Investigation of Residual Stresses in Extruded Thermoplastic PE-RT Pipes
Arun Biradar, Pierre Mertiny · 2026
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Description
Arun Biradar and Pierre Mertiny measure locked-in stress in plastic pipes in a 2026 study. PE-RT, a heat-tolerant polyethylene, serves homes and industry, but stresses frozen in during extrusion can shorten a pipe's life. Almost no published data covered this material. The team cut rings from pipes of several sizes from one plant and watched them spring open, a slitting method that reveals the hidden stress.
They then baked pipes at varied temperatures to relax the stress. Heating to 115 degrees worked best for the test size. Applying that bake to the other sizes cut the hoop-direction stress sharply. The recipe gives makers a practical way to ship calmer pipes, and the data fill a gap for designers who size systems for decades of service.
Catalog record
| CREATOR | Arun Biradar, Pierre Mertiny |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 43 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |