Fastening solutions on composite structures: Progressive damage analysis of a unique bolted joint design for single-lap CFRP laminate

Erbil E., Karakuzu R.

Mechanics of Advanced Materials and Structures, cilt.31, sa.30, ss.13373-13389, 2024 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 31 Sayı: 30
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1080/15376494.2023.2272240
  • Dergi Adı: Mechanics of Advanced Materials and Structures
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, DIALNET, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.13373-13389
  • Anahtar Kelimeler: Carbon laminate, finite element analysis (FEA), plastic deformation, progressive damage, single-lap bolted joint
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

This study tested a unique assembly method using single and multi-body sleeves with carbon fiber-reinforced plastic (CFRP) to improve load-carrying capacity in single-lap joints. Advanced techniques were implemented into FE code to simulate progressive material degradation behavior. Ti6-4 bolt, insert, and washers with AISI 304L sleeve joint were conceptually designed to keep bolt and nut together with less relative motion. Failure indices were reduced by 16–54%, damage initiation force was improved by 8–40%, and inter-plate clamp loss was reduced by 18% compared to the sleeveless design. Lateral load-carrying capability of joint and inter-plate clamp load significantly improved.