Dynamic analysis of thick plates including deep beams on elastic foundations using modified Vlasov model

Creative Commons License

Ozgan K.

SHOCK AND VIBRATION, cilt.20, sa.1, ss.29-41, 2013 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 20 Sayı: 1
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1155/2013/856101
  • Dergi Adı: SHOCK AND VIBRATION
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.29-41
  • Anahtar Kelimeler: Finite element method, thick plate, deep beam, elastic foundation, Vlasov model, shear locking problem, dynamic analysis, REISSNER-MINDLIN PLATES, FREE-VIBRATION ANALYSIS
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

Dynamic analysis of foundation plate-beam systems with transverse shear deformation is presented using modified Vlasov foundation model. Finite element formulation of the problem is derived by using an 8-node (PBQ8) finite element based on Mindlin plate theory for the plate and a 2-node Hughes element based on Timoshenko beam theory for the beam. Selective reduced integration technique is used to avoid shear locking problem for the evaluation of the stiffness matrices for both the elements. The effect of beam thickness, the aspect ratio of the plate and subsoil depth on the response of plate-beam-soil system is analyzed. Numerical examples show that the displacement, bending moments and shear forces are changed significantly by adding the beams.