00:01
Let's discuss this question.
00:02
So a composite rod is made by attaching a glass reinforced plastic rod and the nylon rod end to end as shown in this figure.
00:10
So here we need to find what will be the greater tensile stress that can be applied to the composite rod before it breaks.
00:18
So we all know the stress is equal to f divided by a and the strain is strain is strain.
00:39
That is equal to e divided by l.
00:43
So here we got the formula for strain and also the formula for stress.
00:53
So further, here we can say using young's modulus, e is equal to stress divided by strain.
01:11
So further, here we can say this will be equal to stress divided by e divided by l.
01:21
So here we can say therefore that e is equal to stress multiplied by l divided by e.
01:33
So here we can say the plastic rod extension that is denoted by ep will be equal to stress multiplied by 1 divided by 4 multiplied by 10 rise to 9...