Bs 7291 pex pb thermoplastic 管道

參考數据與工程 information about bs 7291 pex pb thermoplastic 管道用于材料性質 applications.

7291pexthermoplasticpipe

Overview

Engineering reference data for Bs 7291 Pex Pb Thermoplastic Pipe in material science and properties.

$\sigma = \frac{F}{A}$

Force per unit area.

$\varepsilon = \frac{\Delta L}{L_0}$

Change in length per original length.

$\sigma = E \varepsilon$

Stress proportional to strain in elastic region.

$\Delta L = \alpha L_0 \Delta T$

Length change due to temperature.

Symbol	Description	Unit
$\sigma$	Stress	Pa
$\varepsilon$	Strain	—
$E$	Young's modulus	Pa
$\alpha$	Thermal expansion coefficient	1/°C
$\Delta T$	Temperature change	°C