Helio C Bortolon
Mechanical
- Sep 1, 2016
- 4
Dear colleagues,
I am searching for data to make a Ramberg-Osgood true stress x true strain curve and I am stuck in a point: most of the vendors provide ultimate stress (no elongation) and elongation at break (no stress), but I would need the /uniform elongation/, the elongation at ultimate stress according to ASTM's definition, to completely define the pair of points.
Have anyone found the value of this uniform elongation in some source, or how have you managed to circumvent this absence?
My aim is to use the elastic-plastic criteria of ISO 13628-7/API RP 2A in the analysis of a equipment.
I thank you all in advance for any help.
Helio
Subsea Engineer
I am searching for data to make a Ramberg-Osgood true stress x true strain curve and I am stuck in a point: most of the vendors provide ultimate stress (no elongation) and elongation at break (no stress), but I would need the /uniform elongation/, the elongation at ultimate stress according to ASTM's definition, to completely define the pair of points.
Have anyone found the value of this uniform elongation in some source, or how have you managed to circumvent this absence?
My aim is to use the elastic-plastic criteria of ISO 13628-7/API RP 2A in the analysis of a equipment.
I thank you all in advance for any help.
Helio
Subsea Engineer
