Nonlinear transient response of viscoelastic sandwich panels

Bachelor capstone project in a team of two at Vellore Institute of Technology (2022), on passive constrained-layer damping of laminated composite panels.

At a glance

Report title: Nonlinear Transient Response of Viscoelastic Sandwich Panels with Composite Laminate Face Sheets
Context: B.Tech. Mechanical Engineering, Vellore Institute of Technology, April 2022
Team: Two students
My role: Contributed to model formulation, debugged the MATLAB code, evaluated and interpreted results
Tools: MATLAB

The topic

Passive constrained-layer damping uses a viscoelastic layer between stiff face sheets to dissipate vibration energy. The project studied the nonlinear transient response of such panels with composite laminate face sheets.

The numerical model is a geometrically nonlinear finite-element formulation (first-order shear deformation theory, Green–Lagrange strains, Hamilton's principle), implemented in MATLAB. The study analysed load–displacement paths and displacement fields of simply supported and clamped panels.

Scope

What I did

Reviewed the literature
Contributed to formulating the model together with my teammate
Corrected and debugged the MATLAB code
Evaluated and interpreted the results
Proof-read the report

What I did not do

My teammate developed the finite-element model and wrote and ran the MATLAB program
This is an academic numerical study, not professional composite design work

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