A solid titanium alloy [G=114⁢ GPa] shaft that is 730 mm long will be subjected to a pure torque of T=150 N⋅m. Determine the minimum diameter required if the shear stress must not exceed 135 MPa and the angle of twist must not exceed 3°. Report both the maximum shear stress τ and the angle of twist φ at this minimum diameter.

Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way

Describe one experiment in which the glass transition temperature and melting temperature of a totally amorphous thermoplastic material can be determined. show the relevant experimental results in a diagram which should be properly annotated with the two temperatures clearly marked. what is likely to happen to the curve in the diagram if the amorphous polymer is replaced by a thermosetting type?

A21-tooth spur pinion mates with a 28-tooth gear. the diametral pitch is 3 teeth/in and the pressure angle is 20°, find the following values: the addendum, dedendum, circular pitch, tooth thickness, and base circle diameters.