15 What is Roughness? Answer the question relating it to the Quantification of Roughness: ABNT NBR ISO 4287(2002)
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15 What is Roughness?
Answer the question relating it to the Quantification of Roughness: ABNT NBR ISO 4287(2002)
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Solved in 2 steps
- True or False a) If an accurate value for the notch sensitivity is hard to find, I should consider the fatigue stress concentration factor higher than the stress concentration factor under static loading condition in design. b) It is easier to find the asymptotic value of fatigue strength as the endurance limit on the S-N curve for a brass alloy (Cu70Zn30) than that of endurance limit on the S-N curve for an AISI 1045 steel. a good fatigue design should keep the fatigue design factor of safety at a minimum value of______________How would you solve thisTrue or False a) “If the most conservative fatigue criterion were used for infinite life design, the first cycle yield check is not needed.” b) If an accurate value for the notch sensitivity is hard to find, I should consider the fatigue stress concentration factor higher than the stress concentration factor under static loading condition in design. c) It is easier to find the asymptotic value of fatigue strength as the endurance limit on the S-N curve for a brass alloy (Cu70Zn30) than that of endurance limit on the S-N curve for an AISI 1045 steel.
- SOLVE CAREFULLY!! Please Write Clearly and Box the final AnswerHow do i find the tolerances from standard tables for H7 and s6? The answer should be: For H7 (hole) at diameter 50 mm: Upper deviation (ES): +25 µm Lower deviation (EI): 0 µm For s6 (shaft) with diameter 50 mm: Upper deviation (es): +59 µm Lower deviation (ei): +43 µmTooling Design ☐ Device need to be placed by Pick and place with accuracy of +/- 50um into nest. • Device size = 1.0 xo.8xo.6mm (Tolerance = +/-0.05mm all sides) 0.8 mm Y mm Z mm Y= Z= _mm, Explain mm, Explain
- Which of these statements are correct?mechanical design and drawingFor my assigment, I was asked to design a electric motorbike that has a peformance equal to Honda CBR1000 Fireblade which has a petrol engine. A part of the the assignment is to calculate " An estimate of maximum Power your new motor will need to generate to match the Honda’s performance." I can make the assumption, apart from changing the motor, everything else is going to stay the same so the fairing,the rider and etc they're gonna be the same for the two bikes. So can you please tell me how I can calculate that which information would I need ?
- Using slip gauge set (BM1- 447 -11) shown in the tabular column(below) select suitable slip gauges of the 44.73 mm work piece sizeThe shear modulus. G. of a material can be determined by applying a torque. T, on a cylindrical material specimen and measuring the angular twist, 0. The modulus can then be calculated from: G each measured variable (L. T.t. 0, R) is 3.4%. 3LT 2 Ree where R and Lare the specimen radius and length, respectively. The relative uncertainty in What is the total relative uncertainty in G? (Provide your amwer as a percentage using two decimal places. Do not include the % symbol.) 1226Select All the correct statements from below. a. If the averaged distance between partial dislocations for material A observed under TEM is smaller than material B, the estimated stacking fault energy of material A is lower than material B. b. K_IC is a material property that doesn't change with testing conditions c. The main difference between high cycle fatigue and low cycle fatigue is the difference in the number of cycles to failure d. A negative R value in fatigue test indicate the minimum stress is compressive in nature