Article
Polymer Science
Shu-Yu Jhou, Ching-Chi Hsu, Jui-Chia Yeh
Summary: This paper introduces a dynamic drop weight impact simulation for predicting the impact response of 3D printed polymeric sandwich structures. The study shows that the shape, number, and material stiffness of the lattice cores have a significant effect on their shock absorption characteristics, providing an effective simulation method for various industries.
Article
Mechanics
Na Hao, Linfeng Zhu, Zhangming Wu, Liao-Liang Ke
Summary: This paper investigates the nonlinear bending behavior of unsymmetric double-layer lattice truss core sandwich beams (LTCSBs). A theoretical model based on Allen's model and von Karman nonlinear theory is established, with the midplane of the mid-sheet as the reference plane. The deflection for nonlinear bending is determined using the Ritz method and validated by the finite element method. The study reveals that the nonlinear deflections of unsymmetric LTCSBs can exhibit softening-spring nonlinearity in one direction.
MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES
(2023)
Article
Mechanics
S. A. M. Ghannadpour, M. Mahmoudi, K. Hossein Nedjad
Summary: This study introduces 10 strut-based topologies for lattice-core sandwich beams, investigates their mechanical properties via digital light processing (DLP) 3D technology, and confirms experimental results with finite element analysis (FEA). Some structures show potential as optimal choices for 3D-printed sandwich panels.
COMPOSITE STRUCTURES
(2022)
Article
Construction & Building Technology
Simmi Guptaa, H. D. Chalak
Summary: In this study, bending and free vibration analyses are conducted on sandwich FGM beams using the recently proposed HOZT. Different material gradation laws and stress distributions across the thickness are examined, revealing the distinct behavior of unsymmetric beams compared to symmetric ones. The findings provide valuable insights for future studies in this field.
STEEL AND COMPOSITE STRUCTURES
(2022)
Article
Engineering, Civil
Xuan Zhao, Lulu Wei, Dawei Wen, Guohua Zhu, Qiang Yu, Z. D. Ma
Summary: The study focuses on the bending response and energy absorption of the star-triangular honeycomb core (STH-C) and sandwich beam with an STH-C (STH-SW), showing that structural parameters significantly influence the load-bearing capacity of the sandwich beams, especially the thickness-to-length ratio t/l.
ENGINEERING STRUCTURES
(2021)
Article
Engineering, Aerospace
Yiru Ren, Yabin Deng, Hongyong Jiang
Summary: A new lightweight vertical stiffener is proposed to enhance Specific Energy-Absorption behavior of Sandwich Composite Structure; By investigating stiffeners with different thicknesses, numbers, and positions, it is found that stiffeners can significantly improve the energy absorption performance of the composite structure.
CHINESE JOURNAL OF AERONAUTICS
(2021)
Article
Engineering, Marine
Guangming Fu, Mingliang Li, Jiankun Yang, Shuxin Li, Baojiang Sun, Segen F. Estefen
Summary: This study establishes a finite element numerical model for sandwich pipe collapse prediction under external pressure, validates it through experiments, and identifies the geometric parameters, material properties, and interlayer adhesion properties that influence the collapse strength of the sandwich pipe.
Article
Materials Science, Multidisciplinary
Mihaela Iftimiciuc, Simona Lache, Dirk Vandepitte, Marian Nicolae Velea
Summary: This paper investigates the bending performance of a novel pyramidal cellular sandwich structure and analyzes its bending and shear stiffness using numerical and experimental methods. The study demonstrates the potential of this structure for use in sandwich panel assemblies.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Engineering, Civil
M. Kazemi
Summary: The study found that changing the number of layers and arrangement in sandwich beams can increase their energy absorption capacity and specific energy absorption, as well as improve crushing force efficiency.
Article
Engineering, Civil
A. Garg, H. D. Chalak, M-O Belarbi, A. M. Zenkour
Summary: This study investigates the free vibration and bending behavior of sandwich beams containing open-cell metal foam core using zigzag theory. The governing equations for free vibration and bending behavior are determined using Hamilton's principle and the principle of minimum potential energy, respectively. Three types of pore distribution are examined in this study. The influence of pore distribution, end condition, core thickness, and foam coefficients on beam behavior is studied in detail. The face sheets are assumed to be made of the same material as the foam. It is observed that the nature of pore distribution and end conditions greatly affect the behavior of the beam.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Niranjan Chikkanna, Shankar Krishnapillai, Velmurugan Ramachandran
Summary: This study evaluates the in-plane and out-of-plane bending performance of newly developed re-entrant diamond auxetic metamaterials. Experimental and numerical studies compare the performance of these materials with regular re-entrant panels of the same unit cell size. The results show significant improvements in energy absorption for the new metamaterial.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Mechanics
Farhad Serajzadeh, Parviz Malekzadeh
Summary: This study investigates the dynamic responses of curved sandwich beams with functionally graded carbon nanotube reinforced composite face sheets and porous core subjected to low velocity impact. A layerwise-finite element approach based on the two-dimensional elasticity theory is used to accurately simulate the dynamic behavior. The contact force is estimated using the modified Hertz law. Parametric studies are carried out to examine the effects of carbon nanotube distribution patterns, impactor velocity, curved beam opening angle, length-to-thickness ratio, and core-to-face sheet thickness ratio on the responses of the sandwich curved beams.
MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES
(2023)
Article
Engineering, Civil
Xinrong Fu, Xiong Zhang
Summary: This study investigates the bending behavior of thin-walled arched beams and their energy absorption properties. Experimental tests and numerical simulations show that arched beams have better energy absorption performance compared to straight beams, and beams with square sections generally have better energy absorption efficiency than those with circular sections.
THIN-WALLED STRUCTURES
(2023)
Article
Engineering, Civil
Amin Nabati, Tohid Ghanbari-Ghazijahani, Hamid R. Valipour
Summary: This experimental study investigated the flexural response of innovative combinations of timber, steel, and fibre reinforced polymer to achieve lightweight beam sections. The designed composite beams showed significant capacity improvement and ductility boost compared to plain timber elements, making the proposed designs promising for further investigation. The research aimed to restrict buckling of steel beams once timber was attached, acting as a sandwich composite.
ENGINEERING STRUCTURES
(2021)
Article
Engineering, Mechanical
Vahid Atabakhshian, Abbas Ghareghashi
Summary: This article investigates the effect of topology optimization on lattice-core sandwich beams as energy absorbers using ABAQUS software. Two types of lattice cores crafted from expanded metal sheets with three different cell orientations are studied. The Solid Isotropic Microstructure with Penalization method is employed for topology optimization. Results from experiments and simulations demonstrate significant improvement in Specific Energy Absorption (SEA) with topology optimization. The study also presents optimal topologies for three volume fractions based on desired criteria.
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2023)
Article
Engineering, Mechanical
Hossein Taghipoor, Mohammad Damghani Nouri
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
(2020)
Article
Engineering, Civil
Hossein Taghipoor, Arameh Eyvazian, Farayi Musharavati, T. A. Sebaey, Ahmad Ghiaskar
Article
Engineering, Manufacturing
Arameh Eyvazian, Hossein Taghipoor, TrongNhan Tran
Summary: The study found that aluminum circular tubes with vertical corrugations have better crashworthiness and energy absorption characteristics. The combination of corrugation number and tube diameter impacts energy absorption capacity, while vertical corrugations increase peak force but result in smoother force-displacement curves. The influence of corrugation number on crashworthiness performance was investigated, and an analytical relationship was developed for mean force based on experimental results. Improved Technique of Order Preference by Similarity to Ideal Solution (ITOPSIS) was used to select the best structure for energy absorption purposes.
INTERNATIONAL JOURNAL OF CRASHWORTHINESS
(2022)
Article
Engineering, Manufacturing
Hossein Taghipoor, Ahmad Ghiaskar, Aghil Shavalipour
Summary: The study found that an increase in tube length did not affect the maximum force in square thin-wall tubes under high strain rates, while an increase in hole diameter led to a decrease in the maximum force. Additionally, compared to tubes without holes, the presence of holes in square thin-wall tubes reduced the collapse force efficiency.
INTERNATIONAL JOURNAL OF CRASHWORTHINESS
(2022)
Article
Engineering, Mechanical
Hossein Taghipoor, Arameh Eyvazian
Summary: In this study, the energy absorption and collapse behaviors of composite-coated corrugation-reinforced cylindrical absorbers were investigated. The results showed that the composite-coating could improve the energy absorption, while the longitudinal and transverse corrugations had different effects on the performance of the absorbers. The use of combined corrugation could significantly impact the collapse behavior of the coated absorbers.
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2022)
Article
Polymer Science
Hossein Taghipoor, Abdolhossein Fereidoon, Ahmad Ghasemi-Ghalebahman, Jaber Mirzaei
Summary: This study investigates the mechanical and morphological properties of polypropylene-based nanocomposites reinforced with basalt fiber, graphene nanosheets, and polypropylene-grafted maleic anhydride. The results show that the inclusion of graphene nanosheets at 1 wt% improves the tensile, flexural, and impact strength, while further inclusion at 1.5 wt% weakens these properties. Adding basalt fibers to 15 wt% improves the elastic modulus, tensile, flexural, and impact strength. The incorporation of PP-g-MA enhances the graphene nanosheet/basalt fiber adhesion to the matrix, resulting in improved tensile strength and elastic modulus.
Article
Materials Science, Multidisciplinary
Hossein Taghipoor, Mahdi Sefidi
Summary: This paper investigates the effect of foam-filled on trapezoidal corrugated core and validates the results through experimental and numerical simulation. The results show that the bi-core sandwich panel without foam filling has a higher specific energy absorption rate.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART L-JOURNAL OF MATERIALS-DESIGN AND APPLICATIONS
(2023)
Article
Engineering, Civil
Hossein Taghipoor, Abbas Sadeghian
Summary: The use of fiber-reinforced concrete in various industries is developing due to its desired mechanical properties, lightweight structure, good energy absorption capacity, and high initial strength under impact loads.
Article
Polymer Science
Hossein Taghipoor, Jaber Mirzaei
Summary: This study investigates the tensile strength of polypropylene-based bio-composites reinforced with natural kenaf fibers, basalt fiber, and nanographenes. The response surface methodology is used to analyze the behavior of the bio-composites based on the weight percentage of basalt, kenaf fibers, and nanographenes. Tensile tests and field emission scanning electron microscope images are utilized to analyze the samples' behavior, indicating the mechanisms of fiber breakage, separation, and pullout from the substrate in improving the bio-composite's behavior.
Article
Construction & Building Technology
Arameh Eyvazian, Elsadig Eltai, Farayi Musharavati, Hossein Taghipoor, T. A. Sebaey, Pouyan Talebizadehsardari
STEEL AND COMPOSITE STRUCTURES
(2020)
Proceedings Paper
Materials Science, Multidisciplinary
Hossein Taghipoor, Arameh Eyvazian, Ahmad Ghiaskar, A. Praveen Kumar, Abdel Magid Hamouda, Massimiliano Gobbi
MATERIALS TODAY-PROCEEDINGS
(2020)
Proceedings Paper
Materials Science, Multidisciplinary
Hossein Taghipoor, Arameh Eyvazian, Ahmad Ghiaskar, A. Praveen Kumar, Abdel Magid Hamouda, Massimiliano Gobbi
MATERIALS TODAY-PROCEEDINGS
(2020)
Article
Construction & Building Technology
Hossein Taghipoor, Mohammad Damghani Noori
STEEL AND COMPOSITE STRUCTURES
(2018)
