Question

Laboratory tests on human teeth indicate that the area effective during chewing is approximately o.25cm² and that the tooth length is about 1.1cm. if the applied load in the vertical direction is 880N and the measured shortening is 0.04 cm, determine Young's modulus

Answer 1

Calculate the young’s modulus by the relation as follows:

E=PL/(A(dL))

Here force applied is P , area is A, length of teeth is L and change in length is dL.

E=((880 N)(1.1 cm))/((0.25 〖cm〗^2)(0.04 cm))

E=96800 N/〖cm〗^2