Key Points for Machining Polyurethane
When machining polyurethane, these are four key points to address: Thermal Conductivity, Elastic Recovery, Modulus of Elasticity and Softening Point.
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Gallagher White Papers
Gallagher is focused on providing useful information. Here is a list of the white papers we currently have available.
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Hysteresis in Urethane
Do you understand how hysteresis works? Let’s examine the compression-deflection curve for a given compound at a given shape factor and record the stress-strain relationship. As the piece is loaded, we arrive at one reproducible curve after three or four cycles. Now, if we record the curve generated during the unloading we see that not
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Polyurethane Shape Factor
Polyurethane Shape Factor Let’s look at the shape factor and how it applies to polyurethane. The compression-deflection relationship is modified by the shape of the part. The shape has only a minor effect in tension and shear. For example, consider two blocks of urethane. One is a cylinder, the other is a block of the
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Effect of Loading Conditions on Polyurethane
Effect of Loading Conditions on Polyurethane Designing Polyurethane Products Given an elastomeric shape (where the top and bottom surfaces are flat and parallel) which is compressed between parallel plates, the loaded surfaces of the elastomer want to spread or slip laterally, thus increasing the effective load-bearing area. If on the other hand, the loaded surfaces
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Urethane Fatigue Considerations
Urethane Fatigue Considerations Fatigue is an important consideration in the design of parts for cyclic dynamic applications. Fatigue and cut growth resulting from cyclic stress-strain are related. When testing for fatigue resistance for a specific application, it’s important to test at a strain energy experienced by the part in actual service. Strain energy is a
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