Module 3: Dynamic Properties and Selection of Materials
Lecture 11: Design for Enhanced Material Damping
Cross Section
βc for n=2
βc for n=3
Rectangular
1
3/4
Circular
1
Diamond
1
3/5
It should be noted that,
for , for all the cross-sections since, for uniaxial loading of a
hysteretic material. . Any section having more material away
from the neutral axis has a better damping capacity than a section in
which most of the material is near the neutral axis.
, 
for all the cross-sections since, for uniaxial loading of a
hysteretic material. 
. Any section having more material away
from the neutral axis has a better damping capacity than a section in
which most of the material is near the neutral axis.
