just curious

G

grimey1

New Member
Hello
just looking at a piece of bent plate at right angles
you know L shaped
does it matter which way I mount it (ooer)to have the most strength
ie load pressing down to close the angle
or load pressing down to open the angle
or doesn't it matter just curious

Grimey
 
I would say it's harder to close the angle as it can only go so far till it binds against itself & stops. (If that makes sense.)
 
Now see what you've started Grimey....:^O

I disagree with Wise Uncle, as I've always found it more difficult to remove a bend from metal than to increase it. I really don't know, but I suspect there is no difference
 
Tis easier to remove a bend form something once its past 90degs than it is to increase the angle to get it to 90degs.
 
I think that we are all just guessing. To me, it appears the same either way. If you treat the bend as a pivot point, then you take moments about it, It's Force X Distance which ever way that you apply it.
 
i dont think it matters. the weak link may indeed not actually be the metal itself, but the method of fixing it.

in terms of bending and rebending metal, it is all down to the malleability of the material. some alluminiums, for example, have a low property of malleabity and will crack quite easily if you try to bend it, other forms of alluminium are designed to bend and will fold back on themselves quite easily. however even with the latter, they will 'work harden' and if excessively bent, rebent etc they will crack, unless heat treated with a blow lamp at stages throughout the process.

KNOBS: Knowledgeable, Number 1 On Ball Sports
 
Ponty,(which ever one!}. Don't go there!.. " If you think you're 'ard enough" , about the properties of metals....Then..Come on my son! ;)
 
KNOBS: Knowledgeable, Number 1 On Ball Sports

What a load of utter *.

[Edited by: admin]
 
if the leg length is equal the it wont matter, but if they are unequal the "i" value will be different and it will.
each section of metal has its own i value and it is its ability to carry a load
 
the OP has not come back. how rude, all this advice and no thank you from him pffft

i brought my little ones up to say please and thank you.

MOAP: Most Original Author Posting
 
My Mother would put me over her knee
I'm very SORRY :(
Thank you all for taking the time to reply
Please forgive my tardiness

Grimey
 
grimey your mother bought you up well.

theres no need to say thank you, it was a pleasure to be of assistance :)

MOAP: Most Original Author Posting
 
IWS as your post was almost entirely incorrect I don't think you provided much assistance.
Aluminium is an element, atomic no 13, so there aren't different types of it.
Virtually all metals work harden.
Please tell me how you aneal Aluminium.
It certainly was original though. ;)
 
I think that everyone is drifting away from the OP's original question. He didn't specify any particular metal, so most people assumed steel. Some people went on to define the properties of aluminum.....Why ?...Ive no idea !! Chippie, I'll tell you how to aneal aluminum. Dead easy ! Without going into technicalities about temperatures,you heat it until a wooden matchstick will make a black scorch mark on it. Let it cool...Job done !! HTH, malkie
 
Cheers Malkie, I thought you would know but I bet the master of obtuse postings didn't!
 
you see chip on the shoulder 24/7, anybody with just an ounce of engineering knowledge knows how to anneal a metal. you did not even realise the process that i described. thick thwat.

and before you ask: a matchstick is a piece of wood :^O

MOAP: Most Original Author Posting
 
Possibly paper!

(and that's not annealed wood)

Mr. HandyAndy - Really
 
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