Question

In regions of the cardiovascular system where there is steady laminar blood flow, the shear stress on cells lining the walls of the blood vessels is about 20 dyne/cm2. If the shear strain is about 0.008, estimate the shear modulus for the affected cells. Note 1 dyne = 1 g ⋅ cm / s 2 and 1 N = 10 5 dyne

Answer 1

Answer:

$250$ N/m2

Explanation:

Shear stress on cells lining the walls of the blood vessels  is equal to $20$20 dyne/cm2

In terms of Newton/square meter, shear stress is equal to

$20*\frac{dyne}{cm^2} (\frac{10^{-5}N}{1 dyne} )*(\frac{1 cm^2}{10^{-4}*m^2} )\\= 2.0$ N/m2

Shear modulus is equal to shear stress divided by shear strain

Thus, shear modulus is equal to

$= \frac{2.0}{0.008} \\= 250$N/m2