How can I know which enters yield bar first?

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Queren Suriano
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Homework Statement



upload_2015-4-19_17-30-22.png

Homework Equations



Area AD = Area BE

E(AD) =E (BE)

Yield stress = 250 MPa[/B]

The Attempt at a Solution



Delta= PL/(AE) if in both bars the A and E are the same, and from the equilibrium I get Q= 4.125 F(AD) + F(BE) , also from the compatibility I get delta AD = 4.125 delta BE[/B]
 
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How can I know which bar (AD or BE) reach the yield first??
SteamKing said:
Que?
 
Queren Suriano said:
How can I know which bar (AD or BE) reach the yield first??

Or how can I know which bar will reach a perfectly plastic behavior first?
 
Queren Suriano said:

Homework Statement



View attachment 82241

Homework Equations



Area AD = Area BE

E(AD) =E (BE)

Yield stress = 250 MPa[/B]

The Attempt at a Solution

Delta= PL/(AE) if in both bars the A and E are the same, and from the equilibrium I get Q= 4.125 F(AD) + F(BE) , also from the compatibility I get delta AD = 4.125 delta BE
 
@Queren Suriano, you didn't include a statement of the problem, so we have no idea what you're trying to do or what the symbols mean. AD looks like it would be a line segement, but what is Area AD? And what is E(AD)? What is a yield bar? You have not provided enough information for us to be able to help you.
 
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