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Original Message
Only if you exceed the yield stress.
Posted by Mark Kelly on October 27, 2006 at 16:39:40:
Vinyl as used in records is used above its glass / rubber transition point so it acts as a rubber. It's very difficult to push a rubber beyond its compressive yield stress because it acts basically like a condensed fluid.
When I get time I will try to get together more information on elastic/plastic deformation and creep strain behaviour in vinyl.
Mark Kelly