Mechanics of Materials	Exam 1
Student Name:	St. No.

1- Define the following:

A- Stress (s):

B- Moment (M):

C- Centroid of a shape:

D- Polar moment of area (J):

2- Find the value of the following:

	H = 12 mm B = 10 mm D = 24 mm	d = 20 cm D = 22 cm
Area of the shape (A)	Second moment of area (I)	Polar moment of area (J)

3- Find the second moment of area (I)

No	A	y	A y
	Σ		Σ

No	I	A	y	Ay^2	I + Ay^2
I					Σ

4 a) Find the Stresses equations at point A due to a force F₁. The pin diameter is d.

4 b) Find the Stresses equations at point A due to a force F₂.