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## Homework Statement

The component shown in Fig 1 is made from a material with the following properties and is subjected to a compressive force of 5kN.

Material Properties :

Young’s Modulus of Elasticity – 200 GNm-2

Modulus of Rigidity – 90 GNm-2

Poisons ratio – 0.32

Calculate :

(a) The stress in :

(i) the circular section

(ii) the square section

(b) The strain in :

(i) The circular section

(ii) The square section

(c) The change in length of the component

(d) The change in diameter of the circular section

(e) The change in the 40mm dimension on the square section

(f) If the same component were subjected to a shear force of 7 kN as shown in FIG 2, calculate the shear strain in :

(i) The circular section

(ii) The square section

## Homework Equations

unsure

## The Attempt at a Solution

I have not made any attempt as of yet as I have not done this in a long time and need to be pointed in the right direction. I nwould greatly appreciate anyone who has the time, to take me through each question and guide me in the right direction. I am not asking for answers but for guidance on formulas to use and a bit of an explanation why each formula needs to be used. Thanks in advance.