Arectangular block having dimensions 20 cm x 30 cm x 40 cm is subjected to a hydrostatic stress of -50 kpa (i. e. under compression). calculate the change in length of each side. data: young's modulus of the block e = 600 kpa, poisson ratio v=0.45.

Explanation:

Given that E=600 KPa

Poisson ratio=0.45

We know that for hydroststic stress ,strain given as

Here given that

Now by putting the values

Negative sign indicates that dimensions will reduces due to compressive stress

We know that strain given as

Lets take a=20 cm,b=30 cm,c=40 cm.

So

answer:

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answer:

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explanation: