Strain Hardening and Aging in Cold-Formed Steel

by Kenneth W. Karren, (M.ASCE), Prof.; Dept. of Civ. Engrg., Brigham Young Univ., Provo, Utah,
Mahendrasinhji M. Gohil, Formerly, Grad. Student, Dept. of Civ. Engrg., Brigham Young Univ., Provo, Utah,

Serial Information: Journal of the Structural Division, 1975, Vol. 101, Issue 1, Pg. 187-200

Document Type: Journal Paper


Previous investigations of the effects of cold-forming on light gage steel have dealt primarily with so-called corners, where the effect of plastic straining is large and that of strain aging negligible. However, in cases where cold work is less severe, e.g. in cold-formed electric-welded tubing, the influence of strain aging becomes significant. A method for predicting increases in yield strength in members formed with moderate amounts of plastic deformation is presented. The results of this method are compared with experimental results.

Subject Headings: Cold-formed steel | Strain | Plastics | Strain gages | Structural strength | Deformation (mechanics)

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