15-07-2014, 03:34 PM
NONLINEAR STATIC ANALYSIS OFSMART MAGNETOSTRICTIVE LAMINATED COMPOSITE PLATE
NONLINEAR STATIC.pptx (Size: 472.3 KB / Downloads: 9)
Composite
A composite material is defined as a mixture or a combination of two or more distinctly differing materials which are insoluble in each other and differ in form or chemical composition.
Typically composites is made of a matrix and 1 or more reinforcements .They have different compositions, shapes and physical/chemical properties.
Smart Materials
Smart materials have the ability to respond to changes in stress, strain, displacement, velocity, acceleration, electrical, thermal or other mechanical change of a structure through changes in their properties in a controlled manner to maintain a desirable and satisfactory performance.
So, smart materials are quite popular materials to be used as both sensors and actuators in biomedical, aerospace structures, automotive and machine tool industries, flight control, etc.
The most common smart materials are
magnetostrictive materials
piezoelectric and electrostrictive materials
shape memory alloys
electro and magneto rheological fluids, etc.
Geometric nonlinearities
Geometric nonlinearities involve nonlinearities in kinematic quantities such as the strain-displacement relations in solids.
Total deformation of composite constitutes
Displacements
Rotations
Strains
Conclusion
A third order shear deformation theory is used to study the behavior of laminated smart composite plate with magnetostrictive layers while accounting for geometry nonlinearity in the Green-Lagrange sense.
A coupled analysis of magnetostrictive material is presented here Terfenol-D is used as a magnetostrictive material to control the responses of the laminated smart composite plate.
A c0 isoparametric finite element is proposed for present nonlinear model.
Some new results are expected to find which were not presented in previous papers for future research in this field of study.