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Mechanical Engineering Questions

$10-30 USD

Completed
Posted about 7 years ago

$10-30 USD

Paid on delivery
Hello all, I need someone to complete 10 engineering questions based on topics such as fluids, energy, materials behavior and mechanics. I have written a sample question below, if you are interested then send it back with full working in your response. An aluminum alloy has an average grain size of 600 µm and a 0.2% proof stress of 160 MN m^-2. After cold work and recrystallization, the grain size is reduced to 80 µm. Given that the constant in the Hall-Petch equation is 95 MN m^-2 for this particular alloy, what proof stress could be expected in the alloy in its worked and recrystallized condition? Happy bidding!
Project ID: 13475895

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14 proposals
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Active 7 yrs ago

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$40 USD in 3 days
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hello dear, I'm Mohamed saeed mechanical and aeronautical engineer. I have checked your job description and I'm ready to do it with solving any problems.
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An aluminum alloy has an average grain size of 600 µm and a 0.2% proof stress of 160 MN m^-2. After cold work and recrystallization, the grain size is reduced to 80 µm. Given that the constant in the Hall-Petch equation is 95 MN m^-2 for this particular alloy, what proof stress could be expected in the alloy in its worked and recrystallized condition? Hello sir, i have read the project details and understood the requirement. i have 20 years of experience in Design and Manufacturing. My expertise is -Product design (Electro mechanical, Automotive and Not Automotive) -3d modeling, 3d rendering, Reverse engineering. -Plastic mold design,Stamping di Proposal: Hello sir, i have read the project details and understood the requirement. i have 20 years of experience in Design and Manufacturing. My expertise is -Product design (Electro mechanical, Automotive and Not Automotive) -3d modeling, 3d rendering, Reverse engineering. -Plastic mold design,Stamping die design, progressive die design, jigs/fixture. -SPM, Equipment,Machine building. -3d printing -CNC programming i worked on aluminium, sheet metal, plastic, wood, Acrylic and other engineering plastics. i have strong skill in Solid works, Creo,Catia, Autocad, Mould flow, Ansys. please have a look my profile and client review and let me know the if any. please send me the details. Thanks uday
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An aluminum alloy has an average grain size of 600 µm and a 0.2% proof stress of 160 MN m^-2. After cold work and recrystallization, the grain size is reduced to 80 µm. Given that the constant in the Hall-Petch equation is 95 MN m^-2 for this particular alloy, what proof stress could be expected in the alloy in its worked and recrystallized condition? My Whatsapp: +92 321 6624970 I am an Electrical Engineer having specialization in Electronics and Control, teaching at Electrical Department FAST National University Pakistan. I am also persuing my MS degree in Electrical Engineering with specialization in CONTROL. I have taught the followings cou Proposal: My Whatsapp: +92 321 6624970 I am an Electrical Engineer having specialization in Electronics and Control, teaching at Electrical Department FAST National University Pakistan. I am also persuing my MS degree in Electrical Engineering with specialization in CONTROL. I have taught the followings courses, and also done many projects related to these subjects as well as related to consumer electronics products. 1. Control System Design & Modelling (Continuous, Discrete, Linear, Non-Linear, Optimal, Fuzzy Logic + Matlab & Simulink) 2. Digital System/Logic Design (Verilog, VHDL, Logisim) 3. Digital Signal Processing (MATLAB) 4. Micro-controllers (8051, Arduino, PIC) 5. Power Electronics (PSIM, MATLAB, PSpice) 6. Control of Electric Machine Drives 7. Circuit Analysis and Designe etc 8. PCB Design (Proteous + Ultiboard + Altium Designer) I assure you, if you assign your project to me, you surely gonna work with me in future. Note: I also provide the services in Mechanical Engineering Projects.
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An aluminum alloy has an average grain size of 600 µm and a 0.2% proof stress of 160 MN m^-2. After cold work and recrystallization, the grain size is reduced to 80 µm. Given that the constant in the Hall-Petch equation is 95 MN m^-2 for this particular alloy, what proof stress could be expected in the alloy in its worked and recrystallized condition? hall petch equation is 160 = 95 + k/sqrt(600x10-6) This gives k as 1.592 Now proof stress = 95 + 1.592/sqrt(80x10-6) = 273 MPa The final answer is 273 MPa Proposal: Hello – I am Rajesh having a PhD in engineering from a top university and successfully completed many mechanical engineering projects in freelancer. I am highly qualified for this project and would like to speak with you further about taking this project on. If you'd like to view my previous work along with excellent feedback from my employers, take a look at my Freelancer Portfolio. Thanks.
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I am a mechanical engineering graduate and currently a teaching assistant at the British University in Egypt. I assist in teaching many mechanical engineering courses including fluid mechanics, advanced materials and stress analysis.
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I have mechanical engineering problem solving skills
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Flag of UNITED STATES
New York, United States
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Member since Aug 12, 2013

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