Article
Engineering, Multidisciplinary
Tao Fu, Xing Wu, Zhengming Xiao, Zhaobo Chen, Jiaxing Li
Summary: This research focuses on acoustic radiation analysis of functionally graded material sandwich cylindrical shell structures reinforced by periodically eccentrically ring stiffeners. It considers two common types of FGM sandwich cylindrical shells and investigates the influences of properties, gradient index, sandwich type, ring stiffener size, external flow, and skin-core-skin ratios on the structural acoustic radiation performance. The results show that larger ring stiffener sizes have a greater influence on the acoustic radiation characteristics, while SPL curves increase with higher Mach numbers.
APPLIED MATHEMATICAL MODELLING
(2021)
Article
Engineering, Mechanical
Shashank Pandey, S. Pradyumna, Shakti Singh Gupta
Summary: The present study aims to develop a simple, accurate, and widely applicable finite element formulation for static and dynamic analyses of functionally graded sandwich skew shell panels. A layerwise displacement field is used for analysis, along with compatibility conditions at layer interfaces. Material properties of different configurations of the FGSS panels are estimated based on the rule of mixture.
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
(2021)
Article
Engineering, Aerospace
Xiaohui Ren, Senlin Zhang, Zhen Wu
Summary: This paper proposes a strategy to resist wrinkling deformation of sandwich structures, and validates the strategy through experiments and numerical analysis. The results indicate that the proposed strategy can effectively prevent wrinkling of sandwich plates without adding additional weight.
CHINESE JOURNAL OF AERONAUTICS
(2023)
Article
Construction & Building Technology
Chanachai Thongchom, Thira Jearsiripongkul, Nima Refahati, Peyman Roudgar Saffari, Pouyan Roodgar Saffari, Sayan Sirimontree, Suraparb Keawsawasvong
Summary: This study investigates the acousto-structural behavior of a sandwich cylindrical shell with hexagonal honeycomb structures in its core and functionally graded porous layers on its outer and inner surfaces. An analytical model, considering the effect of external flow, is used to derive the vibro-acoustic equations and calculate the sound transmission loss (STL) through the structure. Parameters such as Mach number, wave approach angle, structure's radius, volume fraction, index of functionally graded material (FGM), and honeycomb properties are varied to study the acoustic property in the frequency domain. The results show good agreement with previous findings.
Article
Engineering, Mechanical
Zhicheng Huang, Mengna Han, Xingguo Wang, Fulei Chu
Summary: The study aims to investigate the free vibration of functionally graded material sandwich plates with soft core layers under different boundary conditions and explore the influence of different parameter changes on the natural frequency of these plates.
JOURNAL OF VIBRATION ENGINEERING & TECHNOLOGIES
(2023)
Article
Mechanics
Baker Wael Abuteir, Djamel Boutagouga
Summary: This article examines the free vibration response of functionally graded cylindrical and spherical porous shells with temperature-dependent material properties. The effective material properties are determined using the rule of mixture with porosity phases. The equation of motion is derived based on a curved 8-node degenerated shell element formulation. The study focuses on two different material mixtures and investigates the influence of material constituents, power-law indexes, boundary conditions, radius to thickness ratio, porosity parameter, and temperature gradient on the natural frequencies.
Article
Acoustics
J. Abdolhoseyni, M. Danesh
Summary: This article investigates the sound transmission characteristics of a smart functionally graded cylindrical shell equipped with magneto-electro-elastic patches in the presence of a steady fluid flow. The study shows that applying electric and magnetic fields in the low frequency band can improve the sound transmission loss, making the magneto-electro-elastic patches suitable for active structural acoustic control.
JOURNAL OF SOUND AND VIBRATION
(2023)
Article
Engineering, Aerospace
Zhen Wu, Senlin Zhang, Yushan Xiao, Zhengliang Liu, Xiaohui Ren
Summary: In order to prevent the wrinkling behaviors of sandwich structures, this work attempts to improve stiffness of face sheets reinforced by carbon nanotubes (CNTs). An equivalent single-layer model is proposed to accurately analyze the wrinkling behaviors of sandwich structures. The influence of distributions of the CNTs through thickness on the buckling and wrinkling behaviors for the sandwich beams will be investigated in detail.
JOURNAL OF AEROSPACE ENGINEERING
(2023)
Article
Engineering, Mechanical
Lihua Wang, Yijia Liu, Yueting Zhou, Fan Yang
Summary: This work investigates the static and dynamic problems of thin functionally graded shells with in-plane material inhomogeneity, introducing a new meshfree radial basis collocation method for solution. Numerical simulations show that material inhomogeneity can shift dangerous positions in statics and affect natural frequencies and mode shapes in dynamics. These findings can be used for material property design in engineering applications.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Mechanics
Chang Tao, Ting Dai
Summary: This study investigates the postbuckling behavior of sandwich cylindrical shell panels with a graphene platelet reinforced functionally graded porous core under various loads for the first time. Utilizing a combination of NURBS-based isogeometric analysis and the modified arc-length method, the study demonstrates nonlinear load-deflection responses and captures different types of instability. Parametric studies show the influences of various factors on the load-deflection behavior of the panels.
COMPOSITE STRUCTURES
(2021)
Article
Mechanics
Hamza Chaabani, Said Mesmoudi, Lhoucine Boutahar, Khalid El Bikri
Summary: This work utilizes a numerical model called the High Order Continuation with Finite Element Method (HOC-FEM) to study the behavior of nonlinear geometric functionally graded material (FGM) sandwich plates under various nonuniform compressions. HOC-FEM is an efficient tool for analyzing nonlinear buckling and post-buckling phenomena.
Article
Engineering, Mechanical
Tao Fu, Xing Wu, Zhengming Xiao, Zhaobo Chen
Summary: This paper presents analytical studies on the dynamic instability of functionally graded material sandwich conical shell subjected to time dependent periodic parametric axial and lateral load. The governing equations are established by considering first order shear deformation shell theory, and the Mathieu-Hill equations describing the parametric stability are obtained by generalized differential quadrature method. The influences of sandwich distribution types, gradient indexes, skin-core-skin ratio and load forms on the dynamic stability of FGM sandwich conical shell have been investigated.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2021)
Article
Mechanics
Zhicheng Huang, Mengna Han, Xingguo Wang, Fulei Chu
Summary: This paper proposes a new analysis model for functionally graded material (FGM) porous sandwich plates with only four variables considering pores. It is applied to the nonlinear bending of two different types of FGM porous sandwich plates under mechanical loading and compares their bending characteristics. The governing equations are obtained using the principle of virtual work, and the Navier method is employed to solve the simply supported FGM porous sandwich plates. The obtained numerical results are compared with literature to validate the accuracy of the theory. The effects of various factors on the mechanical bending properties of FGM porous sandwich plates are studied in detail, providing valuable guidance for their design.
ARCHIVE OF APPLIED MECHANICS
(2023)
Article
Engineering, Mechanical
R. Rostami, M. Irani Rahaghi, M. Mohammadimehr
Summary: This paper investigates the vibration control of rotating sandwich cylindrical shell with functionally graded core and functionally graded magneto-electro-elastic (FGMEE) layers. The differential quadrature method is used to solve the equations of motion and study boundary conditions, while exploring the effects of various parameters on vibration control of the sandwich cylindrical shell.
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
(2021)
Article
Computer Science, Interdisciplinary Applications
Thanh T. Banh, Qui X. Lieu, Jaehong Lee, Joowon Kang, Dongkyu Lee
Summary: In this article, a density-driven unified multi-material topology optimization framework is proposed for functionally graded structures. The framework is applied to solid and plate-like structures with or without variable thickness using multiple in-plane bi-directional FG materials. The method employs a refined interpolation scheme and mixed interpolation assumption to tackle the properties and locking phenomenon encountered. Numerical examples are presented to evaluate the efficiency and reliability of the approach.
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
(2023)
Article
Materials Science, Multidisciplinary
Jose Luis Mantari, Jorge Yarasca, Marco Petrolo, Erasmo Carrera
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2020)
Article
Engineering, Civil
J. C. Monge, J. L. Mantari
ENGINEERING STRUCTURES
(2020)
Article
Mechanics
J. L. Mantari, F. G. Canales
INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS
(2020)
Article
Mechanics
J. C. Monge, J. L. Mantari
COMPOSITE STRUCTURES
(2020)
Article
Engineering, Manufacturing
Sergio Candiotti, Jose Luis Mantari, Carmen Elena Flores, Samuel Charca
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2020)
Article
Engineering, Civil
J. C. Monge, J. L. Mantari, R. A. Arciniega
ENGINEERING STRUCTURES
(2020)
Article
Biophysics
R. M. R. Panduro, Christian Monterrey, J. L. Mantari, Ruth Canahuire, Helard Alvarez, Mario Miranda, Ahmed Elsheikh
Summary: This paper presents a computational and experimental analysis of a glaucoma flat drainage device, verifying the accuracy of the simulation results and proposing a new type of eye pressure regulating device. The experimental results confirm the simulation results and provide a theoretical basis for future related studies.
JOURNAL OF BIOMECHANICS
(2021)
Review
Materials Science, Multidisciplinary
C. Gomez, A. Guardia, J. L. Mantari, A. M. Coronado, J. N. Reddy
Summary: The broad application of AI has brought about new approaches in the field of Materials Science and Engineering. Polymer Matrix Composites (PMC), after years of development, have evolved from a futuristic solution to a necessary innovative material.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2022)
Article
Mechanics
J. C. Monge, J. L. Mantari
Summary: A quasi-three-dimensional solution method is introduced for the bending analysis of simply supported orthotropic piezoelectric shallow shell panels subjected to thermal, mechanical and electrical potential. The mechanical governing equations are derived based on three-dimensional equilibrium relations and classical Maxwell's equations. The coupled partial differential equations are solved using Navier closed form solutions, and the through-the-thickness profile for electrical potential, temperature profile and displacements is obtained using the differential quadrature method.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Civil
J. C. Monge, J. L. Mantari
Summary: This paper presents an exact solution for the static analysis of magneto-electro-elastic simply supported shallow shell panels through deriving mechanical equations and electro-magnetic governing equations, solving them using different methods, and obtaining numerical results consistent with existing literature.
ENGINEERING STRUCTURES
(2021)
Article
Mechanics
J. C. Monge, J. L. Mantari, J. Yarasca, R. A. Arciniega
JOURNAL OF APPLIED AND COMPUTATIONAL MECHANICS
(2019)
Article
Mechanics
D. A. Ramirez, L. M. Cuba, J. L. Mantari, R. A. Arciniega
JOURNAL OF APPLIED AND COMPUTATIONAL MECHANICS
(2019)
Proceedings Paper
Engineering, Multidisciplinary
J. Monge, J. Mantari, J. Yarasca, R. Arciniega
2018 5TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS, MECHANICS AND STRUCTURAL ENGINEERING (AMMSE)
(2019)
Article
Mechanics
L. M. Cuba, R. A. Arciniega, J. L. Mantari
JOURNAL OF APPLIED AND COMPUTATIONAL MECHANICS
(2019)
Article
Engineering, Civil
Renbing An, Jiacong Yuan, Yi Pan, Duhang Yi
Summary: Traditional timber structures built on sloped land are more susceptible to seismic damage compared to structures built on flat land. The upper portion of the structure is found to be the weak point on sloped land, with potential issues such as tenon failure and column foot sliding.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Elyas Bayat, Federica Tubino
Summary: The current design guidelines for assessing floor vibration performance do not consider the influence of variability in the walking path on the dynamic response of floors. This study investigates the dynamic response of floors under a single pedestrian walking load, taking into account the randomness of the walking path and load. The effectiveness of the current guidelines in predicting floor response is critically assessed.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Gao Ma, Chunxu Hou, Hyeon-Jong Hwang, Linghui Chen, Zhenhao Zhang
Summary: Minimizing earthquake damage and improving repair efficiency are the main principles of resilient structures. This study proposed a repairable column with UHPC segments and replaceable energy dissipaters. The test results showed that the columns with UHPC segments and replaceable dissipaters exhibited high strength, deformation capacity, and energy dissipation.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Kartheek S. M. Sonti, Pavan Kumar Penumakala, Suresh Kumar Reddy Narala, S. Vincent
Summary: In this study, the compressive behavior of alumina hollow particles reinforced aluminum matrix syntactic foams (AMSF) was investigated using analytical, numerical, and experimental methods. The results showed that the FE solver ABAQUS could accurately predict the elastic and elastio-plastic behavior of AMSFs. The study also suggested that FE models have great potential in developing new materials and composites under compression loading.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Zheqi Peng, Xin Wang, Zhishen Wu
Summary: In this study, the statistical modeling of fiber-reinforced polymer (FRP) cables using the classic fiber bundle model is explored. The study considers important features of large-scale multi-tendon FRP cables, such as initial random slack and uneven tensile deformation among tendons. A parametric study and reliability analysis are conducted to predict the load-displacement relation and design thousand-meter-scale FRP cables. The study emphasizes the relation between the reliability index beta of the cable and the safety factor gamma of the FRP material.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Yanchao Shi, Shaozeng Liu, Ye Hu, Zhong-Xian Li, Yang Ding
Summary: This paper introduces a damage assessment method for reinforced concrete (RC) columns under blast loading, using modal parameter measurement as the evaluation index. The validity of the proposed method is validated through numerical and experimental analysis. The results show that this modal-based damage assessment method is applicable for non-destructive evaluation of blast-induced damage of RC columns.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Xiaolin Zou, Maosheng Gong, Zhanxuan Zuo, Qifang Liu
Summary: This paper proposes an efficient framework for assessing the collapse capacity of structures in earthquake engineering. The framework is based on an accurate equivalent single-degree-of-freedom (ESDOF) system, calibrated by a meta-heuristic optimization method. The proposed framework has been validated through case studies, confirming its accuracy and efficiency.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Jie Hu, Weiping Wen, Chenyu Zhang, Changhai Zhai, Shunshun Pei, Zhenghui Wang
Summary: A deep learning-based rapid peak seismic response prediction model is proposed for the most common two-story and three-span subway stations. The model predicts the peak seismic responses of subway stations using a data-driven approach and limited information, achieving good predictive performance and generalization ability, and demonstrating significantly higher computational efficiency compared to numerical simulation methods.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Jin Ho Lee, Jeong-Rae Cho
Summary: A simplified model is proposed to estimate the earthquake responses of a rectangular liquid storage tank considering the fluid-structure interactions. The complex three-dimensional structural behavior of the tank is represented by a combination of fundamental modes of a rectangular-ring-shaped frame structure and a cantilever beam. The system's governing equation is derived, and earthquake responses such as deflection, hydrodynamic pressure, base shear, and overturning moment are obtained from the solution.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
W. J. Lewis, J. M. Russell, T. Q. Li
Summary: The work discusses the key features and advantages of optimal 2-pin arches shaped by statistically prevalent load and constant axial stress. It extends the design space of symmetric arches to cover asymmetric forms and provides minimum values of constant stress for form-finding of such arches made of different materials. The analysis shows that constant stress arches exhibit minimal stress response and have potential implications for sustainability and durability of future infrastructure.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Wen-ming Zhang, Han-xu Zou, Jia-qi Chang, Tian-cheng Liu
Summary: Saddle position is crucial in the construction and control of suspension bridges. This study proposes an analytical approach to estimate the saddle positions in the completed bridge state and discusses the calculation under different definitions. The relationship between the saddle position and the tower's centerline is analyzed, along with the eccentric compression of the tower. The feasibility of the proposed method is verified through a real-life suspension bridge.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Shaise K. John, Alessio Cascardi, Yashida Nadir
Summary: This study experimentally investigated the use of TRM material for reinforcing concrete columns. The results showed that increasing the number of textile layers effectively increased the axial strength. Additionally, the choice of fiber type and hybrid textile configuration also had a significant impact on strength improvement. A new design model that considers the effects of both the confining matrix and textile was proposed.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Chandrashekhar Lakavath, S. Suriya Prakash
Summary: This study experimentally investigated the shear behavior of post-tensioned UHPFRC girders, considering factors such as prestress level, fiber volume fraction, and types of steel fibers. The results showed that increasing prestress and fiber dosage could enhance the ultimate load-carrying capacity of the girders, reduce crack angle, and increase shear cracking load.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Vahid Goodarzimehr, Siamak Talatahari, Saeed Shojaee, Amir H. Gandomi
Summary: In this paper, an Improved Marine Predators Algorithm (IMPA) is proposed for size and shape optimization of truss structures subject to natural frequency constraints. The results indicate that IMPA performs better in solving these nonlinear structural optimization problems compared to other state-of-the-art algorithms.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Chun-Xu Qu, Jin-Zhao Jiang, Ting-Hua Yi, Hong-Nan Li
Summary: In this paper, a computer vision-based method is proposed to monitor the deformation and displacement of building structures by obtaining 3D coordinates of surface feature points. The method can acquire a large number of 3D coordinates in a noncontact form, improve the flexibility and density of measurement point layout, and is simple and cost-effective to operate.
ENGINEERING STRUCTURES
(2024)