1.1. Introduction to Deformation and Load Response

Try these first

1. 1.

   Define stress and strain.

   Hint

   Think about how forces change the shape of an object.

2. 2.

   What is Hooke's Law?

   Hint

   Recall the formula C3 = E B7 B5.

3. 3.

   What is stress defined as?

   • A measure of length change
   • Force per unit area
   • Weight of the material

   Hint

   It is related to the external force acting over a specific area.

4. 4.

   True or False: Strain is a dimensionless quantity.

   • True
   • False

   Hint

   Consider how strain is expressed as a ratio.

5. 5.

   Consider a steel beam subjected to both tensile and compressive forces. Calculate the resultant stress if the tensile force is 2000 N and the area is 0.05 m².

   Hint

   Remember to apply the stress formulas for both tensile and compressive forces.

6. 6.

   A rod experiences a tensile strain of 0.005 when a load is applied. If its original length was 2 m, how much has it elongated?

   Hint

   Remember the relationship between strain and change in length.