ABSTRACT The task of designing a mechanical component with design software then reverse engineering the same component in hyper mesh was assigned to groups. The engineering component chosen by group 10 is a piston for standard automobiles. The design is then accessed and redesigned for the primary purpose of improving the product. This group 10 the principle area of improvement is the weight‚ to achieve this‚ the initial material choice for design medium carbon steel is changed to aluminium alloy
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CLTs were performed with different exposure time‚ with different grain directions of ST (short-transverse) and L (longitudinal) to understand how the testing parameters affected on the SCC susceptibility of Al 2024-T351. The percent reductions in tensile elongation in an SCC-causing environment over those in air tended to express the SCC susceptibility of Al 2024-T351 most properly for both SSRT and CLT. The present fractographic examination suggested that both anodic dissolution and hydrogen embrittlement
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manufacture ribs‚ stiffeners and other elements from the PPS composites. The individual components are welded together to form a strong‚ inseparable unit. This process eliminates the need for costly drilling & riveting operations & achieves higher strength and safety – reducing weight & saves time and money. Components made from PPS composites remain hard‚ impact-resistant‚ stiff & stable‚ even when exposed to high temperatures. PPS is also resistant to aviation fuel‚ engine and hydraulic
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of proportional limit *The toughness was approximated by using total area under curve and applying Riemann Sum 5. Determine Engineering Ultimate and Breaking Strength of the samples tested: Copper UTS 22‚222 & Breaking Strength 25‚770 psi Aluminum UTS 13‚333 and Breaking Strength 18‚933 psi Polyester UTS 15‚555 and Breaking Strength 20‚266 psi 6. Percent Elongation at break: [Lf-lo/lo]*100 Copper =17% Aluminum=4.44% Polyester=18.76% 7. Compare published values including % differences and
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bridges and aqueducts that could stand in conditions that would damage or destroy earlier designs. Some still stand today. An example is the Bridge‚ built over the river Tagus‚ in Spain. The Romans also used cement‚ which reduced the variation of strength found in natural stone. One special type of cement they used consisted of water‚ lime‚ sand‚ and volcanic rock. Brick and mortar bridges were built after the Roman era‚ as the technology for cement was lost then later rediscovered. Although large
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deformation is entirely elastic‚ calculate the modulus of elasticity of the aluminum. 6.24 Figure 6.21 shows the tensile engineering stress-strain behavior for a steel alloy. a. What is the modulus of elasticity? b. What is the proportional limit? Approximately 1370 MPa (200‚000 psi). c. What is the yield strength at a strain off-set of 0.002? 1570 MPa (228‚000 psi). d. What is the tensile strength? Approximately 1970 MPa (285‚000 psi). 6.38
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VORTEX SPUN YARN VS. AIR-JET SPUN YARN Dr.N.Ramakrishnan MTech CText ATI (UK)PhD(Cal.‚USA) Abstract Vortex spinning can be viewed as a refinement of jet spinning‚ or a natural development in fasciated yarn technology. As in all other fasciated yarns‚ the structure of vortex yarn consists of a core of parallel fibres held together by wrapper fibres. This has been revealed by examining an untwisted vortex yarn sample under the Scanning Electron Microscope. Subsequently‚ the physical properties
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A. and Edie. D. D.(2001). A comparative analysis of alternative models to predict the tensile strength of untreated and surface oxidised carbon fibers. Carbon‚39‚ 1091–101. Rocky Mountain Institute (RMI). (2011). Comparison of carbon fiber vs steel manufacturing costs. Retrieved June 29th‚ 2012 from: http://www.rmi.org/RFGraph-carbonfiber_vs_steel_manufacturing Safarova‚ V Sato‚ T and Kurumada‚ A. (1989). Tensile Properties and Fracture Toughness of Carbon-Fiber Felt Reinforced Carbon Composites at
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[pic] [pic] 1. Executive Summary 2. Objectives of the Study 3. Limitations of the report 4. Methodology 1. Executive Summary BSRM Steels Ltd is one of the leading manufacturers of different bars in Bangladesh and also the market leader of the steels industry. Its Head office and factory are situated in Chittagong. BSRM’s driving force has been its ability to develop new technology combined with a technical
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Predicting the compressive and tensile strength of rocks from indentation hardness index by S. Kahraman*‚ M. Fener†‚ and E. Kozman‡ Synopsis The prediction of rock properties from indirect testing methods is important‚ particularly for preliminary investigations since indirect tests are easier and cheaper than the direct tests. In this study‚ we investigate the predictability of the uniaxial compressive strength (UCS ) and Brazilian tensile strength (BTS ) of rocks from the indentation hardness
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