Email this article CALCULATION OF TORSIONAL STIFFNESS FOR CORRUGATED CORE CARDBOARD PANELS BY ANALYTICAL METHOD AND NUMERICAL SIMULATION
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Received: 13/04/25 Revised: 13/05/25 Published: 13/05/25Authors
1. Dao Lien Tien, TNU - University of Technology2. Duong Pham Tuong Minh, TNU - University of Technology
3. Luong Viet Dung
, TNU - University of Technology
Abstract
The torsional stiffness of corrugated core board is an important mechanical property that represents the ability to resist torsional deformation when subjected to the twisting force of the packaging during use. However, accurately calculating torsional stiffness still faces many challenges. This paper analyzes the torsional stiffness calculation process to identify existing difficulties, thereby proposing a method for determining the torsional stiffness of corrugated core board using analysis and numerical simulations. The analytical expression for calculating torsional stiffness is developed to allow fast and flexible calculations during the design process. A 3D numerical model is created in Abaqus software, accurately reproducing the geometry of the corrugated core layer to simulate the torsional behavior under torque effects. Comparison of the results between the two methods shows small deviations, confirming their accuracy. The research results provide a useful basis for the design, evaluation, and optimization of corrugated board structures in applications requiring torsional resistance.
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DOI: https://doi.org/10.34238/tnu-jst.12561
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