|
|
| Composite Springs |
| GMI Composites specializes
in the manufacturing of Composite Springs. We accomplish this through
several methods of manufacturing. These include, compression molding,
pultrusion, and filament winding. There are several different resin
systems that we use as well. These include polyesters, urethanes,
and epoxies. We have all of the resources to customize any spring
to meet all of your engineering requirements. |
| Here are some of the advantages of composite
springs. |
- Greater flexibility and
Four Times the Strength of Steel. This
allows you to broaden your design parameters.
- Achieve your desired flexibility at stress
levels far below those of steel.
|
- Light Weight –
A fiberglass reinforced composite spring has a specific
gravity of only 2.1.
- The result is 50-60% less weight than
a conventional steel spring.
|
- Corrosion resistance
- Fiberglass reinforced composite springs do not rust, an
element which shortens the life of steel springs.
- Composite springs have a high resistance
to corrosion and may be used in environments which contain
aggressive liquids and vapors.
|
- Excellent Dielectric
properties – Composite springs will work as an insulator
to all electrical environments. (Exception: Carbon fiber
springs will conduct electricity).
- Springs can be used in any electrical
application without fear of conducting electricity.
|
- Repeatability of Spring Rate-
Our knowledge of fiberglass reinforced composite springs
allows us to control resin process, resin system, glass
content, and thickness.
- The result is springs that are built
to your specifications with uniformity of spring rate
from batch to batch.
|
|
|
Glass Content
by Weight
50-70 Percent by weight
|
Flexural
in Direction of Fibers
Strength 180-200 KSI
Strain 3.69 Percent
Modulus 5.6-6 X 10(To the sixth) PSI
|
Transverse
Flexural
Strength 14,000 PSI
Strain 2.44 Percent
Modulus 5.8 X 10 (to the sixth) PSI
|
Short Beam
Shear
12,000 PSI
|
Longitudinal
Compressive
Strength 85,000 PSI |
|
