Summary and Outlook

A reflection of the given situation in material development, design, and use of SSG facades reveal the immediate need for better knowledge of material and system performance and durability. Complementary to the existing conven­tional approach, a coordinated dynamic-mechanical testing approach consist­ing of material and complex system tests is foreseen to improve the performance-oriented system design and durability prognosis. Based on prelim­inary material investigations on different sealants with a dynamic-mechanical spectrometer, the general potential of the approach was evaluated in this study. Based on the findings of this study, it appears possible to adapt this performance-related material test methodology to the field of SSG sealants. The various test results shown in this study demonstrate that the complex mechani­cal behavior of the sealant materials can be identified when exposed to specific load variations. The complex shear moduli are quantifiable. With it, a pre­condition for a subsequent numerical analysis and modeling seems to be given, because the knowledge of these parameters allows the use of modern tools, such as FEA, for the numerical design of glazings. The dynamic-mechanical test methodology also provides response to the materials structure, its technological behavior (extrusion, application), as well as to fatigue and ageing effects. Once the potential of the dynamic-mechanical material test methodology has been

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further validated, it could also underpin the development of improved technical rules by building code authorities.