A5034075106- Fiber-reinforced polymer composites
- Mechanical Behavior of Composites
- Advanced MEMS and NEMS Technologies
- Piezoelectric Actuators and Control
- Composite Material Mechanics
- Advanced machining processes and optimization
- Force Microscopy Techniques and Applications
- Hygrothermal properties of building materials
- Wood Treatment and Properties
- Metal Forming Simulation Techniques
- Structural Health Monitoring Techniques
- Fluid Dynamics and Turbulent Flows
- Fatigue and fracture mechanics
- Particle Dynamics in Fluid Flows
- Advanced Sensor and Energy Harvesting Materials
- Epoxy Resin Curing Processes
- Biomimetic flight and propulsion mechanisms
- Ultrasonics and Acoustic Wave Propagation
- Adhesion, Friction, and Surface Interactions
- Graphene research and applications
- Mechanical stress and fatigue analysis
- Polymer composites and self-healing
- Advanced Fiber Optic Sensors
- Textile materials and evaluations
- Non-Destructive Testing Techniques
Tampere University
2020-2024
VTT Technical Research Centre of Finland
2024
Synergy University Dubai
2016-2018
Manipal Academy of Higher Education
2016-2018
National Institute of Technology Karnataka
2018
The microbond (MB) test is the most widely adopted micromechanical to characterize fibre matrix interfaces but typically lacks reliability and output for determining multi-parameter interface models. In current research, MB enhanced by incorporating Fibre Bragg Grating (FBG) sensors local strain monitoring. Strain-force data used analyse validate type paramter values of a cohesive zone modelling (CZM) basis in three-dimensional damage model. For prepared epoxy resin droplets, that are as...
Single fibre micro-composite tests are among the most reliable methods for characterising fibre–matrix interphase. To improve their versatility, this study utilises a well-characterised microbond setup in cyclic loading case to create so-called micro-fatigue test. The surface of fibres is controlled two distinctive interphase types: clean glass surface, and model sizing. sizing improved average interfacial performance all tested cases, but role was prominent fatigue lifetime microdroplet...
Abstract The accurate determination of interfacial strength in composites poses a significant challenge, critical factor yet often complex due to the multitude unknowns that affect microbond (MB) test. This complexity arises not only from different individual parameters, but also combined effects these parameters interdepending with each other. study presents thorough analysis MB test, carried out through numerous finite element simulations take into account wide range parameters. was...
The microbond (MB) test, which is primarily used to characterise the interface of fibrous composites, requires a large number droplets be tested and analysed in order make reliable conclusion about fibre–droplet interface. conventional method depositing single on fibre performing MB test can improved by multiple using Rayleigh plateau instability phenomenon (an additional film formed between droplets). Although latter has significant advantages higher statistical reliability, role affecting...
Especially the applications of fibrous composites in miniature products, dental and other medical require accurate data microscale mechanics. The characterization adhesion between single filament picoliter-scale polymer matrix usually relies on experiments using so-called microbond (MB) testing. traditional MB test systems provide unitary output (i.e., converted force) which is enigmatic resolving fracture parameters multi-mode interface cracks. As a fundamental basis, momentary reaction...
This paper aims at the design considerations in of a 2 DOF compliant microgripper. Aiming micro assembly MEMS components, microgripper forms very important tool optical switches to grasp and rotate fibres comprising system. A with is designed different types flexural hinges like circular, rectangular corner fillet along variations various parameters. The analysed for high resilience materials test its compliance capability. results prove that Corner hinge provides maximum displacement...
Amplified Piezoelectric Actuator (APA), is a mechanical amplified preloaded stack actuator increasingly popular in micro actuation. Subsequently, piezoelectric actuators have been utilized often microgripping applications due to its large force and precise displacement. This paper presents the experimental testing results of Actuators (APA) APA 50SX, 60S 120S which can be used for actuation 2-DOF compliant microgripper. In this work static measurement arrangement has setup measure get...
This data article provides an extensive dataset obtained from finite element (FE) simulations of microbond (MB) tests. The cover a wide range structural effects and artifacts that influence the results MB A total 432 were performed,taking into account various factors such as blade geometry position, plastic behaviour thermoset thermoplastic droplets, material properties fibres, residual stresses, fracture modes at interfaces, FE mesh sensitivity analysis. Each simulation consists reaction...
This data article provides useful information often required for numerical modeling of the so-called microbond tests. It includes experimental and simulation testing using Fibre Bragg Grating (FBG) fibres optical strains. Microbond was performed on five different droplets varying embedded length diameter to collect data. Finite element carried out modelling validated, by two variables force strain, The output fitted models is given also visualized via graphs force-strain derivative curves....
This data article provides an extensive dataset derived from finite element (FE) simulations of microbond tests (MB). The explore a broad range structural effects and artifacts that influence the outcome MB test. A total 432 were performed considering various which include geometry position blade, plastic behaviour thermoset thermoplastic droplets, fibre material, residual stresses, fracture mode at interface, FE mesh sensitivity. Every simulation consists blade reaction force, displacement,...
Structural damage is an important criterion that can affect the system performance and degrade its ability from original condition. When it comes to aircraft, wings of aircraft prone more damages compared body since provide overall structure stability aircraft. It thus mandatory monitor surface wing periodically in search new or changes occurring structures. The term Health Monitoring systems introduced these precepts, are useful identifying aircrafts, space crafts mechanical infrastructures...