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Reliable Structural Weldments for Critical Service

by Thomas J. Dawson, Metallurgical Engineer Consultant; Naval Facilities Engrg. Command, Alexandria, Va.,
Michael Yachnis, (F.ASCE), Chf. Engr.; Naval Facilities Engrg. Command, Alexandria, Va.,


Serial Information: Civil Engineering—ASCE, 1978, Vol. 48, Issue 10, Pg. 82-86


Document Type: Feature article

Abstract:

Fracture control plans are considered in light of weldment rather than base material alone. Data are presented on the probability of base materials (i.e., plate) having adequate toughness in the presence of fabrication discontinuities or service-induced cracks. Economical procedures are presented for the control of problem areas which in the past have contributed to catastrophic failure of monolithic welded structures or components of non-redundant structures. The source of cold or delayed cracking is shown. Simple preventative measures are also described. The availability of base material, filler materials for welding and procedures for their application to produce a reasonably crack-free structure are presented.

Subject Headings: Base course | Welding | Cracking | Construction materials | Structural reliability | Structural control | Toughness

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