Example applications

A target strain gauge (with reduced backing foil area) mounted in the fillet of a crankshaft main bearing journal.  Used to determine the state of residual stress at the edge of an induction hardened zone.
A target strain gauge (after drilling) mounted close to a rib blend fillet on an  aluminium casting. 
Target strain gauge mounted in a shallow hole machined by EDM (at Stresscraft) to provide access to sub-surface material.
Target gauge mounted at the edge of the heat-affected zone close to a weld.  Part of a study to determine the distribution of residual stresses throughout a welded joint.

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