Research project NEMA

NEMA

Supplementing a standard for toughened safety glass with stress-optical measurement methods and analysis concepts to reduce destructive testing

Project name	Supplementing a standard for toughened safety glass with stress-optical measurement methods and analysis concepts to reduce destructive testing
Acronym	NEMA
Project partner	TU Darmstadt, Institut für Statik und Konstruktion Hochschule München Sicherheitsglastechnik Oelsnitz (Vogtl.) GmbH INTERPANE Glasgesellschaft mbH Plattling Glas Trösch GmbH Mengen softsolution GmbH
Grantor	Federal Ministry for Economic Affairs and Climate Action
Duration	2 years
Project content	The goal of the project is to design an addition to the European standard for stress-optical measurement methods and analysis concepts to reduce destructive testing for determining the pre-stress quality of tempered glass. This includes determining the flexural strength and fracture structure. Established measurement methods and innovative analysis concepts will be utilized to identify correlations between edge membrane stress and flexural strength, as well as between edge membrane stress, surface pressure stress, and simulated glass breakage patterns and fracture structure. Another objective is to capture the process parameters during the production of the single-pane safety glass. This aims to establish a correlation between the hyperdimensional space of process parameters and edge membrane stress or resulting fracture patterns.