keywordsShear Strength of Reinforced Concrete Beam Strengthened by Transverse External Post-tensionSayan Sirimontree, Boonsap Witchayangkoon, Nathavudh Khaosri, Jaruek TeerawongProblem statement: Shear failure of concrete beam is brittle manner without warning so inadequate design for shear of beam and/or material deterioration lead to the possibility of sudden failure of beam. The change of functional use and future increased load of structure lead to the need for strengthening of concrete structure. Approach: This research focuses on behaviors under static loading … …American Journal of Engineering and Applied Sciences, Vol. 4, Issue 1 · 31 Jan 2011 · 8,863 accessesView PDFCite
Research ArticleOpen accessIn the keywordsInfluence of Process Parameters on Electrical Discharge Machined Job Surface IntegrityA.K.M. Asif Iqbal, Ahsan Ali KhanProblem statement: Electrical Discharge Machining (EDM) is the most widely used non conventional machining process for removing material from workpiece by means of a series of repeated electric discharges. Electrical Discharge milling (ED-milling) is an emerging technology where a cylindrical tool electrode follows a programmed path in order to obtain the desired shape of a part. During machining of metals … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 2 · 30 Jun 2010 · 8,584 accessesView PDFCite
Research ArticleOpen accessIn the keywordsOn Micromechanisms of Hydrogen Plastification and Embrittlement of Some Technological MaterialsYu. S. Nechaev, T. N. VezirogluSome fundamental problems of revealing micromechanisms of hydrogen plastification, superplasticity, embrittlement, cracking, blistering and delayed fracture of some technologically important industrial metallic materials are formulated. The ways are considered of these problems' solution and optimizing the technological processes and materials, particularly in the hydrogen and gas-petroleum industries, some aircraft, aerospace and automobile systems. …American Journal of Applied Sciences, Vol. 2, Issue 1 · 31 Jan 2005 · 6,864 accessesView PDFCite
Research ArticleOpen accessIn the keywordsProduction of High-Performance Silica Fume ConcreteOmar Asad AhmadThis research aimed to produce concrete that will decrease disadvantages of portland concrete and resolve it. Mixture of Silica fume with concrete in this paper shows that the strength and hardness are increased. In this research the main gools is to compare the deference of compressive strength between standred concrete and concrete with silica fume with different additives ratio and … …American Journal of Applied Sciences, Vol. 14, Issue 11 · 25 Nov 2017 · 8,775 accessesView PDFCite
Research ArticleOpen accessIn the abstractComparative Study of Properties of Biopolymers from Corn Starch with Addition of Microalgae Spirulina platensisJúllia Koury Abreu, Loraynne Coelho Pereira, José Izaquiel Santos da SilvaThe discovery of the environmental impacts caused by petroleum-based polymers has led to the use of natural polymers gaining more and more space. Naturally occurring polymers, also known as biopolymers, are chemical compounds produced by living things or raw materials from renewable energy sources. Their main advantage is decomposition, while polymers from fossil and non-renewable energies can take hundreds of … …American Journal of Engineering and Applied Sciences, Vol. 16, Issue 1 · 16 Mar 2023 · 6,026 accessesView PDFCite
Research ArticleOpen accessIn the abstractDesign, Fabrication and Operational Evaluation of a Co-Pyrolysis System for Waste-Plastics Derived Fuels: A Study of Edo NorthKevin Otoikhian, Ubani Oluwaseun Amune, Kennedy Edogamhe et al.This research work designed, developed and assessed the performance of a co-pyrolysis system generating waste-plastic extract fuels from mixed Municipal Waste Plastics (MWP) while evaluating High-Density Polyethylene (HDPE), Polypropylene (PP) and Polystyrene (PS) as the main municipal waste plastic sources. The materials selected for the reactor were carefully studied to meet the pyrolysis system's strength, operability and safety requirements. The … …American Journal of Engineering and Applied Sciences, Vol. 15, Issue 1 · 18 Jan 2022 · 7,517 accessesView PDFCite
Case ReportOpen accessIn the abstractDemonstration of the Structural Resiliency of Damaged Sentryglas Laminated Heat Strengthened Glass Fins in Full Scale TestingFred Veer, Diana de Krom, Rob NijsseA unique structural design was made for the glass façade of the Co-Creation Center building in Delft. The roof is completely carried by the glass fins. The fins are laterally stabilized by being included in the triple glazed façade. To certify the safety of the design full scale tests on the fins were done at Delft University of Technology. Due … …International Journal of Structural Glass and Advanced Materials Research, Vol. 5, Issue 1 · 11 Feb 2021 · 6,320 accessesView PDFCite