The following data were collected from a 0.4-in.-diameter test specimen of polyvinyl chloride (l0 = 2.0 in.):

Question:

The following data were collected from a 0.4-in.-diameter test specimen of polyvinyl chloride (l0 = 2.0 in.):

Load (lb)Δl (in.)
00.00000
3000.00746
6000.01496
9000.02374
12000.032
15000.046
16600.070 (maximum load)
16000.094
14200.12 (fracture)

After fracture, the total length was 2.09 in. and the diameter was 0.393 in. Plot the engineering stress strain curve and calculate

(a) the 0.2% offset yield strength;
(b) the tensile strength;
(c) the modulus of elasticity;
(d) the % elongation;
(e) the % reduction in area;
(f) the engineering stress at fracture; and
(g) the modulus of resilience.

Answer:

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