Ke. Perry et al., PHASE-SHIFT MOIRE STUDIES OF PROCESSING-INDUCED RESIDUAL STRAINS IN NICKEL-200 SPOT WELDS, Optics and lasers in engineering, 27(1), 1997, pp. 101-109
Processing-induced residual strains in solid cylinders of Nickel 200 w
ere investigated using phase shifting moire interferometry. Two differ
ent experimental approaches were used to study the strains produced du
ring Tungsten-inert gas spot welding. A comparison of results for a 'h
ot/fast' and a 'cool/slow' weld demonstrate the capabilities of the ge
neral approach. Both experimental methods revealed distinct difference
s in the residual displacement and strain fields between the two types
of welds. Copyright (C) 1996 Elsevier Science Limited.