Multiobjective Optimization of Carbon Fiber‐Reinforced Plastic Composite Bumper Based on Adaptive Genetic Algorithm

Gao, Dawei; Liang, Haotian; Shi, Gui-jie; Cao, Liqin

doi:10.1155/2019/8948315

Cited by 11 publications

(5 citation statements)

References 38 publications

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“…Carbon fiber reinforced polymers, or often carbon fiber, are very strong and lightweight fiber reinforced plastics that contain carbon fiber. 11,12 The shape of the honeycomb minimizes the use of expensive and heavy materials, so aluminum honeycombs are manufactured by an expansion process. 13,14 The foam metal bumper has excellent impact resistance.…”

Section: Literature Reviewmentioning

confidence: 99%

Experimental investigation and crashworthiness analysis of 3D printed carbon PA automobile bumper to improve energy absorption by using LS-DYNA

Yeshanew,

Ahmed,

Sinha

et al. 2023

Advances in Mechanical Engineering

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This research work aimed to enhance the crashworthiness of the existing automobile bumper to minimize crash injuries. As per the simulation results the weight of the carbon polyamide-based bumper is reduced in comparison with the existing steel bumper by 9.7 kg or 47.5%, with this reduction in weight 38% increase in fuel economy has been estimated. The energy absorption capability of carbon polyamide bumper is improved from the existing steel and aluminum bumper by 11.15% and 16.3% respectively and with this modification, the impact force is reduced from the existing steel bumper, which has 4.87 kN and aluminum alloy bumper, which has 4.10–1.86 kN. The crashworthiness parameter result analysis showed that the corrugated bumper geometry had a structural energy absorption (SEA), total energy absorption (TEA), and crush force efficiency (CFE) of 103.28 J/kg, 911 J, and 77.99%, which is higher than the hallow bumper geometry of 102.4 J/kg, 847 J, and 65.83% respectively. In addition to that, as the thickness of carbon polyamide bumper reduced from 4 mm to 3.5, 3, and 2.5 mm, deformation increased with a small rate from 13.5 mm to 16.7, 18.52, and 22.04 mm.

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Section: Literature Reviewmentioning

confidence: 99%

Experimental investigation and crashworthiness analysis of 3D printed carbon PA automobile bumper to improve energy absorption by using LS-DYNA

Yeshanew,

Ahmed,

Sinha

et al. 2023

Advances in Mechanical Engineering

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“…The objective function [ 42 , 43 ] of this paper is to minimize the first steady-state transition load of the anti-symmetric cylindrical shell and maximize the second stable transition load. At the same time, in order to prevent excessive stress concentration in the anti-symmetric cylindrical shell, the maximum stress value of the ply when the anti-symmetric cylindrical shell is in the second stable state is taken as a constraint condition.…”

Section: Multi-objective Optimization Model Based On Nsga-ⅱ Algorithmmentioning

confidence: 99%

Stable Characteristics Optimization of Anti-Symmetric Cylindrical Shell with Laminated Carbon Fiber Composite

et al. 2022

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This paper proposes a multi-objective optimization model for anti-symmetric cylindrical shell in the bionic gripper structure. Here, the response surface method is used to establish multiple surrogate models of the anti-symmetric cylindrical shell, and the non-dominated sorting genetic algorithm-II (NSGA-II) is used to optimize the design space of the anti-symmetric cylindrical shell; the design points of the anti-symmetric cylindrical shell are verified by experimental methods. The optimization goals are that the first steady state transition load (the transition process of the bionic gripper structure from the open state to the closed state) of the anti-symmetric cylindrical shell is minimized, and the second steady state transition load (the transition process of the bionic gripper structure from the closed state to the open state) is the largest. At the same time, in order to prevent stable instability caused by stress concentration in the second steady state of the anti-symmetric cylindrical shell, the maximum principal plane stress is given as the constraint condition. The validity of the optimization results is verified by finite element and experimental methods. Due to the stable transition load of the anti-symmetric cylindrical shell being significantly larger than that of the orthogonal laminated plate, therefore, the anti-symmetric cylindrical shell has potential application prospects in the application of deformable structures and bionic structures that require composite functions such as having light weight, high strength, and large clamping force. The novelty of this paper lies in the multi-objective optimization of the application of the antisymmetric bistable cylindrical shell in the bionic gripper structure.

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“…The application of finite-element (FE) analysis along with advanced optimization techniques has been considered an effective method to design and improve the crashworthiness performance of composite structures. [13][14][15][16] Recently, the use of composite instead of metallic materials in automobile chassis was proposed by Kiran. 17 Kim et al presented a fiberglass-reinforced composite hood to replace conventional metallic hoods.…”

Section: Introductionmentioning

confidence: 99%

“…However, little is known about the influence of fiber angle orientations on the crashworthiness performance of unidirectional composites, and this area of research has received surprisingly limited attention. 15,48,49 Furthermore, although it has been proven that the misalignment of fibers could cause dramatic loss of mechanical properties, and even though it is rare for fibers in a composite to be perfectly aligned from a practical perspective, 50 no study has considered the uncertainties of fiber alignments. Filling in the aforementioned gaps is the focal point of this research.…”

Section: Introductionmentioning

confidence: 99%

A probabilistic study into the influences of fiber angle orientations on energy absorption performance of carbon fiber-reinforced polymer composite tubes

Abbasi

Khalkhali

Sackmann

2022

Journal of Composite Materials

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The influence of fiber orientations on the crashworthiness of carbon fiber-reinforced polymer (CFRP) composite tubes was investigated to fill in the knowledge gap regarding the effects of fiber angle on the energy-absorbing potential of these tubes. This study adopted the Hammersley sequence sampling (HSS) method to generate a quasi-random distribution of the design objectives. Then, LS-DYNA was utilized for numerical quasi-static crushing tests to measure the specific energy absorption (SEA) and the crushing force efficiency (CFE) of a quasi-static CFRP tube at different fiber angles. The Kriging method was implemented to generate a surrogate model. Finally, Pareto results were extracted deterministically and probabilistically using the NSGAII algorithm. Fiber orientation angles are naturally exposed to uncertainties in the manufacturing process; thus, the main contribution of the study is illustrating the effects of fiber angle orientations on the energy-absorbing characteristics of CFRP tubes while incorporating uncertainties into the optimization procedure. Interestingly, the optimum fiber angle orientations revealed the potential advantage of using non-conventional angle-ply layouts by improving the CFE by up to 4% compared with the initial design configuration. The results also demonstrated the capability and superior performance of the optimization procedure in finding the global optima, and the necessity of conducting a probabilistic examination in similar studies.

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Multiobjective Optimization of Carbon Fiber‐Reinforced Plastic Composite Bumper Based on Adaptive Genetic Algorithm

Cited by 11 publications

References 38 publications

Experimental investigation and crashworthiness analysis of 3D printed carbon PA automobile bumper to improve energy absorption by using LS-DYNA

Experimental investigation and crashworthiness analysis of 3D printed carbon PA automobile bumper to improve energy absorption by using LS-DYNA

Stable Characteristics Optimization of Anti-Symmetric Cylindrical Shell with Laminated Carbon Fiber Composite

A probabilistic study into the influences of fiber angle orientations on energy absorption performance of carbon fiber-reinforced polymer composite tubes

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