Fracture mechanics criterion of time-dependent crack initiation from interface free-edge in adhesively bonded butt joints

• Published in: Engineering fracture mechanics Vol. 186; pp. 368 - 377
• Main Authors: Takahashi, Yoshimasa, Inoue, Kosuke, Takuma, Masanori, Saitoh, Ken-ichi, Sato, Tomohiro
• Format: Journal Article
• Language: English
• Published: New York Elsevier Ltd 01.12.2017; Elsevier BV
• Subjects: Adhesive bonding; Adhesive joints; Bonded joints; Butt joints; Crack initiation; Cracks; Criteria; Edge stresses; Epoxy resins; Finite element method; Fracture criterion; Fracture mechanics; Fractures; Free-edge; Interface; Joining; Strain; Stress intensity factors; Time dependence; Time-dependent; Time-dependent; Free-edge; Fracture criterion; Interface; Crack initiation

•Time-dependent crack initiation from interface free-edge is experimentally evaluated.•Crack initiation life varied four orders of seconds with nominal stress change.•Fracture criterion successfully expressed by creep stress/strain singular parameters. The time-dependent crack initiation from the in...