Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) INOUE Takumi and KADOWAKI Ren and SOWA Nobuyuki,Modelling of bolt tightening by contact stiffness and its quantitative evaluation using transmitted ultrasonic pulse,Transactions of the JSME (in Japanese),2187-9761,The Japan Society of Mechanical Engineers,2023,89,924,22-00300,https://cir.nii.ac.jp/crid/1390015753041083264,https://doi.org/10.1299/transjsme.22-00300