## Explain why of length-of-bend to sheet thickness increases.

As noted in Fig. 7.16, the state of stress shifts from plane stress to plane strain as the ratio

of length-of-bend to sheet thickness increases.

Explain why. This situation is somewhat similar to rolling

of sheet metal where the wider the sheet, the

closer it becomes to the plane-strain condition.

In bending, a short length in the bend area

has very little constraint from the unbent regions,

hence the situation is one of basically

plane stress. On the other hand, the greater

the length, the more the constraint, thus event

### Calculate the maximum achievable bridge out-of-balance voltage for an applied torque T of 103 N m given the following

Four strain gauges, with specification given below, are available to measure the torque on a cylindrical shaft 4 cm in diameter connecting a motor and load. (a) Draw clearly labelled….

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A solid-state capacitive humidity sensor has a capacitance given by: C = 1.7 RH + 365pF where RH is the percentage relative humidity. The sensor has an associated parallel resistance….

### calculate the mean velocity of the gas at maximum flow rate

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