Bonobo Optimizer Algorithm for Thermomechanical Stability Analysis of Laminated Plates with a Hole

• Published in: International journal of steel structures Vol. 25; no. 2; pp. 376 - 388
• Main Authors: Shaterzadeh, Alireza, Topal, Umut, Hadad, Vahid, Das, Amit Kumar
• Format: Journal Article
• Language: English
• Published: Seoul Korean Society of Steel Construction 01.04.2025; Springer Nature B.V; 한국강구조학회
• Subjects: Algorithms; Boundary conditions; Civil Engineering; Composite materials; Composite structures; Edge loading; Elastic buckling; Elastic deformation; Engineering; Fiber orientation; Hole size; Laminar composites; Materials Science; Optimization; Shear deformation; Solid Mechanics; Stability analysis; Thermomechanical analysis; 토목공학; Thermomechanical buckling; Laminated plates; Bonobo optimizer algorithm
• ISSN: 1598-2351; 2093-6311
• DOI: 10.1007/s13296-025-00947-7

This study focuses on the thermomechanical optimization of buckling resistance in laminated composite plate with a hole. The goal is to maximize the critical buckling load by identifying optimal fiber orientations within the layers using the Bonobo Optimizer Algorithm (BOA). The first-order shear deformation theory (FSDT) is employed to determine elastic buckling loads under combined thermomechanical loading. Numerical investigations are conducted for various parameters, including uniform temperature rises, edge loading conditions, support configurations, hole size ratios, load ratios, and geometric proportions. The results showed that these parameteres play a vital role in the the buckling load optimization of laminate composite plate with a hole. The study shows CCCC and SFSF boundary conditions yield the highest and lowest buckling loads, respectively. Critical buckling load decreases with temperature rise. Plates without cut-outs outperform those with cut-outs, and shorter plates under negative temperature rise achieve maximum buckling load. Uniform loading results in the lowest buckling capacity due to its larger loading area.