@article{oai:nagoya.repo.nii.ac.jp:00027268,
 author = {Goto, Keita and Imai, Kenta and Arai, Masahiro and Ishikawa, Takashi},
 journal = {Composites Part A: Applied Science and Manufacturing},
 month = {Jan},
 note = {The shear and tensile strengths of carbon fiber-reinforced thermoplastic (CFRTP) laminate joints by ultrasonic welding were investigated by lap shear tests (LSTs) and cross tensile tests (CTTs). The adherends were the cross-ply and the twill woven CFRTP laminates, and the flat energy director (FED) was used to clarify its effectiveness. A modified jig and testing method for CTTs were newly proposed. In each test, the strengths were calculated in two ways: by indicators of “welding efficiency” and “welding quality.” From the experimental results, the strengths of the cross-ply laminate joints were saturated at high welding energy, and the “welding quality” was improved by FED. On the other hand, higher strengths of the twill woven laminate joints were obtained as the welding energy increased, and the effectiveness of FED was confirmed mainly for the “welding efficiency.” The fracture surfaces were then observed to clarify the fracture mechanisms of the joints., ファイル公開：2021-01-01},
 pages = {126--137},
 title = {Shear and tensile joint strengths of carbon fiber-reinforced thermoplastics using ultrasonic welding},
 volume = {116},
 year = {2019}
}