Article
Engineering, Biomedical
Omer Subasi, Atacan Oral, Sinan Noyan, Orcun Tuncozgur, Ismail Lazoglu
Summary: This study investigated the effects of modular design on fracture plate bending stiffness and failure through finite element analysis, proposing a strategy that matches the performance of monolithic plates. A successful modular plate design was able to significantly decrease stiffness and strength, while still providing sufficient mechanical performance for fracture fixation scenarios. The computational methods demonstrated the viability of modularization as an alternative to traditional monolithic plates, with the added advantage of alleviating stress shielding.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2021)
Article
Materials Science, Composites
Carson Squibb, Masaki Hada, Michael Philen
Summary: Polymer-filled honeycomb composites have higher in-plane moduli compared to honeycomb or polymer alone. Previous numerical modeling identified two key mechanisms for this stiffness amplification. This research extends these findings to thick walled honeycombs and experimentally validates the model predictions. The results support the model predictions and demonstrate the potential applications of these composites.
POLYMER COMPOSITES
(2023)
Article
Materials Science, Composites
Mehmet Cagri Tuzemen
Summary: This study investigates the behavior of different composites under tensile load, including pure glass fiber/epoxy, pure carbon fiber/epoxy, interply hybrid, and locally nested intraply hybrid composites. Interply hybrid composites have an average tensile strength similar to that of the glass and carbon fiber/epoxy composites, while intraply hybrid composites show lower tensile strength due to fiber discontinuity. The study concludes that pure or interply hybrid composites are suitable for cases where tensile strength is important, while locally nested intraply hybrid composites can be used for special cases requiring different properties in different regions of a structure.
POLYMER COMPOSITES
(2022)
Article
Materials Science, Ceramics
Xueni Zhao, Zhenzhen Gui, Xueyan Chen, Weigang Zhang, Pu Yang, Jiamei Zheng, Ao Liu
Summary: Randomly distributed and controllably distributed carbon fiber-reinforced hydroxyapatite composites were studied for designing and preparing composite artificial bones with improved mechanical properties. The results showed that fiber distribution significantly affects the elastic modulus of the composites. The study confirmed the rationality and accuracy of the RVE model for predicting mechanical properties.
CERAMICS INTERNATIONAL
(2021)
Article
Mathematics
Yan Chen, Qiang Du, Xiyang Yin, Renjie Fu, Yiyun Zhu
Summary: In this study, the stresses of the radius and ulna at different flexion angles of the elbow when playing tennis were analyzed using the finite element method. A finite element model was created based on the normal human arm bone, considering the entire arm with metacarpals, radius, ulna, humerus, and scapula. The numerical results showed that the highest principal stresses occurred at specific points on the radius, the elbow joint, and the ulna. Furthermore, the results demonstrated that the external pressures were more significant as the elbow flexion angle increased, and the magnitude of the hitting force did not affect the distribution pattern of the principal stress. To prevent injuries, it is recommended to use a stroke with less elbow flexion and wear protective gear on the hand, wrist, and elbow.
Article
Materials Science, Composites
Jianwei Qiao, Jingran Ge, Haoran Wang, Feng Cheng, Mengran Li, Jun Liang
Summary: Three representative regions are divided based on the observation of 3D needled twill composites, and a model is established to predict the mechanical properties, which agree well with experimental data. The effects of different needling angles and points on the composites are further studied, guiding the design and manufacture of 3D needled twill composites.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Biomedical
Kangning Su, Yuxiao Zhou, Mehran Hossaini-Zadeh, Jing Du
Summary: In this study, finite element models based on micro-CT images were used to investigate bone-implant mechanics, showing higher strain concentration in the thinner buccal bone plates and the impact of implant distance from the buccal plate on mechanical stimuli in bone, which may affect bone remodeling and resorption processes.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2021)
Article
Materials Science, Ceramics
Fei Chen, Ke Yan, Yongsheng Zhu, Jun Hong
Summary: This study aims to address the limitations of the trial-and-error method in ceramics research and the complexity of calculating the toughness of ceramics. Using multilayer graphene and Si3N4 whiskers reinforced Si3N4 ceramics as the model material, the researchers conducted modeling using Voronoi tessellation and applied a novel approach to predict fracture toughness. The simulation and experimental results validated the effectiveness of the proposed method and demonstrated the synergistic toughening effects of MLG and Si3N4w in improving the mechanical properties of MWSCs.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
J. Caleb Arp, John Nicholson, Joseph Geddes, D. Andrew Brown, Sez Atamturktur Russcher, Christopher L. Kitchens
Summary: Composite materials consist of a matrix reinforced by fillers, and the properties of the interphase region between the matrix and filler are poorly known. This study proposes a comprehensive framework to numerically model the interphase effects and infer the key mechanical properties of the interphase region from experimental measurements of the composite modulus.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Mechanics
Jian Ge, Lehua Qi, Wenlong Tian, Xujiang Chao, Wei Li, Hejun Li
Summary: This paper proposes a novel numerical model to accurately predict the effective elastic properties of C/C composites with anisotropic pyrocarbon. The model homogenizes the pore-pyrocarbon system as an equivalent matrix and divides it using a modified Voronoi tessellation method based on pyrocarbon micromorphology. Cohesive elements are introduced to capture the interphase effect on the effective elastic properties of C/C composites.
COMPOSITE STRUCTURES
(2023)
Article
Materials Science, Composites
David Krzikalla, Jakub Mesicek, Radim Halama, Jiri Hajnys, Marek Pagac, Tomas Cegan, Jana Petru
Summary: This study focused on experimental and numerical examination of the flexural properties of FDM long carbon fibre reinforced composites with polymeric matrix of Onyx through 3-point bending test. The reinforced layer distribution was found to be crucial over the fibre content, with comparable longitudinal material constants but dissimilar shear and transversal constants.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Chao Yu, Yuhua Wu, Zhi Yang, Xinwu Shu, Hong Xiao
Summary: In this study, the effect of the degree of hard-phase fracture on the mechanical properties of accumulative-roll-bonded metal composite plates was investigated through experimental tests and finite element simulations. The results showed that the fracture of the intermediate Ti layer significantly degraded the mechanical properties, but the more distributed the Ti layer was within the composite plate during accumulative roll bonding, the better were the mechanical properties. Tensile fracture of the composite plate only occurred in the Al phase, and the more compact the Ti distribution, the more severe the tearing and delamination of the Al phase. Through finite element simulations, it was concluded that the shorter the distance between the Ti fragments along the loading direction, the higher the stress and the strain rate, which resulted in premature fracture and degradation of the mechanical properties.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Civil
Zuo Hao, Chen Yixin, Jia Feng
Summary: This paper proposes a novel wavelet finite element formulation for thermo-mechanical coupling analysis of laminated composite plates. The method is based on B-spline wavelet functions, which improve the convergence, accuracy, and efficiency of the model. Numerical examples demonstrate the accuracy and reliability of the proposed method.
THIN-WALLED STRUCTURES
(2022)
Article
Mechanics
Abdelouahab Tati
Summary: The buckling behavior of functionally graded rectangular plates under mechanical and thermal loading are investigated using a four-node finite element based on a simple high-order shear deformation theory. The proposed model eliminates the need for shear correction factors by introducing the assumed natural shear strain technique to reduce shear locking phenomenon. The study also considers the effects of different factors on the buckling behavior of the plates.
ARCHIVE OF APPLIED MECHANICS
(2021)
Article
Engineering, Biomedical
Ofer Braunshtein, Liat Levavi, Igor Zlotnikov, Benny Bar-On
Summary: This study analyzes the mechanical response of the near-interface in biological composites to nanoscale dynamic mechanical analysis using theoretical modeling and finite-element simulations. By identifying the dominating load-bearing mechanisms of the near-interface region, simple semi-empirical formulations are proposed for approaching the mechanical properties of the biological composite.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2023)
Article
Materials Science, Ceramics
Andrew J. Parsons, Reda M. Felfel, Matthew D. Wadge, David M. Grant
INTERNATIONAL JOURNAL OF APPLIED GLASS SCIENCE
(2020)
Article
Polymer Science
Sumaya F. Kabir, Kevin Adlington, Andrew J. Parsons, Ifty Ahmed, Derek J. Irvine
JOURNAL OF APPLIED POLYMER SCIENCE
(2020)
Article
Engineering, Mechanical
Nikhil Garg, Nilanjan Das Chakladar, B. Gangadhara Prusty, Chongmin Song, Andrew W. Phillips
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2020)
Article
Engineering, Biomedical
Yunqi Wang, Jiapeng Fu, Jinsong Liu, Andrew Parsons, Ifty Ahmed, Chris Rudd, Nusrat Sharmin
Summary: This study investigated the production of phosphate glass fiber/polylactic acid (PGF/PLA) composites for biomedical applications, focusing on the effects of compression molding parameters on flexural strength and porosity. Results showed that processing temperature had the most significant impact on laminate flexural strength and PLA molecular weight. The optimized processing conditions identified by the models resulted in flexural strengths of 236 MPa and 293 MPa for composites with fiber contents of 25% and 40% volume, respectively.
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
(2021)
Article
Mechanics
Amit Choudhary, Nilanjan Das Chakladar, Soumitra Paul
Summary: The study proposes a method of controlling grinding-induced defects in C/SiC composites using high-speed grinding. Different factors affect the extent of defects in fibers of different orientations during the grinding process.
COMPOSITE STRUCTURES
(2021)
Article
Polymer Science
Sumaya F. Kabir, Kevin Adlington, Andrew J. Parsons, Derek J. Irvine, Ifty Ahmed
Summary: In this study, hyperbranched polymers were examined as matrix modifiers for enhancing the mechanical properties of E-glass fiber reinforced polymer composites. Among the three matrix modifiers considered, only H-HB showed improvement in mechanical properties compared to LP-GF. The enhanced mechanical properties were attributed to better fiber wetting and crystallization observed with the addition of H-HB.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2021)
Article
Engineering, Manufacturing
Reda M. Felfel, Andrew J. Parsons, Menghao Chen, Bryan W. Stuart, Matthew D. Wadge, David M. Grant
Summary: This study successfully addresses the challenge of retaining a robust fibre-matrix interface in an aqueous environment by applying a polydopamine coating as a coupling agent on phosphate-based glass fibres. The 6-hour coating period was found to strike a balance between fiber strength improvements and degradation caused by the aqueous coating solution. The results demonstrate improved retention of strength and modulus in phosphate-based glass fiber composites, contributing to long-term wet strength properties for bone healing.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Materials Science, Biomaterials
Chuanliang Cao, Pengren Huang, Aruna Prasopthum, Andrew J. Parsons, Fanrong Ai, Jing Yang
Summary: In this study, 3D printed PCL/hydroxyapatite (HA) scaffolds with high ceramic concentration (up to 90 wt%) were made ductile by adding poly(ethylene glycol) without the need for post-printing washing. After 12 weeks implantation in rat calvarial defects, bone regeneration within the scaffolds mainly occurred through intramembranous ossification. Fibrous tissue resembling non-union tissue was formed within pores lacking new bone, suggesting that vascularization is not a deciding factor for determining tissue types regenerated within the pores of 3D printed scaffolds. Multinucleated immune cells were commonly present in all scaffolds surrounding the struts, indicating a role in managing inflammation during bone regeneration within 3D printed scaffolds.
BIOMATERIALS SCIENCE
(2021)
Article
Materials Science, Characterization & Testing
Andrew J. Parsons, Aleksandra Gonciaruk, Xuesen Zeng, Fernando Sarce Thomann, Peter Schubel, Julien Lorrillard, Michael S. Johnson
Summary: This study investigated the use of a certified aerospace resin (RTM 6) for vacuum infusion. By simulating vacuum infusion conditions using thermogravimetric analysis, it was found that full vacuum could be used as long as the temperature was kept below 130 degrees C. Higher temperatures could be used, but with reduced applied vacuum. The pressure-enhanced TGA method can be considered to provide supplemental processing conditions.
Article
Engineering, Manufacturing
Rahul Yadav, N. D. Chakladar, Soumitra Paul
Summary: This study proposes a coupled thermo-mechanical transient analysis method to estimate the cutting performance during micro-machining of Titanium alloy. The effects of dynamic recrystallization and strain softening at a high strain rate are considered using a constitutive flow model. The findings have important implications for the evaluation of cutting performance in micro-machining of Titanium alloy.
JOURNAL OF MANUFACTURING PROCESSES
(2022)
Article
Engineering, Mechanical
Rahul Yadav, N. D. Chakladar, Soumitra Paul
Summary: This study demonstrates through numerical modeling and experimental verification that introducing compressive residual stress on the surface of the workpiece can effectively control burr formation in micro-milling of Ti-6Al-4V, reducing burr width and height by 63%.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Engineering, Biomedical
Chao Tan, Chris D. Rudd, Andrew J. Parsons, Nusrat Sharmin, Ifty Ahmed
Summary: In this study, L-DOPA was utilized as an interfacial agent to enhance the properties of phosphate glass fibre/polycaprolactone composites. Results showed that L-DOPA significantly improved the IFSS of the composites and increased the strength of the glass fibers. Tailoring the coating level to suit either fiber strength or IFSS depending on application requirements is possible.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Bhishm Dewangan, N. D. Chakladar
Summary: A multi-scale predictive tool is developed to estimate the influence of porosity on the curing and post-cure performance of thermoset porous polymers. The model, created in Abaqus with a user-defined dynamic RVE, considers the random distribution of pores and its effects on the cure kinetics. It is found that the cure rate varies with the degree of cure and the direction of heat flow. The model is capable of predicting the cure performance at the interface of porous fiber-polymer.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Rahul Yadav, N. D. Chakladar, Soumitra Paul
Summary: In this study, an analytical methodology is proposed to determine the burr morphology during micro-milling process for different materials. The flow stress is calculated with strain gradient and dynamic recrystallization methods, and contact pressure and minimum chip thickness are introduced through FE simulation. The dimensions of individual burrs are obtained, and the effect of peening on burr formation is investigated, which reduces the top burr formation by 67%.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Biochemistry & Molecular Biology
Mohammad Nurnabi, Snahasish Bhowmik, Md Sirajur Rahman, Tasrina Rabia Choudhury, Andrew J. Parsons, Scott D. Young
ORIENTAL JOURNAL OF CHEMISTRY
(2020)
Article
Engineering, Biomedical
Xinyao Zhu, Yifan Liu, Jing Ye, Wei Xu, Xuexia Zhao, Tianyan Liu
Summary: This study reveals the adverse effect of acid on dentin in terms of degradation of its fracture toughness. The peritubular dentin plays a significant role in enhancing the dentin's fracture resistance capability. The findings highlight the importance of structural integrity for dentin.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2024)
Article
Engineering, Biomedical
Priya Ranganathan, Vijayakumari Sugumaran, Bargavi Purushothaman, Ajay Rakkesh Rajendran, Balakumar Subramanian
Summary: The study aims to design and fabricate an ultra-easier multi-functional biomedical polymeric scaffold loaded with unique equimolar Ca:P phasic bioactive glass material. The results showed that the G:BG (1:2) ratio is the more appropriate composition for enhanced bio-mineralization and higher surface area. The scaffold can induce mitogenesis in osteoblast cells for hard tissue regeneration and rapid collagen secretion in fibroblast cells for soft tissue regeneration.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2024)
Article
Engineering, Biomedical
Ziad Guerfi, Oum keltoum Kribaa, Hanane Djouama
Summary: Hydroxyapatite, a biocompatible and bioactive ceramic material, has been widely studied in fields such as orthopedics and plastic surgery. The use of computational tools, especially density functional theory, has become increasingly important in research. In this study, Hydroxyapatite was synthesized using the double decomposition method and quantum mechanical computations were performed using density functional theory. The experimental and computational results confirmed the successful synthesis of Hydroxyapatite and showed good agreement in spectroscopic characterizations.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2024)
Article
Engineering, Biomedical
Sally AbdulHussain Kadhum, Nassier A. Nassir
Summary: In this research, porous composites were successfully prepared and reinforced for bone scaffold applications. The functional groups, pore structure, and composition distribution of the materials were characterized using techniques such as FTIR, Atomic Force Microscopy (AFM), and Scanning Electron Microscopy (SEM).
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2024)
Article
Engineering, Biomedical
Veronika Geiger, Felicitas Mayinger, Moritz Hoffmann, Marcel Reymus, Bogna Stawarczyk
Summary: The study investigated the mechanical properties of four additively manufactured denture base resins in different measurement environments, and found that the measurement environment impacts the strength and fracture toughness of the materials.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2024)
Article
Engineering, Biomedical
Junxiao Wang, Amatjan Sawut, Rena Simayi, Huijun Song, Xueying Jiao
Summary: The development of cost-effective and eco-friendly conductive hydrogels with excellent mechanical properties, self-healing capabilities, and non-toxicity is of great significance in the field of biosensors.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2024)
Article
Engineering, Biomedical
Yijun Zhou, Lisa Ho, Ayan Samanta, Philip Procter, Cecilia Persson
Summary: In this study, soft, non-setting biomaterials based on Hyalectin gels and different morphological parameters of hydroxyapatite (HA) particles were evaluated as potential augmentation materials for orthopaedic implant fixation. The results showed that constructs reinforced with irregularly shaped nano-HA particles and spherically shaped micro-HA particles had significantly higher pull-out force compared to the control group.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2024)
Article
Engineering, Biomedical
Mehdi Jahandardoost, Donald Ricci, Abbas S. Milani, Mohsen Jahandardoost, Dana Grecov
Summary: Tubular flow diverters are important for treating cerebral aneurysms. A new design called VR-eCLIPs has been developed to cover the neck of challenging bifurcation aneurysms. A finite element model has been used to simulate the implantation processes of VR-eCLIPs and assess potential plastic deformation.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2024)
Article
Engineering, Biomedical
Marek Traczynski, Adam Patalas, Katarzyna Roslan, Marcin Suszynski, Rafa l Talar
Summary: This article evaluates the forces acting on intravenous needles during insertion into the skin and selects the most suitable model for future research. The experimental results show that needle size, insertion angle, and insertion speed have an influence on the measured force values.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2024)
Article
Engineering, Biomedical
Chester Jar, Andrew Archibald, Monica Gibson, Lindsey Westover
Summary: This study evaluates the ASIST technique for assessing the stability of dental implants. The results show that the ASIST technique can reliably measure the interfacial stiffness of dental implants, which is not significantly influenced by different abutment types. This method may provide an improved non-invasive way to measure the stability of dental implants.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2024)
Article
Engineering, Biomedical
Ali Kamali, Kaveh Laksari
Summary: In this paper, a UNet-based neural network model (El-UNet) is developed to infer the spatial distributions of mechanical parameters. The El-UNet shows superior performance in terms of accuracy and computational cost compared to other neural network models. A self-adaptive spatial loss weighting approach is proposed, which achieves the most accurate reconstructions in equal computation times.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2024)
Article
Engineering, Biomedical
Chunyan Yu, Yanju Lu, Jinhui Pang, Lu Li
Summary: In this study, a safe and effective hemostatic composite sponge was developed by combining chitosan and hydroxypropylmethylcellulose (HPMC). The sponge exhibited excellent flexibility and rapid hemostatic ability in vitro. In vivo assessments showed that the sponge had the shortest clotting time and minimal blood loss.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2024)
Article
Engineering, Biomedical
Zhongliang Yu, Lin Yu, Junjie Liu
Summary: The study proposes incorporating functionally graded tablets into nacreous composites to enhance both stiffness and damping properties. Analytical formulae and numerical experiments demonstrate the effectiveness of this design, surpassing existing homogeneous composites in performance.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2024)
Article
Engineering, Biomedical
Marc Graham, Sandra Klinge
Summary: This study investigates the macroscopic diffusion behavior of heterogeneous gels using a homogenization method in a finite element framework. Two materials, calcifying PDMA and PAAm, were studied, and the results show that the diffusivity of PDMA has a strong nonlinear dependence on the solute molecule radius.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2024)
Article
Engineering, Biomedical
Abdur-Rasheed Alao
Summary: This study aimed to find the optimal sandblasting parameters for roughening YTZP surfaces. Through experimental and statistical analysis, the best setting was found to be IA = 45 degrees, AP = 110 μm, ST = 20 s, and P = 400 kPa, which resulted in the maximum surface roughness, phase transformation, and shear bond strength.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2024)
