3 KiB
optimization method of composite laminates with a viscoelastic layer
This paper develops a method to transform a multi objective (damping and stiffness) into a single one, to facilitate optimization.
experimental investigation of the dissipation of a viscoelastic inserted layer
This paper try to assess the damping qualities of a visco elastic insert. It found that it is very efficient in medium and high frequency ranges.
model for impact on fiber metal laminate with a viscoelastic layer
can teach about impact on viscoelastic sandwich impact
Use a specific criterion to quantitatively estimate whether the composite structure is damaged subjected to impact excitation.
Reddy’s high-order shear deformation theory for the viscoelastic layer
Hard and Soft Collisions
A soft collision is an inelastic collision, which means that kinetic energy is not conserved (because internal friction). However, the momentum is still conserved.
A perfectly inelastic collision occurs when the two bodies stays together, and the energy is lost by bonding the two bodies.
inelastic collison for composite materials
Use the finite element model to get the dynamic response.
The structure is considered elastic but the loading is considered inelastic.
The isoparametric linear shell element is modified to take into account the shear deformation and rotatory inertia.
inelastic collision : masses added together and momentum conserved, used for slamming or other wave-like loading
This model is reasonable when the impactor is relatively soft and the mass of impactor is larger than the mass of the node being impacted.
finite element modeling of low-velocity impact on laminated composite plates and cylindrical shells
use of abaqus
examination of the validity of different models
propose a benchmark method in low-velocity impact modeling of composite structures
Analysis of Laminated Composites Subjected to Impact (p 243)
very recent paper, propose both theoretical and experimental approaches to the analysis of laminated composite response to impact loading