Article
Engineering, Civil
Bin Yang, Hongjian Wang, Yuan Chen, Kunkun Fu, Yan Li
Summary: This study investigates the drilling responses of carbon fibre reinforced plastic composite sandwich panels through experiments and finite element analysis, with validation and analysis of damage mechanisms. The results show maximum errors between FEA-predicted and experimental thrust forces of 12.5% and 7.5% for CSPs, and provide a detailed study of damage mechanisms during drilling.
THIN-WALLED STRUCTURES
(2021)
Article
Mechanics
Jingwei Zhang, Tom Taylor, Love Shukla, Jun Yanagimoto
Summary: The P-HF-P process involves hot pressing, pre-curing, hot forming, and post-curing CFRP prepregs, leading to 3D shapes. By optimizing the pre-curing time, the P-HF-P process achieves improved void fraction, flexural properties, load-bearing capacity, and energy absorption ability compared to the autoclave process, striking a balance between productivity and quality for CFRP products.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Manufacturing
Xiao Xiao, Jin-Jae Kim, Seok-Hwan Oh, Young-Suk Kim
Summary: A hybrid incremental sheet-forming technique for carbon fiber reinforced thermosets (CFRTS) was developed and applied, showing promising results for both single- and multi-layer prepregs. Finite element simulations accurately predicted the deformation shape and shear angle of the CFRP sheet during the incremental sheet forming (ISF) process, indicating the effectiveness of the proposed forming strategy.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Mechanics
Zhen-Yu Li, Xin-Tao Wang, Li Ma, Lin-Zhi Wu
Summary: Auxetic structures have attracted attention due to their unconventional behavior, but their low stiffness limits their application. By using high-performance carbon fiber reinforced polymer composites, a study shows that a composite structure consisting of corrugated sheets and tubes exhibits a negative Poisson's ratio effect in large compression strain range.
COMPOSITE STRUCTURES
(2022)
Article
Engineering, Civil
Bin Yang, Yuan Chen, Juhyeong Lee, Kunkun Fu, Yan Li
Summary: A finite element model was developed to predict the low-velocity impact and compression-after-impact behavior of woven carbon fiber reinforced polymer composites. Experimental results validated the accuracy of the model, and detailed microscopic damage analysis was conducted on the composites. The effects of impactor diameter and impact energy on impact damage and CAI behaviors were discussed based on the model.
THIN-WALLED STRUCTURES
(2021)
Article
Engineering, Manufacturing
F. Yu, S. Chen, L. T. Harper, N. A. Warrior
Summary: A global-to-local modelling strategy is proposed to predict macroscale defects in biaxial non-crimp fabric during double diaphragm forming. The two-stage approach combines coarse and fine mesh simulations to accurately predict forming-induced defects, showing a CPU time reduction of approximately 13% compared to high fidelity full-scale models. The methodology is validated through fabric forming experiments, demonstrating good agreement between predicted and observed defect locations and characteristics.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Engineering, Marine
Jung Min Sohn, Spyros Hirdaris, Jani Romanoff, Sang Jin Kim
Summary: This paper investigates the collapse behavior of submarine hulls under hydrostatic pressure loads and proposes a computational modeling approach. The accuracy of the numerical model is validated by comparing with experimental data. The effects of different material models and ply sequence parameters on collapse strength are examined, and the applicability of existing design codes is evaluated.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Mechanics
Ivica Smojver, Darko Ivancevic, Dominik Brezetic
Summary: This work presents a micromechanical constitutive model of an intrinsically self-healing unidirectional CFRP composite material. The model is implemented in Abaqus/Standard software and validated using experimental results. The results show that the model accurately simulates the damage and healing processes of the composite material.
COMPOSITE STRUCTURES
(2022)
Article
Acoustics
Yuan Feng, Abdul Hamid Sheikh, Ching-Tai Ng, Scott T. Smith
Summary: This paper presents a higher order laminate model with sub-lamination capability for simulating wave propagation within delaminated composite and sandwich beams. Each sub-laminate adopts cubic and quadratic through-thickness variation for axial and transverse displacement, respectively. The model can achieve the desired level of accuracy and computational efficiency by using a suitable sub-lamination scheme, and it also incorporates the effect of contact within delamination regions.
JOURNAL OF SOUND AND VIBRATION
(2023)
Article
Engineering, Manufacturing
Johann Koerbelin, Nilas Junge, Bodo Fiedler
Summary: The study implemented temperature-dependent material properties into a continuum-damage-based (CDM) model to describe the progressive failure of CFRP under temperature influence. Simulation results showed that the model accurately represented the damage from low-velocity impact at different temperatures and impact energies, and that increased interlaminar ERR did not reduce delamination size but affected intralaminar damage and overall structural response. Compression after impact (CAI) simulations aligned well with experimental data, highlighting the importance of temperature in residual strength over impact energy. The proposed approach and model can predict CFRP behavior under temperature influence and complex load cases.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Mechanics
F. Cannizzaro, B. Panto, S. Caddemi, I Calio
Summary: This paper presents a new macro-element model for simulating the interaction between masonry structures and Externally Bonded Composite (EBC) layers. The proposed model can provide a reliable simulation of EBC layer applications while maintaining a low computational burden. Experimental and numerical tests are used to validate the new macro-modelling approach.
COMPOSITE STRUCTURES
(2023)
Article
Engineering, Multidisciplinary
Jin Huang, Philippe Boisse, Nahiene Hamila
Summary: The simulation approach proposed in this study accurately determines the state of tufted preforms after forming and takes into account the wrinkles that may occur. The modeling of textile reinforcements and tufting threads by stress resultant shells and rod chains with friction sliding, respectively, along with the consideration of thread bending using neighboring elements, provides a comprehensive understanding of the forming process of tufted preforms.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Engineering, Multidisciplinary
Jingwei Zhang, Jun Yanagimoto
Summary: The study combines homogenization-based topology optimization with elastically isotropic lattice structures to introduce optimal structural hierarchy into conventional pyramidal structures, improving their efficiency and performance. The optimized structure shows higher compressive modulus and energy absorption capability compared to unoptimized and traditional pyramidal structures.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Mechanics
Hui Zhang, Jing Sun, Xiaobo Rui, Si Liu
Summary: This research focuses on developing a method for detecting and imaging delamination damage in CFRP composite laminate structures. The traditional guided wave detection methods rely on the reflected wave signal at the defect, but delamination damage often produces weak reflected wave signals compared to surface damage. The proposed method uses full-wavefield data and enhances sensitive modes in order to visualize the morphology of delamination. The method is validated through simulations and experiments.
COMPOSITE STRUCTURES
(2023)
Article
Engineering, Multidisciplinary
Pawel Dunaj
Summary: This paper presents a finite element model updating algorithm based on a substructuring method, which reduces computational time. The updating process consists of local and global updating, using inverse variance weighting as the minimization criterion, and enables estimation of uncertainty levels of model parameters. The algorithm achieved significant improvement in an application case.
Review
Computer Science, Interdisciplinary Applications
Arnab Banerjee, Raj Das, Emilio P. Calius
ARCHIVES OF COMPUTATIONAL METHODS IN ENGINEERING
(2019)
Article
Mechanics
Maedeh Amirpour, Simon Bickerton, Emilio Calius, Brian R. Mace, Raj Das
COMPOSITE STRUCTURES
(2018)
Article
Engineering, Manufacturing
A. Gargano, K. Pingkarawat, V Pickerd, T. Delaney, R. Das, A. P. Mouritz
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2018)
Article
Automation & Control Systems
Jinghui Cao, Sheng Quan Xie, Raj Das
IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY
(2018)
Article
Mechanics
A. Banerjee, E. P. Calius, R. Das
INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS
(2018)
Article
Mechanics
Arnab Banerjee, Emilio P. Calius, Raj Das
INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS
(2018)
Article
Engineering, Aerospace
Guobiao Hu, Lihua Tang, Raj Das
JOURNAL OF AEROSPACE ENGINEERING
(2018)
Article
Physics, Applied
Guobiao Hu, Lihua Tang, Raj Das
JOURNAL OF APPLIED PHYSICS
(2018)
Review
Instruments & Instrumentation
Xin Ren, Raj Das, Phuong Tran, Tuan Duc Ngo, Yi Min Xie
SMART MATERIALS AND STRUCTURES
(2018)
Article
Mechanics
Carlos Garza, Raj Das, Anton Shterenlikht, Martyn Pavier
COMPOSITE STRUCTURES
(2018)
Article
Engineering, Civil
Youming Chen, Raj Das, Mark Battley, Zhigang Xu
THIN-WALLED STRUCTURES
(2018)
Article
Engineering, Multidisciplinary
Swagata Dutta, Nam Kyeun Kim, Raj Das, Debes Bhattacharyya
COMPOSITES PART B-ENGINEERING
(2019)
Article
Engineering, Multidisciplinary
Swagata Dutta, Raj Das, Debes Bhattacharyya
COMPOSITES PART B-ENGINEERING
(2019)
Article
Mechanics
Maedeh Amirpour, Simon Bickerton, Emilio Calius, Raj Das, Brian Mace
COMPOSITE STRUCTURES
(2019)
Proceedings Paper
Engineering, Electrical & Electronic
Guobiao Hu, Lihua Tang, Raj Das, Kean Aw
ACTIVE AND PASSIVE SMART STRUCTURES AND INTEGRATED SYSTEMS XII
(2018)
Article
Mechanics
Rawan Aqel, Patrick Severson, Rani Elhajjar
Summary: A novel core splice joint configuration for composite sandwich structures is studied and proposed to improve the strength and toughness. Experimental and numerical efforts show that this configuration can significantly increase the ultimate strength by 13% to 51% and the toughness by 2% to 35%.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Xianheng Wang, Cong Chen, Jinsong Zhang, Xinming Qiu
Summary: In this paper, a new form-finding method based on spatial elastica model (FMSE) is proposed for elastic gridshells. The method integrates the deformations of elastic rods into the overall deformation of the gridshell, and solves a set of transcendental equations using the quasi-Newton method to ensure the deformation satisfies the given boundary conditions. The method is validated through experiments and expected to have potential applications in the investigations of elastic gridshells.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Hao Huang, Zitong Guo, Zhongde Shan, Zheng Sun, Jianhua Liu, Dong Wang, Wang Wang, Jiale Liu, Chenchen Tan
Summary: The conventional evaluation of 3D braided composites' mechanical properties through numerical and experimental methodologies hinders material application due to the expenses, time constraints, and laborious efforts involved. This study establishes a multi-scale finite element model and a surrogate model for predicting the elastic properties of 3D4D rotary braided composites with voids. By optimizing a neural network model, the results are validated and provide valuable insights into the microstructure and properties of these composites.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Xinyu Li, Hao Zhang, Haiyang Yang, Junrong Luo, Zhongmin Xiao, Hongshuai Lei
Summary: Due to their excellent mechanical properties and design flexibility, fluted-core composite sandwich structures have gained significant attention in aerospace and rail transit applications. This study investigated the free-vibration characteristics and optimized design of composite fluted-core sandwich cylinders through theoretical models and experimental tests.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Chao Li, Chunzheng Duan, Xiaodong Tian, Chao Wang
Summary: A mechanistic model considering the bottom edge cutting effect and the anisotropic characteristics of the material is proposed in this paper to accurately predict cutting forces. The model was validated through a series of milling experiments and can be used to predict the cutting force of various parts of the cutter and any feed direction.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Camila Sanches Schimidt, Leopoldo Pisanelli Rodrigues de Oliveira, Carlos De Marqui Jr
Summary: This work investigates the vibro-acoustic performance of graded piezoelectric metamaterial plates. The study shows that piezoelectric metamaterial plates with reconfigurable properties can provide enhanced vibration and sound power attenuation.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Jun Ke, Li-jie Liu, Zhen-yu Wu, Zhong-ping Le, Luo Bao, Dong-wei Luo
Summary: Compared with other green natural fibers, ramie has higher mechanical properties and lower cost. In this study, ramie and glass fiber are made into composite circular tubes. The results show that the hybrid circular tube with ramie and glass fiber has improved torsional mechanical properties and reduced weight and cost. The failure mechanisms are affected by the loading direction and the content of each fiber.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Natalia Pingaro, Gabriele Milani
Summary: This paper proposes an enhanced analytical model for predicting the behavior of FRCM samples tested under standard tensile tests. The model takes into account the interaction between fibers and matrix through the interface, and assumes different material properties at different phases. By solving a second order linear differential equation, an analytical solution can be obtained. The model is validated with experimental data and shows good predictability.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Jialiang Fan, Anastasios P. Vassilopoulos, Veronique Michaud
Summary: This article investigates the effects of voids, joint geometry, and test conditions on the fracture performance of thick adhesive Double Cantilever Beam (DCB) joints. It concludes that grooved DCB joints with low void content tested at low displacement rates showed stable crack propagation without significant crack path deviation.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Auwalu I. Mohammed, Kaarthikeyan Raghupathy, Osvaldo De Victoria Garcia Baltazar, Lawson Onokpasah, Roger Carvalho, Anders Mogensen, Farzaneh Hassani, James Njuguna
Summary: This study investigates the performance of composite pressure vessels under damaged and undamaged conditions, providing insights into their reliability and residual strength capabilities. The results demonstrate that the damage profile and its effect on compressive strength are similar between damaged and non-damaged cylinders. When subjected to quasi-static compression, the polyethylene liner absorbs enough elastic strain energy to recover without plastic deformation. Additionally, quasi-static compression has little to no influence on the axial strength of the cylinders. The damage characterization reveals fiber breakage, delamination, local buckling, and brooming failure. This study has direct implications for the safety design tolerances, manufacturing strategies, and operational failure conditions of composite overwrapped pressure vessels (COPVs).
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Muhammad Irfan Shirazi, Samir Khatir, Djilali Boutchicha, Magd Abdel Wahab
Summary: Structural health monitoring is important to ensure the safety of components and structures. This study proposes a method using finite element models and 1D-CNN network to extract and classify vibration responses for crack detection. The results show that the proposed approach is effective in real-time damage detection.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Maryam Mirsalehi, Kiarash Kianpour, Sharif Shahbeyk, Mohammad Bakhshi
Summary: This study comprehensively investigates the one-way response of 3D-woven sandwich panels (3DWSPs) and their interfering parameters, providing interpretation of elastic and failure results, failure maps, and reliable theoretical models for linear elastic response and observed failure mechanisms.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Yiming Zhao, Zhonggang Wang, Zhigang Yang, Bin Qin
Summary: The paper proposes a Ritz and statistical energy analysis (Ritz SEA) hybrid method for calculating rectangular plate acoustic vibration coupling in the mid-frequency range. This method combines the fast convergence and ability to handle arbitrary boundary conditions of the Ritz method with the power flow equation of the statistical energy analysis method. The results show that this approach effectively filters out random fluctuations in mid-frequency domains while demonstrating exceptional stability and precision.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Joao Henrique Fonseca, Woojung Jang, Dosuck Han, Naksoo Kim, Hyungyil Lee
Summary: This study addresses the enhancement of an injection-molded fiber-reinforced plastic / metal hybrid automotive structure and its plastic injection molding process through the integration of the finite element method, artificial intelligence, and evolutionary search methods. Experimental validation of finite element models, the generation of a database through orthogonal array and Latin hypercube methods, and the training of artificial neural networks are conducted. The genetic optimization algorithm is then applied to identify optimal process parameters. The results show significant reduction in product warpage and manufacturing time while maintaining structural strength, contributing to the advancement of composite automotive structures with superior quality.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Alessandro Vescovini, Carina Xiaochen Li, Javier Paz Mendez, Bo Cheng Jin, Andrea Manes, Chiara Bisagni
Summary: This paper presents a study on six single-stringer specimens manufactured using the card-sliding technique with non-crimp fabrics and adopting a Double-Double (DD) stacking sequence. The specimens were tested under compression loading conditions to investigate post-buckling and failure in aerospace structures. Experimental results and numerical simulations were compared to analyze the behavior and failure modes of the specimens. The study found promising evidence of a viable solution to optimize aeronautical structures and enhance resistance to skin-stringer separation, particularly with the use of tapered flanges.
COMPOSITE STRUCTURES
(2024)
