Engineering | Finite Element Analysis | Stress
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Analysis Types
ELECTROSTATIC analyses involve the computation of electric potential and fields without
current. It can also involve the calculation of capacitance between conductors, and
dielectric strength of insulators.
VOLUMIC CONDUCTION type simulations involve the
determination of current distribution and electric potential in complex-shaped conductors.
Calculation of electric resistance and distribution of Ohmic losses can also be carried
out.
LINEAR MAGNETOSTATICS analyses attempt to evaluate magnetic fields in linear
materials due to DC currents. Applications include electromagnets, contactors, motors,
electron guns.
AC MAGNETICS invloves the calculation of magnetic fields in solid
conducting materials due to high-frequency AC currents. Typical applications are
non destructive testing, surface hardening, and superconductivity.
PIEZOELECTRIC
analyses study crystals that develop an electrical charge when exposed to mechanical
stress. Conversely, the application of an electric field to a piezoelectric crystal
leads to a physical deformation of the crystal, and so may be of interest to the
designer.
SHAPE MEMORY analyses study the phenomenon where material deformed in the
room temperature can be returned to its original shape by heating. The shape memory
affect results from the fact that a Shape Memory Alloy has two states, austenitic
and martensitic, between which its metallurgical structure can be transformed.
MAGNETORESISTIVE analyses study the resistance of a semiconductor as it changes in
the presence of magnetic field. The magnitude of the resistance change depends on
the shape of the sample and is best seen in samples being short & wide. Usually in
the design of magnetic sensors.
ELECTROSTRICTIVE analyses examine the deformation
of material in an electric field. Similar to the piezoelectric effect, electrostriction
occurs in ferroelectric materials but in contrast to the piezoelectric effect, it
does not require asymmetric crystal structure. Electrostriction applications are
usually in the area of actuation.
Electromagnetics - analysis types
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