BLOCK TO FOLLOW A SHAPE

[coffeejeanpaul]

Good day 

Is there a way to create a dynamic block to take a shape of say a pipe? say I have a rock mattress I need to partial wrap around a pipe. If I rotate a piece of the mattress the res should shorten as it would do in reality. 

See attached images and dwg what I am trying to achieve, I tried constrains but it brakes with rotation. 

 thank you in advance for any tips

[j.palmeL29YX]

In AutoCAD I don't see a solution.

I could imagine to achieve the desired behavior with a 3D model in a more suitable software (e.g. Inventor).