Article
Engineering, Civil
Yuan Chen, Kunkun Fu, Bingnong Jiang
Summary: This study develops a finite element analysis (FEA) model for accounting localised progressive failure of carbon fibre reinforced polymer (CFRP) composite sandwich panels when subjected to in-plane compression. Good agreements between the FEA and experimental results were observed for all three types of crushing scenarios. The study sets a foundation for the future design and development of protective structures or equipment with high energy-absorption capabilities.
THIN-WALLED STRUCTURES
(2023)
Article
Engineering, Mechanical
Karthik Ram Ramakrishnan, Sandra Guerard, Zhifang Zhang, Krishna Shankar, Philippe Viot
Summary: Sandwich composites with fiber-reinforced plastic facesheets and foam core are a major class of lightweight structural materials, but impact damage can severely reduce structural integrity. This study evaluated the impact behavior of sandwich panels with nano-reinforced epoxy matrix through numerical simulations and experimental tests, demonstrating accurate modeling and capturing impact damage behavior with nano-reinforcements.
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
(2021)
Article
Engineering, Mechanical
B. Aryal, E. Morozov, K. Shankar
Summary: This paper investigates the effects of ballistic impact damage on the mechanical behavior of composite honeycomb sandwich panels through ballistic tests and experimental analysis, evaluating the damage modes and extent using various methods. Structural performance of intact and damaged panels is studied through in-plane compression tests and numerical analysis, assessing the reduction in load-carrying ability caused by ballistic damage and comparing it with numerical simulations.
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
(2021)
Article
Mechanics
Xin Pan, Liming Chen, Jianqiang Deng, Wanqi Zhao, Shuai Jin, Bing Du, Yong Chen, Weiguo Li, Tao Liu
Summary: This study investigates the impact response and damage mechanisms of intersected corrugated sandwich panels (ICSPs) and regular corrugated sandwich panels (RCSPs) under different impact conditions. The results show that ICSPs have better integrity and higher energy absorption capacity compared to RCSPs, indicating their superior impact resistance.
COMPOSITE STRUCTURES
(2023)
Article
Engineering, Civil
Yu Bian, Feng Xiong, Ye Liu, Qi Ge
Summary: This study developed novel ECC-RC composite sandwich panels (ECSPs) by reinforcing the face layer of precast concrete sandwich panels (PCSPs) with engineered cementitious composite (ECC) to address their shortcomings. The flexural performance of ECSP was evaluated through tests and finite element analysis. The incorporation of ECC substantially improved the flexural performance of PCSP, presenting a long load-hardening phase and excellent durability. Based on the results, a formula and calculation model were proposed to estimate the flexural carrying capacity of ECSP.
ENGINEERING STRUCTURES
(2023)
Article
Mechanics
Xinyu Li, Haiyang Yang, Hao Zhang, Lianhua Yin, Zhong Zhang, Hongshuai Lei, Daining Fang
Summary: Analytical models were proposed to investigate the failure mechanisms of fluted-core sandwich composite panels, and failure mode maps were constructed. Experimental and simulation results verified the accuracy of the models, and the effects of geometric variables on load-bearing capacity and failure modes were explored. The findings are significant for lightweight and load-carrying applications.
COMPOSITE STRUCTURES
(2023)
Article
Construction & Building Technology
I. R. Upasiri, K. M. C. Konthesigha, S. M. A. Nanayakkara, K. Poologanathan, P. Gatheeshgar, D. Nuwanthika
Summary: Composite Sandwich Panels (CSP) with AAC core showed improved insulation fire rating compared to CSP with FC core, with the best performance seen in FC CSP with a density of 1000 kg/m(3). AAC CSP also outperformed FC CSP with a density of 650 kg/m(3). Both materials can be utilized for composite sandwich panels with better thermal and mechanical performance.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Mechanics
Honglei Xie, Hai Fang, Xiaolong Li, Li Wan, Peng Wu, Yi Yu
Summary: This paper presents an experimental investigation on impact damage detection of Paulownia wood core sandwich structures using infrared thermography (IRT). The study shows that damage information can be obtained from temperature distribution images acquired by IRT, and discusses the effects of different factors on the induced damage in the structures.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Civil
Majid M. A. Kadhim, Akram Jawdhari, Amir Fam
Summary: This study develops design equations for thermal bowing and composite degree in concrete sandwich panels (CSPs) based on a comprehensive parametric study. The equations provide better predictions for deformation and composite degree, improving the design efficiency and economic feasibility of CSPs.
ENGINEERING STRUCTURES
(2023)
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
Yanfei Yang, Tianpeng Ling, Yanchen Liu, Sainan Xue
Summary: This study identified that by placing proper materials in the front sensitive region of a hybrid ballistic soft armor panel, a synergistic effect can be achieved, improving the energy absorption of the whole panel.
COMPOSITE STRUCTURES
(2021)
Article
Mechanics
Stefano Signetti, Seunghwa Ryu, Nicola M. Pugno
Summary: An analytical model is developed to study the ballistic behavior of multilayer composite armors subjected to high-velocity impact. The model considers the effect of thickness compaction and curing pressure on impact toughness, and is validated through experiments and simulations. The study finds that graded multilayer configurations can enhance the toughness of armor, and have potential applications in the design and optimization of shielding structures.
COMPOSITE STRUCTURES
(2022)
Article
Materials Science, Composites
A. N. Shankar, S. M. Murali Krishna, Rohinikumar Chebolu, Ajay K. S. Singholi, Rasmeet Singh, S. Rajeshkumar
Summary: This study investigates the dynamic responses of carbon nanotubes (CNT) reinforced composite sandwich shells with multi magnetorheological elastomer (MRE) core, showing a significant influence on the natural frequencies. The study also analyzes the effects of several parameters on the natural frequencies, including the content of CNT, magnetic fields, and support conditions.
POLYMER COMPOSITES
(2022)
Article
Engineering, Mechanical
S. Jafari, A. Alavi Nia
Summary: This study investigates the improvement of Florence's analytical equation for ceramic-metal targets and explores the development of this equation for ceramic-polyuria-metal targets. The results are validated by comparing with experimental, analytical, and numerical data.
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2022)
Article
Engineering, Civil
Ankita Gupta, S. Pradyumna
Summary: In this study, the nonlinear free and forced vibration analyses of variable stiffness composite laminated (VSCL) and sandwich shell panels with curvilinear fibers were conducted using a higher-order theory. The structural model considered a third-order shear deformation theory, and geometric nonlinearity was included through von Karman nonlinear strain-displacement relations. The results were compared with existing exact and analytical solutions to validate the model.
THIN-WALLED STRUCTURES
(2022)
Article
Thermodynamics
Mojtaba Haghighi-Yazdi, Pearl Lee-Sullivan, Ali Moallemi
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2017)
Article
Mechanics
Mojtaba Haghighi-Yazdi, Pearl Lee-Sullivan
Article
Polymer Science
Mojtaba Haghighi-Yazdi, Pearl Lee-Sullivan
JOURNAL OF APPLIED POLYMER SCIENCE
(2015)
Article
Chemistry, Multidisciplinary
Mohsen Mazrouei, Hossein Jokar, Majid Baniassadi, Karen Abrinia, Mojtaba Haghighi-Yazdi
JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE
(2014)
Article
Mechanics
Mojtaba Haghighi-Yazdi, Pearl Lee-Sullivan
MECHANICS OF TIME-DEPENDENT MATERIALS
(2013)
Article
Polymer Science
Mojtaba Haghighi-Yazdi, Jacky K. Y. Tang, Pearl Lee-Sullivan
POLYMER DEGRADATION AND STABILITY
(2011)
Article
Materials Science, Composites
Soheil Khomejani-Farahani, Mojtaba Haghighi-Yazdi, Majid Safarabadi
POLYMER COMPOSITES
(2020)
Article
Engineering, Mechanical
M. Safarabadi, M. Haghighi-Yazdi, M. A. Sorkhi, A. Yousefi
Summary: In this study, the buckling behavior of Nomex honeycomb core/glass-epoxy face sheet sandwich panel with both bare and foam-filled honeycomb core is investigated numerically and experimentally, taking into account the viscoelastic properties of the sandwich panel. The results show that foam filling significantly enhances the mechanical properties of the sandwich panel.
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
(2021)
Article
Engineering, Mechanical
Milad Hosseinkhani, Hamed Ghavami, Mojtaba Haghighi-Yazdi, Mahmoud Mosavi Mashhadi, Majid Safarabadi
Summary: This study investigates the effect of viscoelastic properties in foam-filled sandwich panels under low-velocity impact loading. A finite element (FE) model using ABAQUS software is developed to study the impact of considering and ignoring time-dependent behavior of composite facesheets and foam core. Material constitutive equations, damage characteristics, and failure modes are defined using a FORTRAN user-subroutine VUMAT. Experimental tests are conducted to characterize the material behavior of polyurethane foam and glass/epoxy composite material. The results of numerical simulations are validated through low-velocity impact tests on sandwich panels, showing good agreement with experimental results, and highlighting the importance of considering viscoelastic properties for accurate modeling.
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
(2023)
Article
Mechanics
Milad Zakeri, Majid Safarabadi, Mojtaba Haghighi-Yazdi
Summary: The buckling instability of architectured plates with constant aspect ratios is investigated in this study. It is found that the geometry of individual blocks plays a significant role in increasing the buckling resistance of plates, while the material of the blocks has a greater influence on the failure of the structure compared to the frictional coefficient.
MECHANICS RESEARCH COMMUNICATIONS
(2023)
Article
Polymer Science
Ehsan Mahdavi, Mojtaba Haghighi-Yazdi, Mahmoud Mosavi Mashhadi, Rasoul Khaledialidusti
Summary: The thermomechanical and barrier properties of modified montmorillonite/polypropylene nanocomposites were investigated, showing that increasing clay content decreases the self-diffusion coefficient of the material and can hinder the degradation of mechanical properties even when temperature and water content increase. The modeling using molecular dynamics and force field calculations was validated by comparing glass transition temperature values obtained from simulations with experimental values, demonstrating good agreement.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Engineering, Multidisciplinary
E. Mandavi, M. Haghighi-Yazdi, M. Baniassadi, M. Tehrani, S. Ahzi, J. Jamali
Article
Engineering, Multidisciplinary
Masoud Morvarid, Ali Rezghi, Alireza Riasi, Mojtaba Haghighi Yazdi
WORLD JOURNAL OF ENGINEERING
(2018)
Article
Polymer Science
Mahmood M. Shokrrieh, Mojtaba Haghighi Yazdi
IRANIAN POLYMER JOURNAL
(2009)