MECHENG 3A03 Midterm: Term Test Formula Sheet

Which of the following may occur during annealing?

A. Stresses may be relieved

B. Toughness may increase

C. Ductility may increase

D. All of the above

Which of the following may occur during an annealing heat treatment?

A. Stresses may be relieved.

B. Ductility may increase.

C. Toughness may increase.

D. A specific microstructure may be produced

E. All of the above.

A wood beam 1.8 m long is simply supported at its ends, has a cross-section 15cm wide by 60cm
deep and carries a uniformly distributed load of intensity w = 8000 kg/m over the full span.
Calculate the bending stress at a point 20cm above the bottom of the beam and 60cm from the
left support & also find out the maximum bending stress for this beam.