Composites, Fiberglass & Advanced Materials worked example

Composite Defect Rate at 2.16% target composite defect rate: a worked example

Suppose target composite defect rate falls to 2.16%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Calculate defect rate for composite layup, cure, trim, inspection, or finishing operations.

The inputs for this scenario

  • composite defects found: 11 defects (held at the documented default)
  • composite parts or features inspected: 240 parts (held at the documented default)
  • target composite defect rate: 2.16 % (the input this scenario stresses; the baseline uses 3)

Working through the calculation

  • The calculation starts from the formula this tool documents: Composite Defect Rate = composite defects found ÷ composite parts or features inspected × 100.
  • composite defect rate works out to 4.58 % at these inputs, and this is the headline figure for the scenario.
  • composite defect rate gap to target works out to -2.42 points at these inputs.
  • composite defects found works out to 11 count at these inputs.
  • composite parts or features inspected works out to 240 count at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where target composite defect rate sits at 3% and the headline result is 4.58 %, this scenario lands almost exactly on the baseline at 4.58 %.
  • It divides composite defects found by composite parts or features inspected and multiplies by 100 to give a defect rate, then subtracts your target to show the gap in percentage points. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • composite defect rate: 4.58 % (headline result)
  • composite defect rate gap to target: -2.42 points
  • composite defects found: 11 count
  • composite parts or features inspected: 240 count

Run it with your numbers

  • To rerun this with your own numbers, open the live Composite Defect Rate calculator, set target composite defect rate to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.