Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Next generation calculation method for structural silicone joint dimensioning

Next generation calculation method for structural silicone joint dimensioning Bonding of glass onto aluminum frames, known as structural silicone glazing, has been applied for more than 50 years on facades. Traditionally, the silicone bite is calculated using a simplified equation assuming a homogenous stress distribution along the sealant bite. Due to the complexity of façade designs the assumptions behind simplified equations are reaching their limit of validity and requirements to use finite element analysis (FEA) increase since it allows to describe the local stress distribution within sealant volume. However, there is no standardized methodology to run FEA for evaluation of SSG. Furthermore, the complexity of FEA is a limiting factor to its systematic use as a calculation method for all projects. For these reasons, a next generation calculation method was developed which predicts deformation of SSG with good accuracy compared to FEA predictions. The basis of the method was developed 25 years ago and was included as annex in ETAG002. The validation of the method was done by comparing experimental measurements, results of FEA modeling and outcome of the new calculation method. To further improve accuracy, an extension of the relationship for a nonlinear material is proposed, assuming a Neo-Hookean stress–strain behavior for silicone sealant. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Glass Structures & Engineering Springer Journals

Next generation calculation method for structural silicone joint dimensioning

Loading next page...
 
/lp/springer-journals/next-generation-calculation-method-for-structural-silicone-joint-0YC7WdbPHQ
Publisher
Springer Journals
Copyright
Copyright © 2017 by Springer International Publishing AG Switzerland
Subject
Engineering; Building Construction and Design; Structural Materials; Building Materials
ISSN
2363-5142
eISSN
2363-5150
DOI
10.1007/s40940-017-0044-7
Publisher site
See Article on Publisher Site

Abstract

Bonding of glass onto aluminum frames, known as structural silicone glazing, has been applied for more than 50 years on facades. Traditionally, the silicone bite is calculated using a simplified equation assuming a homogenous stress distribution along the sealant bite. Due to the complexity of façade designs the assumptions behind simplified equations are reaching their limit of validity and requirements to use finite element analysis (FEA) increase since it allows to describe the local stress distribution within sealant volume. However, there is no standardized methodology to run FEA for evaluation of SSG. Furthermore, the complexity of FEA is a limiting factor to its systematic use as a calculation method for all projects. For these reasons, a next generation calculation method was developed which predicts deformation of SSG with good accuracy compared to FEA predictions. The basis of the method was developed 25 years ago and was included as annex in ETAG002. The validation of the method was done by comparing experimental measurements, results of FEA modeling and outcome of the new calculation method. To further improve accuracy, an extension of the relationship for a nonlinear material is proposed, assuming a Neo-Hookean stress–strain behavior for silicone sealant.

Journal

Glass Structures & EngineeringSpringer Journals

Published: Jun 23, 2017

References