Computational Design and Modeling of Advanced Composites and Structures

Submission Deadline: 01 March 2025 View: 242 Submit to Special Issue

Guest Editors

Prof. Liang Wang, Shanghai Jiao Tong University, China.
Prof. Yongxing Shen, Shanghai Jiao Tong University, China.
Prof. Wenjie Xia, Iowa State University, USA.
Dr. Zifeng Yuan, Peking University, China.

Summary

This special issue focuses on the optimization design and simulation of advanced polymer/metal matrix composites at various length scales, ranging from nano/molecular to full product/structure level. The research targets mechanical issues and performance of advanced composites and structures, with emphasis on the application and development of novel numerical methods and simulation tools, such as molecule dynamics, phase field method, peridynamics, reduced-order-homogenization method and advanced finite element methods, etc. The key areas of interest include all aspects related to design, validation, characterization and testing of composite materials, including but not limited to nanocomposites, structural and functional composites, novel composite material concepts, and also green and bio-based composites.

Keywords

Optimization design, multi-scale modeling, advanced composites and structures, numerical methods

Published Papers

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ARTICLE

Modeling the Interaction between Vacancies and Grain Boundaries during Ductile Fracture
Mingjian Li, Ping Yang, Pengyang Zhao
CMES-Computer Modeling in Engineering & Sciences, Vol.140, No.2, pp. 2019-2034, 2024, DOI:10.32604/cmes.2024.048334
（This article belongs to the Special Issue: Computational Design and Modeling of Advanced Composites and Structures)
Abstract The experimental results in previous studies have indicated that during the ductile fracture of pure metals, vacancies aggregate and form voids at grain boundaries. However, the physical mechanism underlying this phenomenon remains not fully understood. This study derives the equilibrium distribution of vacancies analytically by following thermodynamics and the micromechanics of crystal defects. This derivation suggests that vacancies cluster in regions under hydrostatic compression to minimize the elastic strain energy. Subsequently, a finite element model is developed for examining more general scenarios of interaction between vacancies and grain boundaries. This model is first verified and More >

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ARTICLE

Effect of Modulus Heterogeneity on the Equilibrium Shape and Stress Field of α Precipitate in Ti-6Al-4V
Di Qiu, Rongpei Shi
CMES-Computer Modeling in Engineering & Sciences, Vol.140, No.1, pp. 1017-1028, 2024, DOI:10.32604/cmes.2024.048797
（This article belongs to the Special Issue: Computational Design and Modeling of Advanced Composites and Structures)
Abstract For media with inclusions (e.g., precipitates, voids, reinforcements, and others), the difference in lattice parameter and the elastic modulus between the matrix and inclusions cause stress concentration at the interfaces. These stress fields depend on the inclusions’ size, shape, and distribution and will respond instantly to the evolving microstructure. This study develops a phase-field model concerning modulus heterogeneity. The effect of modulus heterogeneity on the growth process and equilibrium state of the α plate in Ti-6Al-4V during precipitation is evaluated. The α precipitate exhibits strong anisotropy in shape upon cooling due to the interplay of the… More >

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ARTICLE

Finite Element Simulations of the Localized Failure and Fracture Propagation in Cohesive Materials with Friction
Chengbao Hu, Shilin Gong, Bin Chen, Zhongling Zong, Xingwang Bao, Xiaojian Ru
CMES-Computer Modeling in Engineering & Sciences, Vol.140, No.1, pp. 997-1015, 2024, DOI:10.32604/cmes.2024.048640
（This article belongs to the Special Issue: Computational Design and Modeling of Advanced Composites and Structures)
Abstract Strain localization frequently occurs in cohesive materials with friction (e.g., composites, soils, rocks) and is widely recognized as a fundamental cause of progressive structural failure. Nonetheless, achieving high-fidelity simulation for this issue, particularly concerning strong discontinuities and tension-compression-shear behaviors within localized zones, remains significantly constrained. In response, this study introduces an integrated algorithm within the finite element framework, merging a coupled cohesive zone model (CZM) with the nonlinear augmented finite element method (N-AFEM). The coupled CZM comprehensively describes tension-compression and compression-shear failure behaviors in cohesive, frictional materials, while the N-AFEM allows nonlinear coupled intra-element discontinuities More >

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ARTICLE

Investigation of Projectile Impact Behaviors of Graphene Aerogel Using Molecular Dynamics Simulations
Xinyu Zhang, Wenjie Xia, Yang Wang, Liang Wang, Xiaofeng Liu
CMES-Computer Modeling in Engineering & Sciences, Vol.139, No.3, pp. 3047-3061, 2024, DOI:10.32604/cmes.2023.046922
（This article belongs to the Special Issue: Computational Design and Modeling of Advanced Composites and Structures)
Abstract Graphene aerogel (GA), as a novel solid material, has shown great potential in engineering applications due to its unique mechanical properties. In this study, the mechanical performance of GA under high-velocity projectile impacts is thoroughly investigated using full-atomic molecular dynamics (MD) simulations. The study results show that the porous structure and density are key factors determining the mechanical response of GA under impact loading. Specifically, the impact-induced penetration of the projectile leads to the collapse of the pore structure, causing stretching and subsequent rupture of covalent bonds in graphene sheets. Moreover, the effects of temperature More >

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ARTICLE

Particle Discontinuous Deformation Analysis of Static and Dynamic Crack Propagation in Brittle Material
Zediao Chen, Feng Liu
CMES-Computer Modeling in Engineering & Sciences, Vol.139, No.2, pp. 2215-2236, 2024, DOI:10.32604/cmes.2023.046618
（This article belongs to the Special Issue: Computational Design and Modeling of Advanced Composites and Structures)
Abstract Crack propagation in brittle material is not only crucial for structural safety evaluation, but also has a wide-ranging impact on material design, damage assessment, resource extraction, and scientific research. A thorough investigation into the behavior of crack propagation contributes to a better understanding and control of the properties of brittle materials, thereby enhancing the reliability and safety of both materials and structures. As an implicit discrete element method, the Discontinuous Deformation Analysis (DDA) has gained significant attention for its developments and applications in recent years. Among these developments, the particle DDA equipped with the bonded… More >

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Computational Design and Modeling of Advanced Composites and Structures

Guest Editors

Summary

Keywords

Published Papers

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510

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282

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774

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447

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350

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271

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1097

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412

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1

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1286

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583

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