Influence of Profiled Faces on the Overall Shear Performance of Strongly Profiled Sandwich Panel with Mineral Wool Core

• Published in: ce/papers Vol. 6; no. 3-4; pp. 1907 - 1912
• Main Authors: Silwal, Shekhar, Mela, Kristo, Ma, Zhongcheng
• Format: Journal Article
• Language: English
• Published: 01.09.2023
• Subjects: Cold formed Steel; Mineral wool; Profiled face; Sandwich panels; Shear modulus; Shear strength; Wrinkling
• ISSN: 2509-7075; 2509-7075
• DOI: 10.1002/cepa.2445

The total shear force induced on a profiled sandwich panel by an external load is distributed between the profiled face and core. Sandwich panel with a discrete core material such as mineral wool consists of multiple transverse lamella joints across the full width of the panel, affecting the overall shear performance of the panel as these joints have negligible resistance to shear. Additionally, in some cases the core material is partially bonded only to the lower flange of the profiled face which increase the concentration of stresses in the bonded area leading to the crushing of the core on the support. This work studies the distribution of shear force in mineral wool core sandwich panels with one profiled face utilizing a shear beam test on a specimen cut from the panel including the profiled part. Based on the results and failure modes obtained, this work investigates the behavior and role of the profiled face on the shear resistance of profiled sandwich panels. The distributed shear force between the core and profiled part obtained from the shear beam tests are compared with full‐scale tests suggested by the European Standard EN 14509:2013, thus, exploring the applicability of the devised shear beam test method for assessing the shear properties of profiled sandwich panel.