BS EN 16613:2019
$142.49
Glass in building. Laminated glass and laminated safety glass. Determination of interlayer viscoelastic properties
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 26 |
This document specifies a test method for determining the mechanical viscoelastic properties of interlayer materials. The interlayers under examination are those used in the production of laminated glass and/or laminated safety glass. The interlayer viscoelastic properties are needed in order to determine the load resistance of laminated glass. From the tensile modulus in particular conditions of temperature and load duration, an interlayer can be placed into a family that relates to a specific interlayer shear transfer coefficient. This value can be used in the simplified calculation method described in EN 16612. Informative Annex D explains the background to the determination of families relating to a specific interlayer shear transfer coefficient.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions |
| 8 | 4 Symbols and abbreviations |
| 9 | 5 Selection of testing procedure 5.1 Isotropic interlayer materials 5.2 Non-isotropic interlayer materials |
| 10 | 5.3 Interlayers which cannot be formed into small test pieces 6 Test procedure 6.1 General 6.2 Test specimens 6.3 Test method 6.3.1 Glass transition temperature, Tg |
| 11 | 6.3.2 Determination of EL(Τ, f) 6.4 Determination of EL(Tref,f) |
| 12 | 7 Evaluation of ω 7.1 Determining EL(Τ,f) |
| 13 | 7.2 Load durations and temperature ranges 7.3 Determining the interlayer stiffness family |
| 16 | 8 Test report |
| 17 | Annex A (normative)Alternative method for non-isotropic interlayers and interlayers which cannot be formed into small test pieces A.1 Method A.2 Sample A.3 Test conditions |
| 18 | A.4 Interpretation of the results A.5 Extrapolation to long duration curves A.6 Interlayer shear coefficient, ω, and load condition |
| 19 | Annex B (normative)Preparation of test specimens B.1 Folio interlayers B.1.1 Polyvinyl butyral (PVB), ethyl vinyl acetate (EVA), and polyurethane (PU) B.1.2 Ionoplast interlayers B.2 Cast in place interlayers B.3 Intumescent interlayers |
| 20 | Annex C (normative)Interlayer stiffness family |
| 21 | Annex D (normative)Determination of the interlayer shear transfer coefficient from the interlayer modulus D.1 Summary of the evaluation D.2 Evaluation of ω(Τ,t) D.2.1 Finite element calculation taking into account the interlayer properties |
| 22 | D.2.2 Upper and lower bounds D.2.3 Determination of equivalent thickness |
| 23 | D.2.4 Determination of ω from hmono |
