Numerical Analysis and 1D/2D Sensitivity Study for Monolithic and Laminated Structural Glass Elements under Thermal...

Area of Science:

• Engineering
• Materials Science
• Structural Analysis

Background:

• Glass is a key structural material in buildings and vehicles, often as laminated glass (LG).
• The temperature-dependent behavior and thermomechanical degradation of LG components significantly impact structural safety.
• Accurate design of glazing systems requires understanding these thermal effects.

Purpose of the Study:

• To investigate the use of uncoupled thermomechanical finite element (FE) models for monolithic (MG) and LG specimens under radiant heating.
• To assess the influence of various parameters on the accuracy of FE simulations for glazing systems.
• To identify key input parameters and limitations of FE methods for reliable structural design.

Main Methods:

• Development and application of 1D and 2D FE models for MG and LG specimens.
• Focus on thermal analysis as the initial step in uncoupled thermomechanical simulations.
• Parametric studies based on literature experimental results to evaluate modeling assumptions.

Main Results:

• FE simulations highlight the sensitivity of glazing system performance to thermal effects.
• Analysis reveals the impact of material properties (conductivity, specific heat) and thermal boundary conditions (emissivity).
• Geometrical features, LG composition, loading patterns, and mechanical restraints significantly influence simulation outcomes.

Conclusions:

• FE models are valuable tools for engineers designing glazing systems, but require careful calibration.
• Understanding the interplay between thermal parameters, material properties, and geometry is essential for accurate predictions.
• The study provides critical insights into the limitations and effective application of FE analysis in structural glass design.