Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) OKANO Shigetaka and MOCHIZUKI Masahito and TOYODA Masao and UEYAMA Tomoyuki,Effect of Weld Shrinkage on Root Gap Behavior during Butt Welding with Additional Cooling behind Weld Heat Source,QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY,0288-4771,JAPAN WELDING SOCIETY,2011,29,2,70-76,https://cir.nii.ac.jp/crid/1390282679703772032,https://doi.org/10.2207/qjjws.29.70