What shape does the following load give to a bending moment diagram - assuming there is load on other parts of the beam?

Based on the known relationship between load and shear, use the SFD diagram below to calculate the actual value of the load P2 (kN) on the beam.  

Provide your answer to the nearest integer without units. 

Which of the following shows the positive sign convention for the internal actions when we we cut the beam at A?

What was the difference between 

• the length of the Al 6063 sample while the force in question 2(c) is being applied, and
• the length of the Al 6063 sample after the force in question 2(c) has been released?

In other words, how much did the specimen retract (elastic recovery) once the force was removed?

Give your answer in mm, to at least 2 significant figures

What are the effective length factors of the following support systems, that would be used to calculate the buckling capacity of the columns shown?

What failure modes must be analysed for members experiencing... 

What was the 0.2% proof stress for the Al 6063 sample that you determined in question 2(d)?

Give your answer in MPa, to at least 2 significant figures