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What is axis of pure rotation?

Submitted by sreenath on

   The concept of axis of of pure rotation  ( or instantatious center of rotation)  is a bit confusing. The text books in engineering mechanics( Irvin shames , Beer & Johnston etc) tells that the locus of points in a body, which is (are) having zero veloity.   This fits  well in case of a 2D motion. As a limiting case of this we are assuming the center of rotation is at inifinity for a rigid body moving in a straight line

The old rolling semi-wreck

Submitted by Anonymous (not verified) on

I have quite a task waiting for me with my Chrysler. I got it running a few monts ago and it started working nicely. Only small problem is the brakes never quite worked the way they should have.

Replaced a master cylinder and two breaklines, but kept getting leaks. Now I think it would be the best thing for me if I just went ahead and ripped out everything from the booster and master cylinder through to the discs and brake pads and replace everything. 

Now the cash for something like that is the very small little problem I am sitting with... 

Books

Submitted by Bafty on

Hi,

 can you pleas somebody recommend me some good books on continuum thermodynamics and plasticity(from physical point of view).

Thank you,

Bafty