Tag Archives: residual stress

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Estimating the Fatigue Life of Steel Welded Structures and Components

Using S-N curves and formulas from Clause 2 of AWS D1.1

Heat affected zone crack induced by hydrogen. The crack originates at point of high stress as hydrogen diffuses out of the weld and heat affected zone.

The majority of industrial equipment and welded structural components are subjected to repeated fluctuating loads. These loads are typically of magnitudes that are within the elastic region of the material and well below its yield strength. This means that any deformation of the structure caused by the applied stress will then return to its normal […]

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The Advantage of Using Undermatching Filler Metals on High Strength Steels

High strength steels are becoming more and more popular in steel construction.  Higher strength means we can reduce the thickness of the base material and thus reduce weight.  This is very important not just in vehicles but in static structures as well.   However, higher strength steels usually bring about a few issues that if not […]