Thermo-mechanical stress analysis of rotating fiber reinforced variable thickness disk

Can Farukoglu Ö. C., KORKUT İ.

JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN, cilt.57, sa.8, ss.664-676, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 57 Sayı: 8
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1177/03093247211060996
  • Dergi Adı: JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.664-676
  • Anahtar Kelimeler: Fiber reinforced disk, composite disk, stress analysis, rotating disk, thermoelasticity, ANNULAR DISKS, THERMOELASTIC ANALYSIS, NONUNIFORM THICKNESS, MECHANICAL STRESSES, THERMAL-STRESSES, CIRCULAR DISK, TEMPERATURE
  • Gazi Üniversitesi Adresli: Evet

Özet

Circumferentially fiber reinforced composite disk, which has a variable thickness, is modeled via analytical approaches. The disk is subjected to rotation in traction free conditions and decreasing, constant, and increasing steady state radial temperature gradients along the disk radius. Limit angular velocities are calculated by operating Tsai-Wu and Norris failure indexes to the problem. Subsequently, these limit velocities are gradually decreased to examine the stress and displacement fields. Acquired results show that as the angular velocity drops, the effects of temperature gradients become more visible. At lower angular velocities, these gradients may even alter the stress field directions. Also, different failure criteria implementation may change the calculated limit velocities to a considerable degree. Therefore, the failure index should be chosen attentively to procure conservative results. In the investigation, the influence of disk geometry on the directional stresses is studied as well. Without further ado, it can be expressed that the geometry causes slight alterations in stresses and displacements.