•The following will be covered in this
Chapter:
–Background on
Elastomers
–Theory of hyperelasticity
–Curve fitting
procedure
–Reviewing
Results
•
•The capabilities described in this section
are generally applicable to ANSYS Structural licenses and above.
–Exceptions
will be noted accordingly
•Elastomers are a class of polymers with the following properties
–Elastomers involve natural and
synthetic rubbers, which are often amorphous and are comprised of long
molecular chains
•The molecular chains are highly twisted,
coiled, and randomly oriented in an undeformed state
•These chains become partially straightened
and untwisted under a tensile load
•Upon removal of the load, the chains revert
back to their original configuration
–Rubber elasticity is due mainly to reduction in entropy
(i.e., reduction in the number of possible configuration of chains).
•This is unlike metals, for example, where
elastic behavior is due to stretching of molecular bonds (see Chapter 5).
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