Article
Materials Science, Ceramics
Yawei Zhang, Weikang Liu, Zhiwei Gui, Shenhua Zhou, Zhida Ren
Summary: In this study, the damage mechanisms of SiO2f/SiO2 woven ceramic matrix composites under compressive impact were analyzed using the split Hopkinson pressure bar experiment and finite element analysis. The results showed that the composites lacked sufficient plasticity to restrain the propagation of micro-cracks under high strain rates, leading to the formation of adiabatic shear zones. Plastic fracture, characterized by fiber yarn fracture, matrix fracture, and interfacial debonding, was the major failure mode of the composites.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Abhilash M. Nagaraja, Suhasini Gururaja
Summary: Toughness enhancement in ceramic matrix composites is achieved by introducing a weak interphase between the fiber and matrix. The current work presents a progressive damage model to predict the tensile response of single tow CMCs at the microscale. A 3-phase shear-lag model is implemented for an accurate representation of the microstructure in CMCs with finite thickness interphase. The predicted response of CMCs agrees with experimental results, validating the approach.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Robert K. Goldberg, Amjad S. Almansour, Roy M. Sullivan
Summary: A micromechanics-based method using fiber shear lag analysis was developed to analyze the fast-fracture response of uncoated ceramic matrix minicomposites. This method took into account the irregular geometry of cracks in actual minicomposites and investigated the effects of local variations in fiber volume ratio on the composite response.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Energy & Fuels
Xu Chengyuan, Zhang Jingyi, Kang Yili, Xu Feng, Lin Chong, Yan Xiaopeng, Jing Haoran, Shang Xiangyu
Summary: The study utilized a coupled CFD-DEM method to simulate the formation process of fracture plugging zone and developed a photo-elastic system to model pressure evolution in the zone. The results showed that bridging probability is crucial in determining the formation and efficiency of fracture plugging zone, and critical concentrations were proposed as key indexes for loss control formula design. Additionally, the mesoscale force chain network was identified as a significant factor affecting pressure evolution and macroscopic strength in the zone.
PETROLEUM EXPLORATION AND DEVELOPMENT
(2021)
Article
Chemistry, Physical
Kangdi Zhong, Jiming Zhou, Chentong Zhao, Kang Yun, Lehua Qi
Summary: Carbon fiber reinforced aluminum matrix hierarchical composites have shown great potential as lightweight materials for aerospace. Two types of composites were prepared using pressure infiltration method, and their microstructure, mechanical properties, and failure behavior were analyzed to understand their damage mechanisms. The results revealed that the infiltration process and solidification behavior of the composites can be understood by studying the evolution of macrosegregation and microstructures. Compared to the matrix alloy, the bending strength of H-Cf/Al composites increased by 47%, and the compression strength of P-Cf/Al composites increased by 128%. The study also identified crack propagation behaviors and damage mechanisms of the composites, providing insights for their preparation and application.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
Khaled H. Khafagy, Christopher Sorini, Travis Skinner, Aditi Chattopadhyay
Summary: In this study, a three-dimensional viscoplasticity formulation with progressive damage is developed to investigate the time-dependent constituent load transfer and damage behavior in ceramic matrix composites subjected to creep. The formulation, based on Hill's orthotropic plastic potential and the Norton-Bailey creep power law, is used to simulate creep behavior in single fiber SiC/SiC microcomposites. Results show excellent agreement with experimental and numerical data.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Manufacturing
Shusong Zan, Zhirong Liao, Jose A. Robles-Linares, Gonzalo Garcia Luna, Dragos Axinte
Summary: Metal matrix composites (MMCs) with a combination of ductile and brittle properties have been widely studied, but the cutting mechanisms of fibre reinforced MMCs are not well understood. This study investigates the cutting mechanism of a SiCf/Ti-6Al-4V MMC and reveals the extrusion of the ductile component and crack initiation of the brittle fibre during chip formation. The properties and deformation mechanisms of the matrix are found to affect the crack initiation, which can be controlled by temperature. The findings contribute to the understanding of improving cutting conditions for complex and heterogeneous structures.
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE
(2023)
Article
Materials Science, Ceramics
Xin Liu, Shaojing Dong, Shuo Zhang, Xiuli Shen, Qiang Qu, Jianqiang Xin, Yongjun Wu, Yongpeng Dong
Summary: This study experimentally analyzed the macroscopic mechanical behavior and coupling damage mechanism of 2D woven SiCf/SiC ceramic matrix composites (CMC) prepared by chemical vapor infiltration (CVI) process under tension-shear coupling load. It was found that the tensile modulus and proportional limit of SiCf/SiC-CMC had no significant difference with the increase of off-axis angle, while the failure strength decreased. Microscopic analysis using scanning electron microscope (SEM) and cluster analysis of acoustic emission (AE) signals revealed the main damage types and their relationship with macro mechanical behavior under different loading conditions. It was observed that the tension-shear coupling load affected the evolution process of basic damage forms and subsequently changed the macro properties of SiCf/SiC-CMC.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Ming Lou, Xiang Chen, Kai Xu, Zixuan Deng, Leilei Chen, Jian Lv, Keke Chang, Liping Wang
Summary: The study focused on investigating the wear behavior of a ceramic-metal composite (high Mn steel + 50 wt.% TiC) under different temperatures and atmospheres. A critical temperature of around 125 degrees C was observed, marking a transition in wear mechanisms from hardness dominance to toughness dominance. The competitive micro-mechanisms of surface decarburization and toughening of ceramic particles were delineated, providing interpretation of the wear behavior of ceramic-metal composites.
Article
Materials Science, Ceramics
Karthikeyan Ramachandran, Subhashree Leelavinodhan, Christian Antao, Antony Copti, Cantalapiedra Mauricio, Yelisetti Lakshmi Jyothi, Doni Daniel Jayaseelan
Summary: The failure mechanisms of Oxide-Oxide ceramic matrix composites AS-N610 were investigated in this study. The unnotched samples showed perfect elastic behavior at room temperature, while the notched samples exhibited pseudo-ductile behavior. The tensile strength of the composites decreased at high temperatures. Thermal shock experiments revealed a reduction in retained strength of the samples. Fracture origin was observed on the mid-plane of all samples, indicating higher fiber pull-out, delamination, and pseudo-ductile behavior. Finite element analysis confirmed stress concentration on the failure areas.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Xiao Han, Xiguang Gao, Yunfa Jia, Weikang Meng, Yingdong Song, Yuchun Feng
Summary: The paper proposes a method for identifying the interface shear stress of unidirectional ceramic matrix composites based on the shear lag model. By inserting experimental data into the functional relationship, the interface shear stress under different numbers of cycles was successfully identified. Simulation results indicate that this method is more appropriate for the composites used in this paper.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Yuanyuan Ma, Jiangtao Wang, Guizhe Zhao, Yaqing Liu
Summary: Ceramics/composite laminated armor structures have been widely used in bulletproof materials design for their synergistic energy matching. However, limited experimental testing due to heavy workload and high costs poses challenges. In this study, B4C ceramics/ultra-high molecular weight polyethylene (UHMWPE) composite targets were studied using finite element analysis to predict the impact of ceramic splicing size, impact position, and size on anti-elastic performance. The results showed that square splicing and large size ceramics/fiber composites exhibited the best anti-elastic properties when impacted at the center position.
CERAMICS INTERNATIONAL
(2023)
Article
Mechanics
Thibault P. A. Hernandez, Andrew R. Mills, Hamed Yazdani Nezhad
Summary: Research on high-strain loading response of high-performance composites found that PEEK composites exhibit higher mechanical performance at high strains compared to epoxy composites. This is due to superior micro-scale shear deformation in PEEK, while epoxy composites experience extensive micro-cracking, coalescence, and fiber-matrix debonding.
COMPOSITE STRUCTURES
(2021)
Article
Materials Science, Ceramics
Enzhao Cui, Jun Zhao, Xuchao Wang, Zhefei Sun
Summary: This study investigates the R-curve behavior and toughening mechanisms of graphene nano-platelets (GNPs) reinforced ceramic composites. A toughening model is developed considering interface debonding, crack bridging, and pull-out of GNPs, which quantifies the contribution of different mechanisms to the improved toughness. The theoretical results match well with experimental data when GNPs are uniformly dispersed in the ceramic matrix. Prepared GNPs/ceramic composites all exhibit an increasing R-curve behavior due to the toughening mechanisms induced by GNPs, with the curve becoming steeper as GNPs content increases, indicating enhanced fracture resistance and flaw tolerance. The dominant toughening mechanism is GNPs pull-out, followed by crack bridging and interface debonding. Furthermore, the analytical model suggests that improving GNPs properties, interfacial shear strength, and reducing GNPs thickness can enhance the fracture toughness of ceramic composites.
CERAMICS INTERNATIONAL
(2022)
Article
Energy & Fuels
L. E. Shaofei, S. U. N. Jinsheng, B. A. Yingrui, L. Y. U. Kaihe, Zhang Shupei, X. U. Chengyuan, Cheng Rongchao, L. I. U. Fan
Summary: This article investigates the formation mechanisms of plugging zone and criteria for fracture plugging. It uses experiments and tests to study the formation process of the plugging zone and analyzes the composition and ratios of particles of different sizes. The research results show that the formation of the plugging zone undergoes a process from inertial flow to quasi-static flow, and the plugging zone is composed of fracture mouth plugging particles, bridging particles, and filling particles.
PETROLEUM EXPLORATION AND DEVELOPMENT
(2022)
Article
Engineering, Mechanical
M. R. O'Masta, B. G. Compton, E. A. Gamble, F. W. Zok, V. S. Deshpande, H. N. G. Wadley
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2015)
Article
Engineering, Manufacturing
Brett Gibson Compton, James William Kemp, Timofei V. Novikov, Robert Cody Pack, Cajetan I. Nlebedim, Chad Edward Duty, Orlando Rios, M. Parans Paranthaman
MATERIALS AND MANUFACTURING PROCESSES
(2018)
Article
Materials Science, Multidisciplinary
Brett G. Compton, Nadim S. Hmeidat, Robert C. Pack, Maximilian F. Heres, Joshua R. Sangoro
Article
Engineering, Mechanical
Chad E. Duty, Vlastimil Kunc, Brett Compton, Brian Post, Donald Erdman, Rachel Smith, Randall Lind, Peter Lloyd, Lonnie Love
RAPID PROTOTYPING JOURNAL
(2017)
Article
Materials Science, Composites
Nadim S. Hmeidat, James W. Kemp, Brett G. Compton
COMPOSITES SCIENCE AND TECHNOLOGY
(2018)
Article
Multidisciplinary Sciences
Jordan R. Raney, Brett G. Compton, Jochen Mueller, Thomas J. Ober, Kristina Shea, Jennifer A. Lewis
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2018)
Article
Engineering, Manufacturing
Chad Duty, Christine Ajinjeru, Vidya Kishore, Brett Compton, Nadim Hmeidat, Xun Chen, Peng Liu, Ahmed Arabi Hassen, John Lindahl, Vlastimil Kunc
JOURNAL OF MANUFACTURING PROCESSES
(2018)
Article
Engineering, Chemical
Tae Hui Kang, Brett G. Compton, William T. Heller, Shuo Qian, Gregory S. Smith, Volker S. Urban, Chad E. Duty, Changwoo Do
POLYMER ENGINEERING AND SCIENCE
(2019)
Article
Materials Science, Ceramics
James W. Kemp, Nadim S. Hmeidat, Brett G. Compton
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2020)
Article
Engineering, Manufacturing
Nadim S. Hmeidat, Robert C. Pack, Samantha J. Talley, Robert B. Moore, Brett G. Compton
ADDITIVE MANUFACTURING
(2020)
Article
Engineering, Multidisciplinary
Stian K. Romberg, Christopher J. Hershey, John M. Lindahl, William Carter, Brett G. Compton, Vlastimil Kunc
Article
Materials Science, Multidisciplinary
Orlando Rios, William Carter, Brian Post, Peter Lloyd, David Fenn, Cindy Kutchko, Reza Rock, Kurt Olson, Brett Compton
MATERIALS TODAY COMMUNICATIONS
(2018)
Article
Engineering, Manufacturing
Brett G. Compton, Brian K. Post, Chad E. Duty, Lonnie Love, Vlastimil Kunc
ADDITIVE MANUFACTURING
(2017)
Article
Engineering, Mechanical
Rachel R. Collino, Tyler R. Ray, Rachel C. Fleming, James D. Cornell, Brett G. Compton, Matthew R. Begley
EXTREME MECHANICS LETTERS
(2016)
Article
Engineering, Multidisciplinary
M. R. Talagani, S. DorMohammadi, R. Dutton, C. Godines, H. Baid, F. Abdi, V. Kunc, B. Compton, S. Simunovic, C. Duty, L. Love, B. Post, C. Blue
Article
Engineering, Mechanical
A. P. Simonov, I. V. Sergeichev
Summary: The direct impact method provides a higher sample deformation rate and reliable results for materials with low yield strength and hardening rate. This study proposes an alternative procedure for calculating the strain rate in order to improve accuracy of the direct impact method for a wide range of metals and alloys. The proposed method has been validated through finite element analysis and direct impact tests, and it qualitatively changes the shape of the stress-strain curve by adding an unloading area.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Qiang Wei, Zifeng Li
Summary: This study investigates the dynamic bifurcation of a column when it impacts a rigid plane vertically, which is different from the classical Eulerian static buckling. The findings show that either the dimensionless critical buckling time or the dimensionless critical buckling velocity can be used to determine whether buckling has occurred. Different dimensionless initial defects in the column result in different dimensionless displacement responses, and the nonlinear effect influences the analysis results.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
M. C. Price, M. J. Cole, K. H. Harriss, L. S. Alesbrook, M. J. Burchell, P. J. Wozniakiewicz
Summary: This article introduces a new gas gun developed at the Centre for Astrophysics and Planetary Science, University of Kent, which can produce vertical impacts at speeds up to 2 km/s. The gun design, assembly, operation, and ancillary components are described in detail. The experimental results demonstrate that the gun performs as expected.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Fanny Gant, Gabriel Seisson, Patrice Longere, Skander El Mai, Jean-Luc Zinszner
Summary: The article investigates the high strain rate response of metals and alloys under radial expansion and compares different materials. The results show that different materials exhibit different responses in terms of deformation and fracture.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
M. D. Fitzgerald, J. D. Pecover, N. Petrinic, D. E. Eakins
Summary: This study investigates the mechanism for the destruction of thick flyers accelerated using electric guns and proposes strategies for mitigating their break-up based on experimental results and mathematical models. The findings suggest that limiting the maximum pressure within the flyer and extending the current rise time can prevent flyer failure, increasing the efficiency and shock duration of the electric gun.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Guowen Gao, Enling Tang, Guolai Yang, Yafei Han, Mengzhou Chang, Kai Guo, Liping He
Summary: In this study, the dynamic constitutive model of Al/Ep/W material was investigated and verified through experiments and numerical simulations. The proposed model accurately described the mechanical behavior of the material under high strain rates, providing an important reference for evaluating the response characteristics of the new energetic material projectile to lightweight aluminum armor.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Minzu Liang, Meng Zhou, Xiangyu Li, Yuliang Lin, Fangyun Lu
Summary: UHMWPE fiber mesh reinforced polyurea composites improve structural strength and blast resistance performance, and can alter the failure mode. Loose filler is generated as polyurea melts and fragments penetrate. Joint loads are classified into three categories based on their connection and duration.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Ashutosh Jha, Guglielmo Cimolai, Iman Dayyani
Summary: The present article introduces the Zero Poisson's Ratio Fish Cells metamaterial and investigates the effects of Poisson's ratio on the crashworthiness of different lattice structures. Numerical results demonstrate that the Zero Poisson's Ratio model possesses greater stability and structural integrity with minimal edge deformations.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Hongbo Zhang, Dayong Hu, Xubin Ye, Xin Chen, Yuhuai He
Summary: This study investigated the impact of spherical foreign objects on simulated blade edges through experimental and theoretical analysis. The experimental results showed that increasing impact energy resulted in larger damage sizes, and three distinct types of deformations were observed in FOD. Accurate FOD prediction models were developed using linear and power formulas. The theoretical analysis using a spring-mass system based on Winkler's elastic-plastic foundation theory yielded results in good agreement with experimental measurements, providing a reference for fatigue life assessment of aeroengine blades.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
L. M. Reitter, Y. A. Malik, A. B. Jahn, I. V. Roisman, J. Hussong
Summary: This study characterizes the dynamic strength of wet granular ice layers through impact tests. The results reveal strong connections between ice particles in ice layers generated by ice crystal accretion. Comparable strength values can be obtained by reinforcing ice particle connections in ice layers prepared in the laboratory.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Kyle Mao, Genevieve Toussaint, Alexandra Komrakova, James D. Hogan
Summary: In this study, the Generalized Incremental Stress State dependent damage MOdel (GISSMO) is used to simulate the high-velocity impact failure of Armox 500T steel. The GISSMO is calibrated and validated using experimental data from the literature, and is then applied to investigate the impact failure behaviors of bi-layered steel systems. The results provide new capabilities and insights for the design of armor structures and evaluation of impact failure behaviors in Armox 500T/RHA bi-layered systems.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Asim Onder
Summary: This paper investigates the performance of bumper plates with wavy surfaces under hypervelocity impact and finds that they are more effective in decreasing the impact energy compared to flat plates. The study also reveals the distinctive debris cloud generation that has never been reported before.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Zhi-Yong Yin, Xiao-wei Chen
Summary: This study numerically reveals three typical fracture modes of explosively-driven metal shells and investigates the influencing factors of different fracture modes through experimental data and dimensional analysis.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Jiri Pachman, David J. Chapman, Marek Foglar, Martin Kunzel, William G. Proud
Summary: Through the study of different types of concrete, it was found that despite their compositional complexity, range of compressive strengths, and reinforcement methods, the average Hugoniot data were remarkably similar between different concrete types.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Konstantin Kappe, Klaus Hoschke, Werner Riedel, Stefan Hiermaier
Summary: This paper presents a multi-objective optimization procedure for effectively designing gradient lattice structures under dynamic loading. The aim is to maximize energy absorption characteristics and achieve a lightweight design. Through considering design variables such as the relative density and density gradient, the peak crushing force reduction and maximized specific energy absorption are simultaneously optimized. A simplified beam-based finite element model is used to efficiently model and simulate the lattice structures. An artificial neural network is trained to predict energy absorbing characteristics and find optimal lattice structure configurations. The network is trained using a multi response adaptive sampling algorithm, allowing parallel simulation with automatically generated finite element models. A multi-objective genetic algorithm is then used to find optimal combinations of design parameters for lattice structures under different impact velocities and cell topologies.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)