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10 Mechanical Properties of Biological Materials
b
c
(
x
B
Fig. 10.3: Elastic beam: a force loading a beam, b sign convention for loading
moment M and shear force F, c distribution of stresses a in a beam: at denotes
tension, a c denotes compression
For some specific symmetric cross-sections, Cl = C2 = c, expressions for I,
section moduli S, awl. maximum stress (Jmax (see Eq. 10.15) can be simplified
as follows:
• rectangular cross-section beam (Fig. 10.4):
(10.17)
where band h are the width and height of the beam, respectively;