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Agarwal, G. (author), Gao, H. (author), Amirthalingam, M. (author), Hermans, M.J.M. (author)In situ strain evolution during laser welding has been measured by means of digital image correlation to assess the susceptibility of an advanced high strength automotive steel to solidification cracking. A novel method realised using auxiliary illumination and optical narrow bandpass filter allowed strain measurements as close as 1.5 mm from...journal article 2018