PDS – Understanding Percentage of Design Stiffness

The Percentage of Design Stiffness (PDS) is crucial for evaluating the condition of polymers and resins in fiber-reinforced polymer equipment. PDS measures how much stiffness a material retains over time.

Why Does It Matter?
Resin and polymer conditions directly impact the material’s lifespan, with polymer damage occurring first and affecting the entire system.

UltraAnalytix Insights
UltraAnalytix helps determine the PDS of polymers, providing valuable insights into their current state. PDS focuses solely on the polymer itself, excluding any reinforcement damage. These values can be calculated for the material’s overall thickness and specific zones.

Fitness For Service (FFS) Evaluations
In Fitness For Service (FFS) evaluations, a key aspect is predicting how long the equipment can continue to be used safely. By analyzing changes in PDS from UltraAnalytix readings, we can forecast future PDS values. This information helps determine the equipment’s current state, remaining lifespan, and aids in planning maintenance to ensure reliability and safety.