Norm NBN EN ISO 6721-3:2021
Kunststoffen - Bepaling van dynamische mechanische eigenschappen - Deel 3: Buigtrilling - Resonantiecurve-methode (ISO 6721-3: 2021)
Deze titel is een machinevertaling van de oorspronkelijke Engelstalige titel
(Engelstalige pagina
).
Status
:
Actief
Publicatiedatum
:
3/2021
Talen
:
EN/FR/DE
ICS
:
83.080.01 Kunststoffen, algemeen
Samenvatting :
This document specifies a bending-vibration method based upon resonance curves for determining the flexural complex modulus E*f of homogeneous plastics and the damping properties of laminated plastics intended for acoustic insulation, for example systems consisting of a metal sheet coated with a damping plastic layer, or sandwich systems consisting of two sheet-metal layers with an intermediate plastic layer. For many purposes, it is useful to determine these properties as a function of temperature and frequency.