Article
Materials Science, Characterization & Testing
Anatoly M. Bragov, Leonid A. Igumnov, Aleksandr Y. Konstantinov, Leopold Kruszka, Dmitry A. Lamzin, Andrey K. Lomunov
Summary: This paper describes a method for determining the dynamic properties of brittle materials using the split Hopkinson bar technique on mortar as an example. Experimental data from different schemes were compared and mechanical characteristics were discussed, revealing the effect of the nature of the load increase.
Article
Engineering, Mechanical
Frantisek Sebek, Petr Kubik, Jan Tippner, Martin Brabec
Summary: This study focuses on the accurate description of European beech wood under high strain rates to provide reliable input for the finite element method. The experiment was based on split Hopkinson tensile bar tests and pressure bar tests, considering the tensile-compressive failure asymmetry and stress triaxiality, to calibrate the orthotropic behavior of the wood. Continuum damage mechanics were applied to simulate crack propagation realistically within explicit finite elements.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Su Wang, Zhang'ao Shi, Linlin Liu, Zhili Huang, Zhong Li, Juncai Liu, Yongqiang Hao
Summary: The study demonstrates the feasibility and promise of using honeycomb structures in the design of biomimetic bone scaffolds, which matched human bone's elastic modulus and exhibited higher yield strength. Additionally, the permeability of the scaffolds is similar to that of cancellous bone, facilitating cell growth and bone tissue regeneration.
MATERIALS & DESIGN
(2021)
Article
Materials Science, Characterization & Testing
Yinggang Miao, Yongshuai Wang, Wenxuan Du, He He, Qiong Deng, Qingbo Dou
Summary: This study focuses on the theoretical and experimental aspects of the Hopkinson bar loading technique under transient loading. The research formulates ideal incident strain waves and evaluates their characteristics under large deformation. A methodology for single stress wave loading is proposed and experimentally verified. Additionally, methods for achieving the formulated stress waves are proposed and experimentally validated on various materials.
Article
Construction & Building Technology
Tielin Han, Xianfeng Wang, Dawang Li, Dongfeng Li, Feng Xing, Ningxu Han
Summary: Increasing strain rate can enhance the strength of cementitious materials, while increasing microcapsule content affects the strength of initial specimens but benefits the strength of healing specimens. Microcapsules have a positive effect on self-repairing, but a negative impact on pore structure parameters.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Chemistry, Physical
Anatoly M. M. Bragov, Andrey K. K. Lomunov, Mikhail E. E. Gonov, Aleksandr Yu. Konstantinov, Leonid A. A. Igumnov, Victor A. A. Eremeyev
Summary: We discuss the deformation and destruction of fine-grained concrete B22.5 under dynamic loading through experimental and numerical studies. Experimental data is used to identify the dynamic component of two models in the LS-DYNA computational complex. The results show that the experimental strain rate dependences can significantly improve the predictive ability of the model.
Article
Construction & Building Technology
Xing Chen, Changzhong Wang, Suwen Chen, Siyi Yi, Yong Lu
Summary: Low-iron ultra-clear float glass (LIFG) has become popular in landmark and large-scale buildings for its aesthetic characteristics. This paper investigates the dynamic mechanical properties of LIFG for blast resistance design by conducting quasi-static and dynamic tests. The results show that the dynamic compressive and tensile strengths of LIFG are strain-rate dependent, with the tensile strength being more sensitive to strain rate. The strain rate effect does not significantly affect the Young's modulus of LIFG.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Bryan Zuanetti, Kyle J. Ramos, Carl M. Cady, Chris S. Meredith, Daniel T. Casem, Adam Golder, Cynthia A. Bolme
Summary: Conventional Split Hopkinson Pressure Bars (SHPB) are commonly used for high-rate compressive testing of materials, but for very high strain-rates, miniaturization of the setup is required to minimize elastic wave dispersion effects. This paper investigates the use of beryllium Kolsky bars, which are expected to have better performance due to the properties of beryllium. The results demonstrate the advantage of beryllium bars over aluminum and steel in terms of elastic wave dispersion.
Article
Biochemistry & Molecular Biology
Zhuanyuan Zhang, Xiujuan Cai, Yue Lv, Xiaoyan Tang, Naiwen Shi, Jiazhe Zhou, Mingyan Yan, Yinping Li
Summary: The design and synthesis of multifunctional conductive hydrogel reinforced by sulfated polysaccharide from Enteromorpha prolifera (SPE) is demonstrated in this study. The hydrogel exhibits remarkable stretchability, self-healing, self-adhesion, and high sensitivity, making it a potential affordable and reliable conductive sensing material. Additionally, the utilization of SPE in flexible wearable sensors offers a new route for the high-value application of Enteromorpha prolifera.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Materials Science, Multidisciplinary
Hyunho Shin
Summary: The bar properties necessary for bar impact tests were calibrated using the 1D method and 3D method, which were cross-verified for a maraging steel bar. The paper also considers the method of calibrating measured strain and presents a method of determining the impact velocity with reference to a reliably measured strain profile for a bar calibrated via the 1D method.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Scott Sneddon, Daniel M. Mulvihill, Euan Wielewski, Mark Dixon, David Rugg, Peifeng Li
Summary: The titanium alloy Ti407 exhibits lower strength but significantly higher ductility compared to Ti64, attributed to its reduced aluminum content allowing for additional dislocation motion. Ti407 is more sensitive to texturing under applied stress, showing greater grain elongation and rotation compared to Ti64. Its ability to accommodate more deformation before failure will lead to improved impact energy absorption performance, machinability, and potentially lower manufacturing costs.
MATERIALS CHARACTERIZATION
(2021)
Article
Materials Science, Multidisciplinary
H. Jin, B. Sanborn, W-Y Lu, B. Song
Summary: Mechanical characterization of a 304L-VAR stainless steel was conducted under low, intermediate, and high strain rates using different apparatuses. Tensile stress-strain curves showed linear elasticity, work hardening, necking, and fracture at each strain rate level. Flow stress and true failure strain both increased with increasing strain rate.
MECHANICS OF MATERIALS
(2021)
Article
Computer Science, Software Engineering
Tzvi Gershanik, Itay Levin, Daniel Rittel
Summary: 2BarG is a Python-based program that analyzes Split Hopkinson Pressure Bar experiments. It features automatic signal identification and a user-friendly interface, allowing for fast, simple, and efficient data processing.
Article
Engineering, Mechanical
Chenlin Liu, Weibin Wang, Tao Suo, Zhongbin Tang, Yazhou Guo, Yulong Li
Summary: This paper introduces a Combined Tension-Torsion Split Hopkinson Bar system that can load specimens synchronously under high strain rates. The system utilizes electromagnetic energy conversion technique and a new Electromagnetic-release Split Hopkinson Torsion Bar system to achieve precise control and generation of stress pulses.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2022)
Article
Construction & Building Technology
Zhihang Wang, Erlei Bai, Biao Ren, Yan Lv
Summary: The high-temperature impact test was conducted on Basalt Fiber Reinforced Geopolymer Concrete (BFRGC) to study the effects of temperature and basalt fiber on the dynamic mechanical properties of Geopolymer Concrete (GC). The results showed that BFRGC exhibited strain rate and temperature reinforcement effects, as well as high-temperature damage and plasticizing effects. The addition of an appropriate amount of basalt fiber enhanced the dynamic mechanical properties of GC at both room temperature and high temperature, with a fiber content of 0.1% producing the best results.
JOURNAL OF BUILDING ENGINEERING
(2023)
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)