Jeon, Haemin Yu, Jaesang Lee, Hunsu Kim, G. M. Kim, Jae Woo Jung, Yong Chae Yang, Cheol-Min Yang, B. J. 2024-01-20T00:33:29Z 2024-01-20T00:33:29Z 2021-09-05 2017-09 0178-7675 https://pubs.kist.re.kr/handle/201004/122320 Continuous fiber-reinforced composites are important materials that have the highest commercialized potential in the upcoming future among existing advanced materials. Despite their wide use and value, their theoretical mechanisms have not been fully established due to the complexity of the compositions and their unrevealed failure mechanisms. This study proposes an effective three-dimensional damage modeling of a fibrous composite by combining analytical micromechanics and evolutionary computation. The interface characteristics, debonding damage, and micro-cracks are considered to be the most influential factors on the toughness and failure behaviors of composites, and a constitutive equation considering these factors was explicitly derived in accordance with the micromechanics-based ensemble volume averaged method. The optimal set of various model parameters in the analytical model were found using modified evolutionary computation that considers human-induced error. The effectiveness of the proposed formulation was validated by comparing a series of numerical simulations with experimental data from available studies. English SPRINGER NANOTUBE REINFORCED COMPOSITES MATRIX COMPOSITES ELASTIC-MODULI MICROMECHANICS STRENGTH MODEL DEFORMATION STRESS FUTURE GLASS A combined analytical formulation and genetic algorithm to analyze the nonlinear damage responses of continuous fiber toughened composites Article 10.1007/s00466-017-1398-z 1 COMPUTATIONAL MECHANICS, v.60, no.3, pp.393 - 408 COMPUTATIONAL MECHANICS 60 3 393 408 scie scopus 000413623200003 2-s2.0-85018699959 Mathematics, Interdisciplinary Applications Mechanics Mathematics Mechanics Article NANOTUBE REINFORCED COMPOSITES MATRIX COMPOSITES ELASTIC-MODULI MICROMECHANICS STRENGTH MODEL DEFORMATION STRESS FUTURE GLASS Fiber-reinforced polymer composites Micromechanics Genetic algorithm Damage modeling Failure mechanism