Bauschinger effect on the spiral pipe

[dreamschool]

Usualy the mecahnical prpert. decrease after forming the spiral pipes

this is because of Bauschinger effect

I am looking for an article describing this phonomena?

 

[metman]

metengr answered this question for you on thread330-88514. Perhaps a diagram of this phenomenon would help.

If you go to a lilbrary at a college that offers engineering you might find the book he refers to by Dieter or another mechanical metallurgy book. Or you could do a search on the

http://www using

bauschinger and maybe find a discussion and hysterisis diagram there.

Jesus is THE life,
Leonard