| Related citation: | Ikram Feddal,Houcine Zniker,Hicham Mezouara,Zakia Ngadi,Mohamed Khalil El Kouifat.Effect of Material and Geometric Defects on BucklingResistance of Stiffened Panels[J].Journal of Harbin Institute Of Technology(New Series),2025,32(4):72-81.DOI:10.11916/j.issn.1005-9113.2025002. |
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| Author Name | Affiliation | | Ikram Feddal | Laboratory ICST, National School of Applied Sciences at Tetouan, Abdelmalek Essdi University, Tetouan B.P 2222, Morocco | | Houcine Zniker | National Higher School of Mining of Rabat, Mohammed V University in Rabat, Agdal-Rabat B.P 8007, Morocco | | Hicham Mezouara | Laboratory of Material Physics and Subatomic, Faculty of Sciences, Ibn Tofail University, Kenitra B.P 242, Morocco | | Zakia Ngadi | Energy Team Faculty of Sciences of Tetouan, Abdelmalek Essdi University, Tétouan B.P 2222, Morocco | | Mohamed Khalil El Kouifat | National Higher School of Mining of Rabat, Mohammed V University in Rabat, Agdal-Rabat B.P 8007, Morocco |
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| Abstract: |
| The buckling behavior of stiffened panels is significantly influenced by material and geometric defects, making it a critical factor in ensuring structural integrity and safety. These panels are widely used in mechanical, aerospace, marine, and civil engineering applications due to their ability to enhance bending stiffness with minimal additional weight. Under high loads or stress concentrations, localized structural failures can initiate global buckling in stiffened panels. This study investigates how such defects affect the critical buckling load, stiffness, and thickness of stiffened panels. Two finite element analyses were conducted: a linear analysis to identify the initial buckling mode and a nonlinear analysis using the Riks algorithm in Abaqus CAE, incorporating localized imperfections. The simulations show that material and geometric defects can reduce buckling resistance depending on their severity. |
| Key words: Finite Element Method (FEM) buckling Friction Stir Welding (FSW) stiffened panels Abaqus CAE imperfections |
| DOI：10.11916/j.issn.1005-9113.2025002 |
| Clc Number:TB301 |
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