Questions & Answers
How can I assess the design pressure for metal multilayer pipes for different applications?
In order to assess the lifetime you need to have an ISO 9080 (ISO 21003) evaluation performed. You use the resulting linear LPL equation for your calculations.
Needed steps:
- Evaluation according to ISO 9080 (ISO 21003)
- LPL linearization according to ISO 21003 part 2
- Apply cumulative damage according to Miner’s rule, ISO 13760
Please note that the applied design coefficients depends on the plastic resin e.g. PE, PE-RT, PEX and PP.
Marco Mekes