Article
Engineering, Mechanical
Raj Agarwal, Ravinder Pal Singh, Vishal Gupta, Jaskaran Singh
Summary: Mechanical and thermal damage during bone drilling can cause implant failure. High cutting force and temperature above 47 degrees C can lead to bone cell death and microcracks, affecting implant stability. A study comparing conventional bone drilling (CBD) and rotary ultrasonic bone drilling (RUBD) found that RUBD reduces cutting force, temperature rise, microcracks, and bone chip accumulation as compared to CBD.
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2022)
Article
Acoustics
Raj Agarwal, Vishal Gupta, Jaskaran Singh
Summary: This study aims to use ultrasound actuation to improve the pullout strength of orthopaedic bone screws by reducing induced cutting force and temperature rise during drilling. The results show that ultrasonic-assisted drilling leads to better cell viability and lower tissue damage compared to conventional drilling.
Article
Engineering, Mechanical
Raj Agarwal, Vishal Gupta, Jaskaran Singh, Vivek Jain
Summary: The ultrasonic-assisted drilling of bone is gaining attention in orthopedic research and applications. This study used different machine learning models to predict the cutting force and surface roughness induced by bone drilling, and compared them with statistical analysis. The results showed that ridge regression had the smallest error metrics for surface roughness prediction, while support vector regression was the most accurate model for predicting cutting force. Machine learning algorithms are preferable for predicting these parameters during bone drilling compared to statistical analysis.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2022)
Article
Automation & Control Systems
Dongxi Lv, Dong Liu, Mingda Chen, Gang Chen, Chun Yan, Imran Ali, Yingdan Zhu
Summary: By establishing a prediction model and developing relevant correlations, this study proposed a method to reduce or eliminate exit-chipping in the rotary ultrasonic drilling process, ultimately confirming the consistency through experimental validation.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Aerospace
Xiaogan Peng, Liang Li, Yinfei Yang, Guolong Zhao, Ting Zeng
Summary: The study proposed a method of rotary ultrasonic vibration assisted drilling of rocks to improve drilling efficiency and reduce bit pressure; Experimental results showed that different types of rocks have different feed rate ranges.
ADVANCES IN SPACE RESEARCH
(2021)
Article
Automation & Control Systems
Khaled Giasin, Muhammad Atif, Yuan Ma, Chulin Jiang, Ugur Koklu, Jos Sinke
Summary: This study investigated the effect of ultrasonic-assisted drilling (UAD) on GLARE laminates. The results showed that UAD resulted in a significant reduction in thrust force without affecting surface roughness metrics. Scanning electron microscopy (SEM) analysis revealed irregular and fuzzy surfaces in the holes machined using UAD.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Biomedical
Ravinder Pal Singh, Pulak Mohan Pandey, Muzamil Ahmad Mir, Asit Ranjan Mridha
Summary: The study utilized RUBD machine for bone drilling, resulting in a maximum temperature significantly lower than the critical temperature for thermal osteonecrosis, causing no bone cell damage. In contrast, conventional bone drilling recorded higher temperatures, leading to tissue burn and bone cell necrosis, demonstrating the potential of RUBD machine in orthopedic surgery.
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
(2022)
Article
Engineering, Aerospace
Zhen Li, Songmei Yuan, Jiang Ma, Jun Shen, Andre D. L. Batako
Summary: This study considers the impact-separation and vibratory lapping interactions induced by ultrasonic vibration in rotary ultrasonic drilling (RUD), and obtains the conditions to ensure the effectiveness of these interactions. The penetration depth of abrasives and the axial drilling force model for RUD are derived based on indentation fracture theory.
CHINESE JOURNAL OF AERONAUTICS
(2022)
Article
Automation & Control Systems
Yong Liu, Zitao Pan, Qiannan Li, Zhenchao Qi, Wenliang Chen
Summary: This study introduces Longitudinal Torsional Coupled Rotary Ultrasonic-Assisted Drilling (LTC-RUAD) technology to improve the drilling process of carbon fiber-reinforced polymers (CFRPs). Experimental and numerical investigations show that using LTC-RUAD can reduce the average thrust force by up to 30% and improve the delamination factor of the drilled hole.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Materials Science, Characterization & Testing
A. Shard, M. P. Garg, V. Gupta
Summary: Drilling is a common machining operation for carbon fiber composites. The rotary ultrasonic drilling method was used to reduce cutting forces and torque during the drilling of polyetherimide composite. Factors such as ultrasonic power, rotational speed, feed rate, and abrasive grit size were studied and analyzed to develop statistical models for minimizing cutting forces and torque. Results showed that rotary ultrasonic drilling reduced cutting forces by 50% compared to conventional drilling.
STRENGTH OF MATERIALS
(2023)
Review
Engineering, Biomedical
Mohd Faizal Ali Akhbar, Akmal Wani Sulong
Summary: Research has shown that improving drill bit design is a feasible and cost-effective solution to reduce bone drilling damage. This review emphasizes the importance of systemizing information on drill design and provides insights into advances in drill bit design and their impacts on bone damage.
ANNALS OF BIOMEDICAL ENGINEERING
(2021)
Article
Crystallography
Jingyuan He, Honghua Su, Ning Qian, Pengfei Xu
Summary: SiCf/SiC composite material has excellent properties including high strength, low specific gravity, and high temperature resistance, making it highly promising in the combustion chamber of rockets or aero engines. This study introduces a novel strategy for hole-making in SiCf/SiC parts, namely rotary ultrasonic-assisted drilling (RUAD) using an orderly arranged brazed diamond core drill. The results demonstrate that the proposed approach improves tool life and accuracy in hole-making, enhances drilling quality and efficiency, and reduces drilling force and torque.
Article
Engineering, Biomedical
Raj Agarwal, Jaskaran Singh, Vishal Gupta
Summary: This study proposes a predictive machine-learning model for monitoring temperature rise during surgery and compares it with the standard response surface methodology. The results show that support vector machines perform the best for predicting temperature change.
MEDICAL ENGINEERING & PHYSICS
(2022)
Article
Automation & Control Systems
Wenjian Huang, Shiyu Cao, Hao Nan Li, Qi Zhou, Chaoqun Wu, Dahu Zhu, Kejia Zhuang
Summary: This paper investigates tool wear of high-speed steel twist drills in ultrasonic vibration-assisted drilling of CFRP and compares the wear behaviors with conventional drilling based on experimental observation. The introduction of UVAD effectively reduces tool flank wear, with increased feed rate and decreased spindle speed leading to decreased tool wear. The findings may provide guidance on cutting parameter selection for extending tool life in UVAD of CFRP.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Engineering, Biomedical
Ravinder Pal Singh, Vishal Gupta, Pulak Mohan Pandey, Asit Ranjan Mridha
Summary: The strength between cortical screw and bone is crucial for the success of orthopaedic implant surgery. Excessive cutting force during drilling can lead to microcracks in bone surface and loosening of the implant. Research shows that using rotary ultrasonic bone drilling (RUBD) produces less cutting force and thinner microcracks compared to conventional surgical bone drilling (CSBD), leading to significantly higher pull-out strength of screws in human tibia.
ANNALS OF BIOMEDICAL ENGINEERING
(2021)
Article
Engineering, Mechanical
Theodosios Stergiou, Konstantinos P. Baxevanakis, Anish Roy, Vadim V. Silberschmidt
Summary: In this study, the ballistic performance and failure mechanisms of thin aluminium targets impacted by plate-like, non-axisymmetric projectiles with different geometries were experimentally investigated. The failure mechanisms of the target material were strongly influenced by the projectile's geometrical features, and the local target's response was found to be an unreliable predictor of the critical kinetic energy for penetration. To improve the prediction of ballistic performance, a nonlocal target behavior was taken into account. A heuristic approach was introduced to examine the global target response, and a physically-based semi-analytical formulation for the maximum impact-induced kinetic energy in the target was developed. The methodology was validated through finite-element simulations and achieved accurate predictions with an average absolute error below 6.5% at and above the ballistic limit.
ENGINEERING FAILURE ANALYSIS
(2023)
Article
Materials Science, Composites
Abhinav Shard, Raj Agarwal, Mohinder Pal Garg, Vishal Gupta
Summary: This study proposes a rotary ultrasonic-assisted drilling technique using diamond-impregnated tools to reduce thermal damage in composite materials. The influence of drilling parameters on temperature elevations was monitored, and the results showed that rotational speed and abrasive grit size have the highest impact. Increasing ultrasonic power during drilling can minimize temperature elevations.
JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS
(2023)
Article
Engineering, Manufacturing
James Allum, Amirpasha Moetazedian, Andy Gleadall, Niall Mitchell, Theodoros Marinopoulos, Isaac McAdam, Simin Li, Vadim V. Silberschmidt
Summary: Recent studies have found that the major cause of mechanical anisotropy in extrusion additive manufacturing is the microscale geometry, not weak inter-layer bonding. A new convention for print-path design, setting the extrusion width to be at least 250% of nozzle diameter, significantly improves mechanical performance and reduces printing time. By replacing multiple thin extrusions with a single extra-wide extrusion, the contact area and strength, strain-at-fracture, and toughness can be enhanced.
ADDITIVE MANUFACTURING
(2023)
Review
Mechanics
Yasin Karsandik, Baris Sabuncuoglu, Bora Yildirim, Vadim V. Silberschmidt
Summary: Studying the impact behavior of sandwich composite structures is crucial for the aviation industry to improve the design process and structural integrity. This review focuses on sandwich materials composed of aluminum, glass/carbon/kevlar-fiber-reinforced polymer facesheets and Nomex/Aluminum honeycomb or foam core, and analyzes previous studies to provide insights for future research.
COMPOSITE STRUCTURES
(2023)
Article
Materials Science, Composites
Tianyu Chen, Christopher M. Harvey, Kun Zhang, Simon Wang, Vadim V. Silberschmidt, Bingchen Wei
Summary: This study derives an analytical expression for the dynamic mode-I energy release rate (ERR) of a double cantilever beam (DCB) under impact, considering isotropic and orthotropic composite materials as well as DCB properties, striker mass, and initial impact velocity. The study finds that the magnitude of the ERR is determined by the initial impact velocity, which is proportional to the velocity squared, while the delamination length ratio and striker-DCB mass ratio define the time response. A dynamic factor is defined to understand the transient effect, indicating a transition in the dynamic response based on the striker mass.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Acoustics
Raj Agarwal, Vishal Gupta, Jaskaran Singh
Summary: This study aims to use ultrasound actuation to improve the pullout strength of orthopaedic bone screws by reducing induced cutting force and temperature rise during drilling. The results show that ultrasonic-assisted drilling leads to better cell viability and lower tissue damage compared to conventional drilling.
Article
Engineering, Multidisciplinary
Md Niamul Islam, Konstantinos P. Baxevanakis, Vadim V. Silberschmidt
Summary: This study investigates the viscoelastic performance of additively manufactured (AM) nylon and nylon-matrix composites reinforced with different fibre orientations. The results showed that the addition of fibres increased the storage modulus of most composites, but also led to increased porosity and poor fibre-matrix bonding. The fibre orientation and other factors affected the loss modulus of the composite structures. The quantified parameters can be used in numerical simulations to support the design and optimization of AM components.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Automation & Control Systems
Shrutika Sharma, Vishal Gupta, Deepa Mudgal, Vishal Srivastava
Summary: This study utilized machine learning algorithms to predict the tensile and flexural strengths of PDM-coated PLA bone plates. The LSTM model demonstrated the best performance, accurately predicting the strength values.
ENGINEERING APPLICATIONS OF ARTIFICIAL INTELLIGENCE
(2023)
Article
Engineering, Mechanical
Theodosios Stergiou, Konstantinos P. Baxevanakis, Anish Roy, Leonid V. Voronov, Nickolay A. Sazhenkov, Mikhail Sh. Nikhamkin, Vadim V. Silberschmidt
Summary: The ballistic performance of thin aluminium targets under varying impacts from plate-like projectiles was investigated. Different projectile geometries resulted in different defeat mechanisms and target responses. The critical velocity of penetration showed a quadratic dependence on the ratio of the projectile's equivalent diameter to the target's thickness, and the energy transfer mechanisms played a significant role in dissipating the projectile's kinetic energy.
ENGINEERING FAILURE ANALYSIS
(2023)
Article
Engineering, Biomedical
Shrutika Sharma, Deepa Mudgal, Vishal Gupta
Summary: In this study, Poly Lactic Acid based bone plates were fabricated using 3D Printing technology and were coated with biocompatible polydopamine. The findings suggest that uncoated bone plates have higher degradation rate and significant reduction in mechanical characteristics, while the coating can slow down the degradation of PLA bone plates and result in complete healing of bone fracture.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2023)
Article
Engineering, Chemical
Shrutika Sharma, Vishal Gupta, Deepa Mudgal, Vishal Srivastava
Summary: Coating 3D printed PLA bone plates with polydopamine enhances their mechanical strength. The combination of response surface methodology and machine learning allows for determination of optimal printing parameters, reducing waste, personalized bone plates, improved implant fit and functionality, and cost reduction.
POLYMER ENGINEERING AND SCIENCE
(2023)
Article
Engineering, Aerospace
Yuantian Qin, Yucheng Zhang, Vadim Silberschmidt, Luping Zhang
Summary: A new method for dynamic load location identification is proposed in this study, which utilizes the amplitude ratio or phase difference of structural dynamic response signals to extract the location information of the load. Parameter optimization using a Genetic Algorithm allows for quick and accurate identification of the excitation location.
Article
Engineering, Multidisciplinary
Minghua Cao, Konstantinos P. Baxevanakis, Vadim V. Silberschmidt
Summary: Superior mechanical and thermal properties, high wear resistance, and a competitive price have made compacted graphite iron (CGI) widely used in various industries. However, the thermal expansion caused by high-temperature environments can result in interfacial damage in CGI. This paper investigates the high-temperature performance and damage onset in graphite under thermal cycles using numerical models. The effects of graphite morphology and orientation on the response to thermal loading and the influence of boundary conditions on the damage behavior are discussed. The findings provide a better understanding of the fracture mechanisms of CGI at elevated temperatures.
MULTISCALE AND MULTIDISCIPLINARY MODELING EXPERIMENTS AND DESIGN
(2023)
Article
Engineering, Multidisciplinary
Daria A. Dolgikh, Mikhail A. Tashkinov, Vadim V. Silberschmidt
Summary: Advanced technologies are necessary to create exoprosthetic limbs for current orthopaedic challenges. The orthopaedic socket plays a crucial role in the functionality and speed of patient recovery. Additive manufacturing and numerical modelling can be used to create tailored orthopaedic sockets with properties specific to each patient's needs. The study of mechanics of structured composites is important in achieving pressure redistribution by controlling the internal architecture of the prosthesis.
MULTISCALE AND MULTIDISCIPLINARY MODELING EXPERIMENTS AND DESIGN
(2023)
Article
Acoustics
Shrutika Sharma, Vishal Gupta, Deepa Mudgal
Summary: Poly Lactic Acid (PLA) based bone plates fabricated using Fused Deposition Modeling can have improved mechanical strength by biocompatible polydopamine (PDM) coating. The effect of ultrasonic assisted coating parameters on tensile strength of coated bone plates was investigated and compared using Response Surface Methodology (RSM) and machine learning (ML) models. The gradient boosting regression (GBReg) model outperformed other models in terms of accuracy and prediction performance for predicting the tensile strength of PDM coated bone plates.
