Article
Engineering, Mechanical
Ahmad Mamandi
Summary: This study analyzed bending deflection and stress of a thin skew plate made of functionally graded material under various boundary conditions and loads using mathematical methods. The effects of different support conditions on the results were investigated.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2022)
Article
Mathematics
Fatima Zohra Zaoui, Djamel Ouinas, Belkacem Achour, Mabrouk Touahmia, Mustapha Boukendakdji, Enamur R. R. Latifee, Ahmed A. Alawi Al-Naghi, Jaime Aurelio Vina Olay
Summary: This paper presents the flexural analysis of functionally graded plates resting on elastic foundations using new two-dimensional and quasi-three-dimensional higher order shear deformation theories. The analysis considers the influence of material composition, geometric parameters, stretching effect, and foundation parameters on the deflection, axial displacements, and stresses. The results show that the proposed theory accurately predicts the displacements and stresses.
Article
Construction & Building Technology
Malek Hadji, Abdelhakim Bouhadra, Belgacem Mamen, Abderahmane Menasria, Abdelmoumen Anis Bousahla, Fouad Bourada, Mohamed Bourada, Kouider Halim Benrahou, Abdelouahed Tounsi
Summary: This study investigates the elastic bending of imperfect functionally graded sandwich plates (FGSPs) subjected to sinusoidal loads on the Winkler-Pasternak foundation. The quasi-3D sinusoidal shear deformation model is used, which condenses the unknowns to five using integral-undefined terms without correction shear factor. The middle layer is assumed to be homogeneous and isotropic, while the top and bottom face sheets of the graded porous sandwich plate (FGSP) vary regularly and continuously in the thickness direction according to the trigonometric volume fraction's model. The impact of material index, porosity, side-to-thickness ratio, aspect ratio, and the Winkler-Pasternak foundation on the displacements, axial and shear stresses of the sandwich structure is examined.
STEEL AND COMPOSITE STRUCTURES
(2023)
Article
Construction & Building Technology
Fatima Z. Zaoui, Djamel Ouinas, Abdelouahed Tounsi, Belkacem Achour, Jaime A. Vina Olay, Tayyab A. Butt
Summary: A new two-dimensional and quasi three-dimensional higher order shear deformation theory is proposed in this research to solve the bending problem of functionally graded plates on an elastic foundation. The displacement field of the suggested theories considers a parabolic transverse shear deformation shape function and satisfies shear stress free boundary conditions on the plate surfaces. The effects of material composition, geometrical parameters, stretching effect, and foundation parameters on deflection, axial displacements, and stresses are discussed in detail.
STEEL AND COMPOSITE STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Pawan Kumar, S. P. Harsha
Summary: This paper analyzes the static bending and deflection of the porous core functionally graded piezoelectric sandwich plate under different boundary conditions. The study shows that the distribution of porosity in the core part of the sandwich plate significantly affects the stiffness and performance of the plate.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Instruments & Instrumentation
Muhammad Asif, Rab Nawaz, Rahmatullah Ibrahim Nuruddeen
Summary: This investigation focuses on the dispersion of an inhomogeneous sandwich plate with imperfect interfaces. The overall cut-off frequency and the exact dispersion relation were computed, and the effects of various parameters on the lowest dispersion curve were studied. The study sheds light on the behavior of elastic waves in multilayered structures and can be used to improve the layout of three-layered structures.
SMART MATERIALS AND STRUCTURES
(2023)
Article
Construction & Building Technology
Moustafa Guellil, Hayat Saidi, Fouad Bourada, Abdelmoumen Anis Bousahla, Abdelouahed Tounsi, Mesfer Mohammad Al-Zahrani, Muzamal Hussain, S. R. Mahmoud
Summary: This paper introduces a higher order shear deformation theory for bending analysis of functionally graded plates, considering the effects of porosities, parameters, and boundary conditions on deflections and stresses.
STEEL AND COMPOSITE STRUCTURES
(2021)
Article
Construction & Building Technology
Samira Hassiba Tagrara, Mohamed Mehdi Hamri, Mahmoud Mohamed Selim Saleh, Mofareh Hassan Ghazwani, Abdelbaki Chikh, Abdelmoumen Anis Bousahla, Abdelhakim Kaci, Fouad Bourada, Abdelouahed Tounsi
Summary: This work presents a simple four-unknown refined integral plate theory for mechanical and thermal buckling behaviors of functionally graded (FG) plates resting on Visco-Pasternak foundations. The proposed theory uses a new displacement field which includes indeterminate integral variables and contains only four unknowns, eliminating the use of shear correction factors. Governing equations are deduced from the principle of minimum total potential energy and a Navier type analytical solution is adopted for simply supported FG plates. The accuracy of the model is demonstrated by comparing the computed results with those available in the literature, showing the impact of material index, elastic foundation type, and damping coefficient on the mechanical and thermal buckling behaviors of FG plates.
STEEL AND COMPOSITE STRUCTURES
(2023)
Article
Engineering, Civil
L. X. Peng, X. C. He, G. X. Mei, Y. J. Shen
Summary: This paper proposes a meshless method based on the first-order shear deformation theory (FSDT) and moving least-squares approximation (MLS) for the dynamic response analysis of a stiffened plate resting on a viscoelastic Pasternak foundation. The Newmark method is employed to solve the governing equation. Numerical examples with different boundary conditions, foundation coefficients, pulse loads, damping ratios, and arrangement of stiffeners are calculated. The results show that the proposed method is effective and accurate in analyzing the dynamic properties of stiffened plate resting on a viscoelastic Pasternak foundation.
INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
(2023)
Article
Engineering, Civil
V. Kumar, S. J. Singh, V. H. Saran, S. P. Harsha
Summary: This work investigates the buckling response of a porous plate made of functionally graded materials. It considers a tapered FGM plate under uniaxial and biaxial loading with various boundary conditions. The effects of Pasternak foundation and different porosity patterns on the buckling response are studied. The study utilizes the first order-shear deformation theory and the Galerkin's-Vlasov method to derive the effective equations of motion for buckling analysis.
Article
Engineering, Mechanical
A. Ghorbanpour Arani, S. A. Jamali
Summary: This research investigates the vibration analysis of a cylindrically curved sandwich plate rested on Winkler-Pasternak foundation, deriving constitutive equations for different layers and proposing an analytical approach to solve the coupled equations. It is observed that increasing the volume fraction of carbon nanotubes in face sheets enhances the stability of the electro-rheological sandwich plate, which can be utilized in designing smart structures in various fields such as military, aviation, marine, and automotive industries.
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
(2021)
Article
Mechanics
L. X. Peng, S. Y. Chen, D. Y. Wei, W. Chen, Y. S. Zhang
Summary: This paper analyzes the static and free vibration problems of stiffened functionally graded plates resting on Pasternak foundation. The displacement transformation relationship between stiffeners and FGM plates is obtained, and the meshless governing equations are derived. Numerical results demonstrate the convergence and accuracy of the proposed method, and the effects of parameters on the vibration behavior are discussed.
COMPOSITE STRUCTURES
(2022)
Article
Engineering, Civil
Habib Hebali, Abdelbaki Chikh, Abdelmoumen Anis Bousahla, Fouad Bourada, Abdeldjebbar Tounsi, Kouider Halim Benrahou, Muzamal Hussain, Abdelouahed Tounsi
Summary: This study investigates the bending and dynamic behaviors of advanced composite plates resting on variable visco-Pasternak foundations using a simple shear deformation integral plate model. The results show that the material index, elastic foundation type, and damping coefficient of the foundation have significant impacts on the bending and dynamic responses of advanced composite plates.
GEOMECHANICS AND ENGINEERING
(2022)
Article
Construction & Building Technology
Jian Wu, Jinpeng Zhang, Xue Li
Summary: In this paper, the bending behavior of rectangular plates with stepped thickness resting on an elastic half-space foundation is investigated through an analytic method. The stepped rectangular plate is divided into upper and lower plates, and the Fourier series is used to obtain the analytical solution of the deflection of the plate and the interaction force between the plate and foundation. The influence of the elastic modulus of the plate, plate theory, and the dimension of the plate on the deflection of the stepped rectangular plate is also discussed.
Article
Materials Science, Multidisciplinary
Ashraf M. Zenkour, Hela D. El-Shahrany
Summary: This study investigates the controlled motion of viscoelastic/fiber-reinforced/magnetostrictive/sandwich plates supported by visco-Pasternak foundations. The authors derive the governing dynamic system using Hamilton's principle and utilize a feedback control system to control the structural vibration. Numerical outcomes indicate that increasing the thickness ratio of the viscoelastic layer to the magnetostrictive layer improves system vibration control.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2022)
Article
Engineering, Multidisciplinary
Amin Joodaky, Iman Joodaky, Mohammad Hedayati, Reza Masoomi, Ehsan Borzabadi Farahani
COMPOSITES PART B-ENGINEERING
(2013)
Article
Mechanics
M. M. Najafizadeh, M. Malmorad, A. Sharifi, A. Joodaky
JOURNAL OF MECHANICS
(2013)
Article
Mechanics
Iman Joodaky, Amin Joodaky
Article
Engineering, Manufacturing
Amin Joodaky, Gregory S. Batt, James M. Gibert
PACKAGING TECHNOLOGY AND SCIENCE
(2020)
Article
Engineering, Manufacturing
Gregory J. Cocchiola, Amin Joodaky, Gregory S. Batt, James M. Gibert
PACKAGING TECHNOLOGY AND SCIENCE
(2020)
Article
Engineering, Mechanical
Rosaria Del Toro, Maria Laura De Bellis, Marcello Vasta, Andrea Bacigalupo
Summary: This article presents a multifield asymptotic homogenization scheme for analyzing Bloch wave propagation in non-standard thermoelastic periodic materials. The proposed method derives microscale field equations, solves recursive differential problems within the unit cell, establishes a down-scaling relation, and obtains average field equations. The effectiveness of this approach is validated by comparing dispersion curves with those from the Floquet-Bloch theory.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Yue Bao, Zhengcheng Yao, Yue Zhang, Xueman Hu, Xiandong Liu, Yingchun Shan, Tian He
Summary: This paper proposes a novel triple-gradient phononic acoustic black hole (ABH) beam that strategically manipulates multiple gradients to enhance its performance. The study reveals that the ABH effect is not solely brought about by the thickness gradient, but also extends to the power-law gradients in density and modulus. The synergistic development of three different gradient effects leads to more pronounced and broader bandgaps in PCs.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Matthias Ryser, Jason Steffen, Bekim Berisha, Markus Bambach
Summary: This study investigates the feasibility of replacing complex experiments with multiple simpler ones to determine the anisotropic yielding behavior of sheet metal. The results show that parameter identifiability and accuracy can be achieved by combining multiple specimen geometries and orientations, enhancing the understanding of the yield behavior.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Wenjun Li, Pengfei Zhang, Siyong Yang, Shenling Cai, Kai Feng
Summary: This study presents a novel two-dimensional non-contact platform based on Near-field Acoustic Levitation (NFAL), which can realize both one-dimensional and two-dimensional transportation. Numerical and experimental results prove the feasibility and ease of this method.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Shuo Liu, Lu Che, Guodong Fang, Jun Liang
Summary: This study presents a novel lamina conjugated bond-based peridynamic (BB-PD) model that overcomes the limitations of material properties and is applicable to composite laminates with different stacking sequences. The accuracy and applicability of the model are validated through simulations of elastic deformation and progressive damage behavior, providing an explanation of the damage modes and failure mechanisms of laminated composite materials subjected to uniaxial loading.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Omar El-Khatib, S. Kumar, Wesley J. Cantwell, Andreas Schiffer
Summary: Sandwich-structured honeycombs (SSHCs) are hierarchical structures with enhanced mass-specific properties. A model capable of predicting the elastic properties of hexagonal SSHCs is presented, showing superior in-plane elastic and shear moduli compared to traditional honeycombs, while the out-of-plane shear moduli are reduced.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Zhi-Jian Li, Hong-Liang Dai, Yuan Yao, Jing-Ling Liu
Summary: This paper proposes a process-performance prediction model for estimating the yield strength and ultimate tensile strength of metallic parts fabricated by powder bed fusion additive manufacturing. The effect of main process variables on the mechanical performance of printed metallic parts is analyzed and the results can serve as a guideline for improvement. The accuracy of the proposed model is validated by comparison with literature.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Saman A. Bapir, Kawa M. A. Manmi, Rostam K. Saeed, Abdolrahman Dadvand
Summary: This study numerically investigates the behavior of an ultrasonically driven gas bubble between two parallel rigid circular walls with a cylindrical micro-indentation in one wall. The primary objective is to determine the conditions that facilitate the removal of particulate contamination from the indentation using the bubble jet. The study found that the bubble jet can effectively remove contamination from the indentation for certain ranges of indentation diameter, but becomes less effective for larger indentation diameters.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
E. Polyzos, E. Vereroudakis, S. Malefaki, D. Vlassopoulos, D. Van Hemelrijck, L. Pyl
Summary: This research investigates the elastic and damage characteristics of individual composite beads used in 3D printed composites. A new analytical probabilistic progressive damage model (PPDM) is introduced to capture the elastic and damage attributes of these beads. Experimental results show strong agreement with the model in terms of elastic behavior and ultimate strength and strain.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)