[TheForge] work hardening question

Mon Jan 28 20:32:00 2002

Work hardening occurs when the material is stressed beyond it's elastic
limit. Do this repeatedly and fatigue failure occurs. I some situations
aluminum can fatigue without ever exceeding the elastic limit. Springs are
a good example of a material not work hardening with repeated flexing.

grant

[email protected] wrote:

> hello;
>
> this question occurred to me this past saturday and again yesterday
> while watching the antenna tower by the house sway back and forth in
> the wind.
>
> i may be overlooking something rather simple but here is the question.
>
> what keeps the metal in antenna towers, street light poles, even the
> sears building in chicago from work hardening after all the time of
> swaying from wind?
>
> it would appear that after swaying back and forth over the years
> that the metal would be work hardened and become brittle.
>
> --
> Terry L. Ridder
> Blue Danube Artistic Forge (Blaue Donau Kunstschmiede)
> "We do not bend metal, we sculpt it."
>
> digging deep, i feel my conscience burn
> i need to know who and what i am
> this hunger jolts me from complacency
> rocks me, makes me meet myself
> ----kendall payne---closer to myself---
>
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