Article
Mechanics
Damjan Banic, Goran Turkalj, Domagoj Lanc
Summary: This paper presents a shear deformable beam model for the nonlinear stability analysis of composite beam-type structures that considers the effects of restrained warping, large rotation, and shear deformation. The incremental equilibrium equations are derived using an updated Lagrangian formulation and Hooke's law is assumed to be valid. The accuracy and reliability of the proposed numerical model are verified on benchmark examples, showing that it is a shear locking-free model.
COMPOSITE STRUCTURES
(2023)
Article
Mechanics
Chia -Wen Hsu, Chyanbin Hwu
Summary: In this study, the Green's function of a thick laminated composite plate, which can have unsymmetrical properties and consider the coupling of in-plane stretching and out-of-plane bending deformations, is derived for the first time. The governing equations based on the shear deformation plate theory are reorganized into ordinary differential equations through the plane wave decomposition method. The Green's functions are expressed in terms of matrix exponential and can be evaluated explicitly through eigen-decomposition.
COMPOSITE STRUCTURES
(2023)
Article
Engineering, Civil
Dhaneshwar Prasad Sahu, Jagesh Kumar Prusty, Sukesh Chandra Mohanty
Summary: This study conducted the frequency and deflection response analysis of basalt, soy, flax, and hybrid pineapple and flax hybrid laminated skew plates. The elastic properties of the bio-composite laminated structure were determined through uniaxial tension tests. The proposed model was verified to be accurate and the results showed that the natural frequencies decrease with an increasing aspect ratio of skew plates, while the skew angles help to increase the natural frequencies and reduce the central deflections of the laminated plates.
INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
(2023)
Article
Mechanics
Vu Hoai Nam, Dang Thuy Dong, Cao Van Doan, Nguyen Thi Phuong
Summary: This paper presents a new improved smeared stiffener technique for higher-order shear deformable anisotropic stiffeners. The thermo-electro-mechanical nonlinear buckling response of functionally graded graphene reinforcement composite laminated plates is analyzed, and numerical investigations confirm the significant influences of various factors on the buckling behavior.
INTERNATIONAL JOURNAL OF APPLIED MECHANICS
(2022)
Article
Engineering, Multidisciplinary
Jie Zhi, Karh Heng Leong, Kirk Ming Yeoh, Tong -Earn Tay, Vincent Beng Chye Tan
Summary: A multiscale method is proposed in this study to model thin-walled fiber reinforced composite laminates using Mindlin-Reissner shell theory and Direct FE2. The method employs a first-order homogenization framework to handle the scale transitions and considers in-plane and through-thickness periodicity. It avoids the upscaling of macroscopic stresses and tangents in the conventional nested FE2 scheme, making it useful for modeling damage propagation in composite structures.
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Mohsen Nasr Esfahani, Mohammad Hashemian, Farshid Aghadavoudi
Summary: This paper investigates the free vibration of a sandwich truncated conical shell with a saturated functionally graded porous core and two isotropic face sheets. The study analyzes the influence of various parameters on the shell's natural frequencies and reveals that porosity distribution, thickness, and compressibility of the pore fluid can all affect the natural frequencies to some extent.
SCIENTIFIC REPORTS
(2022)
Article
Mechanics
Babu Ranjan Thakur, Surendra Verma, B. N. Singh, D. K. Maiti
Summary: This paper investigates the effect of hygrothermal environment on dynamic analysis of folded laminated composite plates using nonpolynomial shear deformation theory and computationally efficient finite element method. Various analyses such as natural frequency, transient behavior, and steady-state response are conducted under different conditions, with displacement and stress plots provided. The model is compared and validated with existing literature and ANSYS APDL solutions, showing better performance for NPSDT.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Mechanical
Alireza Beheshti, Reza Ansari
Summary: This investigation focuses on the development of a quadrilateral shell element for deformation analysis of composite laminates. A higher-order shell model with 12 parameters and three-dimensional stress state is adopted. The stiffness matrix and load vector for the four-node shell element are derived using the principle of virtual work. Several benchmarks are solved and compared to literature solutions to verify the performance of the developed higher-order shell element for laminated composites.
INTERNATIONAL JOURNAL OF MECHANICS AND MATERIALS IN DESIGN
(2023)
Article
Engineering, Mechanical
M. C. Ray
Summary: This paper derives benchmark three-dimensional exact solutions for the static analysis of rectangular antisymmetric angle ply plates, showing that these solutions can be used for numerical results for any fiber orientation angle, but not for other angle-ply plates. It is also found that the first order shear deformation theory (FSDT) can be efficiently used for thin and two layered thick antisymmetric angle-ply plates, as compared to exact solutions.
INTERNATIONAL JOURNAL OF MECHANICS AND MATERIALS IN DESIGN
(2021)
Article
Engineering, Aerospace
Nguyen Thi Phuong, Dang Thuy Dong, Cao Van Doan, Vu Hoai Nam
Summary: This paper analytically examines the nonlinear postbuckling analysis of functionally graded graphene reinforced composite plates considering the nonlinear effect of an elastic foundation under external pressure and axial compression load in a thermal environment. The study applies the higher-order shear deformation plate theory and Galerkin's method to obtain explicit expressions for critical buckling loads and postbuckling load-deflection curves. The numerical results demonstrate the influences of nonlinear elastic foundation, temperature, laminated stiffeners, material, and geometrical features on the nonlinear responses of the plates.
AEROSPACE SCIENCE AND TECHNOLOGY
(2022)
Review
Materials Science, Composites
Ashes Maji, Prashanta Kr Mahato
Summary: This review focuses on the development and applications of shear deformation laminated composite plate theories. It discusses various theoretical models, including equivalent single-layer laminate theories and layerwise laminate theories. In addition, it reviews other related theories such as 3D elasticity solutions theory, mixed plate theories, and smart composites.
JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS
(2022)
Article
Mechanics
S. Chandra, K. Sepahvand, V. A. Matsagar, S. Marburg
Summary: Composite materials are increasingly used in aerospace and automotive sectors due to their high stiffness and lightweight characteristics compared to conventional structural materials. Stiffened laminated composite plates are preferred for important structural components to ensure high load carrying capacity and prevent thermal buckling. Research shows that the dynamic response of stiffened laminated composite plates decreases with the addition of stiffeners and further decreases with increasing stiffener depth in thermal environments.
COMPOSITE STRUCTURES
(2022)
Article
Engineering, Mechanical
Philip Schreiber, Christian Mittelstedt
Summary: The aim of this study is to improve the stability analysis method of unsymmetric laminated structures. By using discrete plate theory, the problem is simplified to a single plate. Explicit solutions for the buckling load are provided for unsymmetric laminates with different boundary conditions, and the results are compared with finite element analysis, showing good agreement.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Engineering, Civil
Sandipan Nath Thakur, Chaitali Ray
Summary: This paper investigates the response behavior and performance of moderately thick hyperbolic paraboloidal laminated shells, validating the accuracy of the finite element model. Extensive parametric studies on static and free vibration analyses were conducted to study the shell's performance under different geometric configurations.
Article
Mechanics
Zanhang He, Jianghong Xue, Sishi Yao, Yongfu Wu, Fei Xia
Summary: A modified first order shear deformation theory is proposed for laminated micro-nano plates with couple stress components involved, based on mechanics of composite materials and Koiter's theory. Governing equations with size-dependent effect are derived and applied to investigate the buckling and free vibration of laminated micro-nano plates. The proposed theory is validated and shown to be efficient and accurate through comparisons with existing models and ABAQUS analysis.
COMPOSITE STRUCTURES
(2021)
Article
Acoustics
S. A. Hosseini Kordkheili, S. H. Momeni Massouleh, S. Hajirezayi, H. Bahai
JOURNAL OF SOUND AND VIBRATION
(2018)
Article
Engineering, Civil
Z. Soltani, S. A. Hosseini Kordkheili, G. Kress
ENGINEERING STRUCTURES
(2019)
Article
Engineering, Mechanical
Omid Fakharian, Hamed Salmani, Seyed Ali Hosseini Kordkheili
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY
(2019)
Article
Physics, Multidisciplinary
S. H. Momeni Massouleh, S. A. Hosseini Kordkheili
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2019)
Article
Engineering, Ocean
Pooriya Shahali, Hassan Haddadpour, Seyed Ali Hosseini Kordkheili
APPLIED OCEAN RESEARCH
(2020)
Article
Mechanics
S. A. Hosseini Kordkheili, R. Khorasani
COMPOSITE STRUCTURES
(2019)
Article
Materials Science, Composites
M. Davoodi Moallem, M. Barzegar, A. Abedian, S. A. Hosseini Kordkheili
Summary: A multi-scale finite element algorithm is proposed to simulate crack growth of repaired plates under fatigue load, considering the effects of composite micro-scale properties. The study investigates the influences of different fiber volume fractions, number of layers, and fiber orientation on the fatigue responses of adhesively bonded patches, revealing significant enhancements in fatigue life. Experimentally, a 133% enhancement in fatigue life was observed with varying fiber volume fraction, along with 287% and 172% increments in the number of cycles for different numbers of layers and fiber orientations, respectively.
JOURNAL OF REINFORCED PLASTICS AND COMPOSITES
(2021)
Article
Mechanics
Zahra Soltani, Seyed Ali Hosseini Kordkheili
Summary: This study aims to calculate interlaminar stress distribution in multilayered composite shell structures using a novel nonlinear layer-wise shell finite element formulation. The results are in good agreement with existing literature and simulations conducted with the commercial finite element software Ansys.
COMPOSITE STRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
M. M. Ashrafian, S. A. Hosseini Kordkheili
Summary: A plastic temperature-dependent constitutive model is developed for pure aluminum diaphragms, showing better accuracy in capturing material behavior compared to the Johnson-Cook model. Experimental and numerical simulations confirm the accuracy of the new model in capturing hot bi-axial deformation of pure aluminum.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Multidisciplinary
S. A. Hosseini Kordkheili, M. Karimian, H. R. Jafari
Summary: This paper investigates the failure analysis of conic shell structures and Carbon/Phenolic composites, measuring the properties of the composites, proposing a specific failure criterion, and implementing it into the ABAQUS software. The model is evaluated through comparisons with other failure criteria and experiments.
INTERNATIONAL JOURNAL OF DAMAGE MECHANICS
(2021)
Article
Engineering, Aerospace
Mohammad Mahdi Ashrafian, Seyed Ali Hosseini Kordkheili
Summary: A phenomenological constitutive modeling study was conducted on Ti-6Al-4V at temperatures between 923 and 1023 K under quasi-static rates. A viscoplastic temperature-dependent constitutive model was developed to accurately predict the material's behavior, showing improved fidelity compared to the Johnson-Cook model.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART G-JOURNAL OF AEROSPACE ENGINEERING
(2021)
Article
Engineering, Mechanical
R. Khorasani, S. A. Hosseini Kordkheili, A. Razov, N. Resnina
Summary: This study introduces a numerical method for investigating the appropriate arrangement of visco-pseudo-elastic dampers applicable to shell and plate structures under large deformation. The study developed a constitutive model for shape memory alloys based on experimental tests, and presented a finite element formulation for accurate modeling of the damping behavior. Results demonstrate the potential for quick vibration mitigation using these dampers.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Acoustics
S. H. Momeni Massouleh, S. A. Hosseini Kordkheili, H. Mohammad Navazi, H. Bahai
JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME
(2019)
Article
Engineering, Civil
Seyed Ali Hosseini Kordkheili, Taha Mousavi, Hamid Bahai
STRUCTURAL ENGINEERING AND MECHANICS
(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)