Engineering, 20.04.2020 23:04 timttimtim
Problem #1Estimate the (1) endurance limit (Sn) and (2) 103fatigue strength (S103) for a steel bar (d < 10mm) with a Brinell hardness of 300 Bhn. Consider the case of fully reversed (a) rotating bending, (b) axial loading and (c) torsion, assuming laboratory polished specimens, room temperature, and 50% reliability. Problem #1Estimate the (1) endurance limit (Sn) and (2) 103fatigue strength (S103) for a steel bar (d < 10mm) with a Brinell hardness of 300 Bhn. Consider the case of fully reversed (a) rotating bending, (b) axial loading and (c) torsion, assuming laboratory polished specimens, room temperature, and 50% reliability.
Answers: 3
Engineering, 04.07.2019 18:10
Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10
Answers: 1
Engineering, 04.07.2019 18:10
Which one from below is not one of the reasons of planning failures? (clo3) a)-planner is careless. b-planner spend less time in the field but more time on the desk c)-planner is not qualified d)-planner does not have sufficient time to properly plan
Answers: 3
Engineering, 04.07.2019 18:10
Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.
Answers: 1
Engineering, 04.07.2019 18:20
Find the kinematic pressure of 160kpa. for air, r-287 j/ kg k. and hair al viscosity of air at a temperature of 50°c and an absolute (10 points) (b) find the dynamic viscosity of air at 110 °c. sutherland constant for air is 111k
Answers: 3
Problem #1Estimate the (1) endurance limit (Sn) and (2) 103fatigue strength (S103) for a steel bar (...
History, 24.10.2019 08:43
Business, 24.10.2019 08:43
Computers and Technology, 24.10.2019 08:43
Mathematics, 24.10.2019 08:43
Physics, 24.10.2019 08:43