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Elastic Modulus of Full Penetration Welds

Elastic Modulus of Full Penetration Welds

Elastic Modulus of Full Penetration Welds

(OP)
Say you you're splicing two bars of Grade 36 steel end to end with a full pen butt weld.  Will the weld material have the same linear elastic response as the base material?  ~E=29,000ksi?  

Would it be close enough that a strain gage wouldn't notice the difference if it were on the weld versus if it were on the base material??

RE: Elastic Modulus of Full Penetration Welds

If you are using a similar steel composition, the elastic modulus should be within 10 % of the value of the bars.  Strain gages are more sensitive than 10 %, so there could be a noticeable difference.

RE: Elastic Modulus of Full Penetration Welds

I agree, as long as the chemical composition of the weld filler metal that was used is similar to the base material (ASTM A 36).

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