Optimization of curvilinear fiber orientation of composite plates and its experimental validation

被引:25
作者
Matsuzaki, Ryosuke [1 ]
Mitsui, Kenta [1 ]
Hirano, Yoshiyasu [2 ]
Todoroki, Akira [3 ]
Suzuki, Yoshiro [3 ]
机构
[1] Tokyo Univ Sci, 2641 Yamazaki, Noda, Chiba 2788510, Japan
[2] Japan Aerosp Explorat Agcy, 6-13-1 Osawa, Mitaka, Tokyo 1810015, Japan
[3] Tokyo Inst Technol, Meguro Ku, 2-12-1 O Ookayama, Tokyo 1528551, Japan
关键词
Numerical analysis; Mechanical testing; Automated fibre placement (AFP); 3-D printing; OPEN-HOLE; STIFFNESS;
D O I
10.1016/j.compstruct.2020.112956
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
Variable stiffness composite (VSC) is a viable design extension of carbon fiber reinforced plastic (CFRP) laminates to obtain unique mechanical properties by changing the fiber orientation in a curvilinear manner. We optimized a VSC for open-hole tension laminates considering the automatic processing by the tow prepreg curve placement and evaluated the strength improvement with experiments. Multi -objective optimization using fracture criterion and mean curvature as objective functions resulted in higher strength gains for solutions with higher mean curvature and lower processability. Besides, by giving the molding conditions as constraints for optimization, the strength was improved while satisfying the molding conditions. The fabrication of optimum VSCs involved using a tabletop automated fiber placement. Strength tests showed a 34.3% improvement in the curvilinear prepreg path.
引用
收藏
页数:6
相关论文
共 21 条
[1]   Thermomechanical Response of Variable Stiffness Composite Panels [J].
Abdalla, M. M. ;
Gurdal, Z. ;
Abdelal, G. F. .
JOURNAL OF THERMAL STRESSES, 2009, 32 (1-2) :187-208
[2]   A Theoretical Model to Study the Influence of Tow-drop Areas on the Stiffness and Strength of Variable-stiffness Laminates [J].
Blom, Adriana W. ;
Lopes, Claudio S. ;
Kromwijk, Peter J. ;
Gurdal, Zafer ;
Camanho, P. P. .
JOURNAL OF COMPOSITE MATERIALS, 2009, 43 (05) :403-425
[3]   Damage monitoring and analysis of composite laminates with an open hole and adhesively bonded repairs using digital image correlation [J].
Caminero, M. A. ;
Lopez-Pedrosa, M. ;
Pinna, C. ;
Soutis, C. .
COMPOSITES PART B-ENGINEERING, 2013, 53 :76-91
[4]   Optimizing Fiber Direction in Perforated Orthotropic Media to Reduce Stress Concentration [J].
Cho, H. K. ;
Rowlands, R. E. .
JOURNAL OF COMPOSITE MATERIALS, 2009, 43 (10) :1177-1198
[5]  
Christensen RM, 2015, MECH COMPOSITE MAT
[6]   An efficient constraint handling method for genetic algorithms [J].
Deb, K .
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 2000, 186 (2-4) :311-338
[7]   A fast and elitist multiobjective genetic algorithm: NSGA-II [J].
Deb, K ;
Pratap, A ;
Agarwal, S ;
Meyarivan, T .
IEEE TRANSACTIONS ON EVOLUTIONARY COMPUTATION, 2002, 6 (02) :182-197
[8]   Stress analysis of multi-bolted joints for FRP pultruded composite structures [J].
Feo, Luciano ;
Marra, Gianfranco ;
Mosallam, Ayman S. .
COMPOSITE STRUCTURES, 2012, 94 (12) :3769-3780
[9]   INPLANE RESPONSE OF LAMINATES WITH SPATIALLY VARYING FIBER ORIENTATIONS - VARIABLE STIFFNESS CONCEPT [J].
GURDAL, Z ;
OLMEDO, R .
AIAA JOURNAL, 1993, 31 (04) :751-758
[10]   Optimization of fiber orientations near a hole for increased load-carrying capacity of composite laminates [J].
Huang, J ;
Haftka, RT .
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION, 2005, 30 (05) :335-341