Geometrically nonlinear transient vibrations of actively damped anti-symmetric angle ply laminated composite shallow shell using active fibre composite (AFC) actuators

International Conference on Advances in Materials and Manufacturing Applications 2017

Ashok, M.H.^1 ; Shivakumar, J.^2 ; Nandurkar, Santosh^3 ; Khadakbhavi, Vishwanath^1 ; Pujari, Sanjay^1

Mech Engg. Dept., AITM, Belagavi, Karnataka

591108, India^1

Chhatttisgarh Engineering College, Durg, Chhattisgarh

491001, India^2

Mech Engg Dept., KLE Dr MSSCET, Belagavi, Karnataka

590008, India^3

关键词: Anti-symmetric angle ply;    Electromechanical coupled;    First-order shear deformation theory;    Geometrically nonlinear;    Golla-hughes-mctavish;    Smart composite panel;    Transient vibrations;    Viscoelastic layers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/310/1/012101/pdf
DOI  :  10.1088/1757-899X/310/1/012101

来源: IOP

【 摘 要 】

In present work, the thin laminated composite shallow shell as smart structure with AFC material's ACLD treatment is analyzed for geometrically nonlinear transient vibrations. The AFC material is used to make the constraining layer of the ACLD treatment. Golla-Hughes-McTavish (GHM) is used to model the constrained viscoelastic layer of the ACLD treatment in time domain. Along with a simple first-order shear deformation theory the Von Kármán type non-linear strain displacement relations are used for deriving this electromechanical coupled problem. A 3-dimensional finite element model of smart composite panels integrated with the ACLD treated patches has been modelled to reveal the performance of ACLD treated patches on improving the damping properties of slender anti-symmetric angle-ply laminated shallow shell, in controlling the transient vibrations which are geometrically nonlinear. The mathematical results explain that the ACLD treated patches considerably enhance the damping properties of anti-symmetric angle-ply panels undergoing geometrically nonlinear transient vibrations.