A a bar abcd consists of three sections ab is 25 mm square...

A bar ABCD consists of three sections: AB is 25 mm square and 50 mm long, BC is of 20 mm diameter and 40 mm long, and CD is of 12 mm diameter and 50 mm long. Determine the stress set up in each section of the bar when it is subjected to an axial tensile load of 20 kN. What will be the total extension of the bar under this load? For [32.63, 7, 176.8 MN/m^2, 0.062 mm]

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Transcript

00:01 Hi everyone, so the question is saying that we have a power 80cg consists of three sections.

00:06 Okay and ab is equal to me.

00:09 Ab is equal to 25 mm square and and 50m long.

00:18 Okay and bc is equal to 20 mm of diameter okay and 40 mm long.

00:30 Long.

00:32 Okay.

00:33 And next is cd.

00:34 So cd is 12 mm diameter.

00:38 Okay, diameter is equal to 12 mm and length is equal to 60 mm load.

00:45 So the terminal stress is set up in each section of the ball with a tensile load.

00:51 And the tensile load that is given to the motion.

00:54 Tensile load is equal to 20k motor.

00:58 Okay.

00:59 So we have to find out.

01:00 First of all the value stress here so to point out the value stress in this three cases first of all we consider that the point we have three sections here so the first is this this is 8 okay the load will be applied same both direction a okay this is b second okay so in this load is we consider that is b and and then the section is ck c2.

01:35 Okay, in this load applied that is equal to c.

01:40 Okay, so c is equal to 1.

01:43 That means my first, that means total course, that is 10thal load at the c point which applies so this is equal to 20k newton.

01:52 Okay and we have given b minus c.

01:56 B minus c will be equal to zero.

01:58 Means b will be equal to c is equal to 30 k newton...