Article
Mechanics
E. Corona, M. Spletzer, B. T. Lester, C. J. Fietek
Summary: This study conducted numerous experiments and simulations on the puncture of 7075-T651 aluminum alloy plates, and the results show that the material models used in the simulations can accurately predict the puncture speed and failure mode.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2022)
Article
Engineering, Marine
Hai-Yang Liu, Xiao-Hua Huang, Guo-Liang Pang, Tai-Ping Yuan, Yu Hu, Si Yuan
Summary: This study evaluates the failure risk of the fish cage by analyzing the yield and fatigue phenomena of the floating structure under wave loads. The results show that the C80 fails when the overall horizontal load reaches 3000 kN or the wave height is 23.4 m. The main failure areas are the mooring points, with stress concentration occurring at the cracked parts. Enhancing the specifications and increasing the circular curvature and assembling clearances can provide guidelines for the structural design and optimization of the HDPE super large fish cage.
Article
Engineering, Civil
Zelin Ding, Jianghan Xue, Yupeng Gao, Jing Wang
Summary: This paper investigates the stress, displacement, and damage modes of cemented material dams (CMDs). By conducting orthogonal tests and structural damage model tests on a specific CMD prototype, the failure process and damage mode of the dam under overload conditions were obtained. The results provide a theoretical basis for the promotion and development of CMDs in the new century.
JOURNAL OF CIVIL STRUCTURAL HEALTH MONITORING
(2023)
Article
Engineering, Mechanical
Shamik Basak, Chanyang Kim, Woojin Jeong, Young Il Jung, Myoung-Gyu Lee
Summary: This study investigates sheared edges of three automotive sheet metals using experimental and numerical analyses. The Hosford-Coulomb ductile fracture model is calibrated and incorporated into finite element simulations to predict trimmed surface quality and burr formations. Results show differences in shear zone and burr height among TRIP steel, hot-stamped steel, and aluminum alloy 5182, with aluminum alloy being more sensitive to cutting clearance.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Mechanics
Marvin Nahrmann, Anton Matzenmiller
Summary: A continuum damage model is proposed to capture the influence of damage on ductile steel sheets under multiaxial loading conditions. The study extends the approach towards nonlocal damage evolution, comparing two established methods and concludes that the gradient enhanced approach is superior for industrial applications in terms of prediction accuracy and simulation time.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2021)
Article
Engineering, Chemical
Jun He, Guijun Xian, Y. X. Zhang
Summary: This study investigated the bond behavior of CFRP-to-steel joints bonded with ductile adhesive through numerical studies and single lap pull tests. The developed finite element model demonstrated good agreement between experimental and numerical results, showing the effectiveness and accuracy of the model in analyzing the bond behavior. Additionally, a parametric analysis was conducted to explore the effect of different parameters on the bonding performance, leading to the proposal of a model for effective bond length based on numerical results.
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
(2021)
Article
Engineering, Multidisciplinary
Xue-Wei Zhang, Jian-Feng Wen, Tao Wang, Xian-Cheng Zhang, Shan-Tung Tu
Summary: Studies were conducted on ductile failure and crack interaction in situations with multiple cracks, using tensile tests and 3D digital image correlation method. A damage evolution model was implemented to simulate ductile fracture and crack interaction, showing that using non-monotonic fracture strain locus in finite element predictions is more accurate and reliable.
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING
(2021)
Article
Engineering, Civil
Dong An, Y. X. Zhang, Richard (Chunhui) Yang
Summary: This study developed finite element models using a novel tracing element approach to capture the mechanical behaviors and failure modes of typical 3D printed concrete structures. The results of the investigation showed that the Mohr-Coulomb and Concrete Damage Plasticity (CDP) models can accurately predict the failure behaviors of 3D printed concrete structures.
ENGINEERING STRUCTURES
(2024)
Article
Mechanics
Yagmur Gocmen, Can Erdogan, Tuncay Yalcinkaya
Summary: This study conducts a numerical analysis of the shaped charge impact process to investigate the jet formation process and penetration performance on metal targets. The finite element (FE) method is used to simulate conical and bowl-shaped liner geometries and observe their effects on projectile shape and penetration capability. The results are compared with experimental data from published literature and Armox 500T demonstrates higher impact resistance compared to #45 steel. The study concludes that liner geometry significantly affects penetration performance.
JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME
(2023)
Article
Nanoscience & Nanotechnology
Kimiya Hemmesi, Hannes Holey, Ahmed Elmoghazy, Robert Bohm, Majid Farajian, Volker Schulze
Summary: The study investigates the effects of weld induced microstructure variations on the multiaxial cyclic properties of ferritic-pearlitic steels, and establishes a numerical model for analysis. Experimental results are used to calibrate the model for multiaxial loading conditions, and the applicability and limitations of the model in fatigue analysis are discussed.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Review
Polymer Science
Guoqiang Luo, Yuxuan Zhu, Ruizhi Zhang, Peng Cao, Qiwen Liu, Jian Zhang, Yi Sun, Huan Yuan, Wei Guo, Qiang Shen, Lianmeng Zhang
Summary: This paper provides a comprehensive overview of the research progress on mechanical properties characterization and modeling of cellular media materials. It emphasizes the importance of constitutive relationships and microstructure models in studying mechanical properties and optimizing structural design. Future research directions and key issues in this area are also discussed.
Article
Multidisciplinary Sciences
Connor Duffin, Edward Cripps, Thomas Stemler, Mark Girolami
Summary: The paper introduces a statistical finite element method for analyzing nonlinear, time-dependent phenomena, focusing on nonlinear internal waves (solitons). A Bayesian approach is used to convert the statistical problem into a nonlinear Gaussian state-space model, suitable for various science and engineering applications. The method is demonstrated with the Korteweg-de Vries equation for solitons, along with algorithms based on extended and ensemble Kalman filters, showing effectiveness through simulation and case studies with experimental data. Examples from additional nonlinear, time-dependent partial differential equations are presented to illustrate the generality of the approach.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Engineering, Civil
Shan Wu, Haoxiang He, Yifei Chen, Shitao Cheng, Zheng Wang
Summary: This study introduces a novel multi-stage yield and failure metal sleeve damper with multiple yield points and multiple failure stages. The energy dissipation components of the damper are external, making it convenient for observation and replacement. Experimental and finite element studies validate the damper's performance.
THIN-WALLED STRUCTURES
(2022)
Article
Engineering, Mechanical
Eui-Kyun Park, Gyo-Geun Youn, Yun-Jae Kim, Robert A. Ainsworth
Summary: This work quantifies the effect of material ductility on notch fracture resistance using FE damage analysis, revealing a linear relationship between notch fracture resistance, notch radius, and material ductility. The results provide useful insights for estimating notch fracture resistance based on material ductility and J-resistance curves obtained from cracked specimens.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2021)
Article
Engineering, Marine
Yi Wang, Jun Huang, Menglan Duan, Chengong Sun, Xiongfei Wang
Summary: This paper studies the change and deformation laws of lateral indentation in pipe-in-pipe (PIP) structure through experimental and numerical methods, and observes three stages of deformation behavior for PIP during lateral indentation. The effects of the diameter and wall thickness of inner and outer pipes on the relationship between the indentation load and lateral indentation were also studied, providing a reference for the design and analysis of PIP structures.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Andrea Gilioli, Francesco Cadini, Luca Abbiati, Giulio Angelo Guido Solero, Massimo Fossati, Andrea Manes, Lino Carnelli, Carla Lazzari, Stefano Cardamone, Marco Giglio
Summary: The design of large-scale structures can be improved by adopting numerical models and combining them with experimental testing. This approach can enhance the understanding of structural behavior, reduce costs and uncertainties in implementing final products, and decrease the number of required experimental tests.
Article
Chemistry, Physical
Riccardo Scazzosi, Marco Giglio, Andrea Manes
Summary: This study investigates the potential of replacing a monolithic shield with a double-layered configuration made from two different metals. Experimental tests and numerical models show that using a layer of high-strength steel as the front layer increases the specific ballistic energy, while using an aluminum plate as the front layer decreases it.
Article
Engineering, Multidisciplinary
Riccardo Scazzosi, Samia Danuta Brejao de Souza, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The Multilayered Armor System combines a ceramic front layer and a ductile backing, designed using numerical models to reduce the workload of experimental testing, but requires expertise. The Finite Element method cannot accurately simulate ceramic fragmentation, leading to the development of a new model in this study that showed good results when validated against experimental data.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Mechanics
Zhen Wang, Tao Suo, Andrea Manes
Summary: In this study, the influence of chemical strengthening residual stress on the flexural strength and fracture behavior of aluminosilicate glass was investigated using a combination of experimental, theoretical, and numerical approaches. It was found that the mechanical strength of chemically strengthened glass is closely related to the depth of the chemical strengthening layer and surface flaw depth. The proposed finite element numerical method was able to accurately replicate the mechanical strength and failure modes of both annealed and chemically strengthened glass, demonstrating the effectiveness of the approach in representing the discrete fracture behavior and strengthening effect of silicate glass.
ENGINEERING FRACTURE MECHANICS
(2021)
Article
Materials Science, Multidisciplinary
Pouya Shojaei, Riccardo Scazzosi, Mohamed Trabia, Brendan O'Toole, Marco Giglio, Xing Zhang, Yiliang Liao, Andrea Manes
Summary: In this study, a combined approach of micro-indentation and meso/micro-scale simulations was proposed to study the mechanical behavior of thin film coatings. The method was validated through micro-indentation testing and finite element simulations on Ti/SiC metal matrix nanocomposite coatings.
Article
Engineering, Civil
Mohammad Rezasefat, A. Gonzalez-Jimenez, Dayou Ma, Alessandro Vescovini, Luca Lomazzi, Amanda A. X. da Silva, Sandro C. Amico, Andrea Manes
Summary: This paper presents an experimental evaluation of the effect of hybridization and stacking sequence on the low-velocity impact response of aramid/S2-glass/epoxy hybrid laminates. Hybridization was found to enhance the impact performance, especially for lower impact energies.
THIN-WALLED STRUCTURES
(2022)
Article
Polymer Science
Mohammad Rezasefat, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: This study presents a novel numerical model for predicting the perforation limit and damage morphology of composite laminates by considering strain rate sensitivity. The results demonstrate that considering strain rate leads to more accurate predictions of the perforation limit and the coupling between interlaminar and intralaminar failure modes improves the prediction of the delamination area.
Article
Chemistry, Physical
Mohammad Rezasefat, Alessio Beligni, Claudio Sbarufatti, Sandro Campos Amico, Andrea Manes
Summary: This study investigates the impact of pre-existing damage on the low-velocity impact response of CFRP through experiments and numerical simulations. A material model based on continuum damage mechanics is developed in Abaqus/Explicit. The model is validated through finite element simulations at the single-element level and more complex models are used to simulate different specimens subjected to low-velocity impacts. The presence of pre-existing damage near the impact region results in severe changes in mechanical response, while impacts farther away from the region show similar results as those on pristine specimens.
Article
Polymer Science
Joziel Aparecido da Cruz, Eduardo Fischer Kerche, Otavio Bianchi, Andrea Manes, Sandro Campos Amico
Summary: This study evaluates the hybridization effect of S2-glass/aramid on polyurethane composites produced by vacuum infusion. The main results show that the pure glass composites have higher density, tensile stiffness and strength, while the aramid laminates have higher impact energy absorption capability. The hybrid laminates have intermediate properties.
Article
Materials Science, Ceramics
Zhen Wang, Yihang Li, Dayou Ma, Xiang Wang, Yulong Li, Tao Suo, Andrea Manes
Summary: This study investigates the ballistic perforation of aluminosilicate glass tiles through experimental and numerical methods. Steel projectiles with different nose shapes (flat, spherical, and conical) were fired into the glass tiles using a gas gun, and it was found that the residual velocity of projectiles and fragmentation behavior of the glass were greatly influenced by the projectile nose shape. A coupled finite element-smoothed particle hydrodynamics (FEM-SPH) numerical model was developed to simulate the ballistic impact behavior of the glass, using the rate-dependent Johnson-Holmquist II (JH-2) constitutive model to describe the mechanical behavior of the glass. The numerical simulations showed good agreement with experimental data, accurately predicting the projectile residual speed, glass tile deformation, and fragmentation process. The proposed model was also used to investigate the effects of projectile deflection angle and tile thickness on the ballistic behavior of the glass.
CERAMICS INTERNATIONAL
(2023)
Article
Mechanics
Mohammad Rezasefat, Dayou Ma, Amanda A. X. da Silva, Chiara Colombo, Sandro C. Amico, Marco Giglio, Andrea Manes
Summary: This paper investigates the performance of asymmetric inter-ply hybrids of plain-weave aramid and satin-weave S2-glass fabrics/epoxy laminates subjected to low-velocity impact. A multi-criteria decision-making analysis and numerical simulation were conducted to determine the best laminate design, considering factors such as fibre ratios, impact sides, and impact energies. The results show that hybrid laminates with aramid on the impact side perform the best.
COMPOSITE STRUCTURES
(2023)
Article
Mechanics
M. Rezasefat, Y. Mostafavi, D. Ma, A. Manes
Summary: This paper presents a hierarchical hybrid micro-macro mechanical damage model to simulate progressive failure in fibre reinforced composite materials. The model combines image processing on SEM cross-sectional images of microstructure with a macro mechanical model in Abaqus/Explicit using a user-defined material model. The hybrid model was verified by comparing results from macroscale simulations and was used to analyze the resin-rich uncertainty in the composite material. The presence of the resin-rich zone was accurately predicted by the hybrid model.
COMPOSITE STRUCTURES
(2023)
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)
Article
Materials Science, Multidisciplinary
Dayou Ma, Mohammad Rezasefat, Joziel Aparecido da Cruz, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The matrix has a significant effect on the impact resistance of composite materials. Replacing a brittle polymer with a more flexible one can improve impact resistance, but it poses challenges to standard testing methods. This study designs a new fixture for testing the low-velocity impact of soft composites and investigates the effect of the fixture on the mechanical performance.
Article
Polymer Science
Alessandro Vescovini, Luca Lomazzi, Marco Giglio, Andrea Manes
Summary: This study evaluates the damage to a carbon-fiber-reinforced polymer plate under blast loading using numerical methods. The results show that the hybrid approach is the most promising in terms of efficiency and accuracy, while the Lagrangian approach accurately reproduces the experimental observations despite its limitations.
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)
