A5100715171- Welding Techniques and Residual Stresses
- Additive Manufacturing Materials and Processes
- Advanced Welding Techniques Analysis
- Surface Treatment and Residual Stress
- Mechanical Behavior of Composites
- Fatigue and fracture mechanics
- Additive Manufacturing and 3D Printing Technologies
- Titanium Alloys Microstructure and Properties
- Natural Fiber Reinforced Composites
- Engineering Structural Analysis Methods
- High-Temperature Coating Behaviors
- Erosion and Abrasive Machining
- Structural Load-Bearing Analysis
- Laser Material Processing Techniques
- Advanced materials and composites
- High Temperature Alloys and Creep
- AI in cancer detection
- Textile materials and evaluations
- Fiber-reinforced polymer composites
- Cellular and Composite Structures
- Antenna Design and Optimization
- Generative Adversarial Networks and Image Synthesis
- Nuclear Materials and Properties
- Aluminum Alloy Microstructure Properties
- Rheology and Fluid Dynamics Studies
Coventry University
2015-2024
Maine Medical Center
2024
University of Siegen
2020-2023
The Open University
2015-2016
Hong Kong Metropolitan University
2014-2015
King Abdulaziz University
2014
Tenaga Nasional Berhad (Malaysia)
2008
Wire + arc additive manufacturing (WAAM) is a modern process that has opened new possibilities for rapid builds and reductions in material wastage. This paper explores residual stress WAAM Ti-6Al-4V walls built using three different deposition strategies: single bead, parallel path, oscillation path. The effect of interlayer hammer peening temperature was investigated the bead walls. We also examined compact-tension (C(T)) coupons extracted from large (walls) with crack orientation either or...
ABSTRACT It is observed that the short fatigue cracks grow faster than long at same nominal driving force and even stress intensity factor range below threshold value for in titanium alloy materials. The anomalous behaviours of have a great influence on accurate life prediction submersible pressure hulls. Based unified method developed authors' group, modified model crack propagation proposed this paper. elastic–plastic behaviour vicinity tips considered model. shows rate very determined by...
Modelling the mechanical mixing occurring at interface of a linear friction weld (LFW) is complex, making it difficult to study development residual stresses within real engineering workpieces. To address this, sequentially-coupled numerical model Ti-6Al-4V LFW was developed, bypassing modelling oscillations by applying heat and sequentially removing rows elements account for burn-off. Increasing rubbing velocity found numerically increase peak stress while narrowing distribution. Only small...
Abstract Development of residual stress high magnitude, to the extent material yield strength and in some cases higher than strength, is one major challenges faced by components produced using wire arc additive manufacturing (WAAM). This study focuses on aluminum alloy 5183 with respect formation distribution WAAM builds. Residual stresses were determined contour method. The effects processing conditions, such as substrate thickness, interlayer temperature, deposit height magnitude...
This paper presents a study on residual stress measurement in wire-arc additively manufactured (WAAM) titanium samples using the non-destructive method of phased array ultrasonics. The contour (CM) was used for verification ultrasonic results. allowed comparison methods to understand effects distribution (RS) within Ti-6Al-4V and effectiveness From results experiments, data were found be good agreement with CM displayed similar distributions samples. individual elements also compared an...
This study aims to demonstrate the capability of digital image correlation (DIC) technique for evaluating full-field residual stresses in wire and arc additive manufactured (WAAM) components. Investigations were carried out on WAAM steel parts (wall deposited a substrate) with two different wall heights: 24 mm 48 mm. Mild solid AWS ER70S-6 was used print walls substrates that rigidly clamped H-profiles. DIC monitor bending deformation during unclamping from H-profiles, calculated strain...
Peristaltic flow of non-Newtonian fluid in a symmetric channel with partial slip effect is examined. The behavior characterized by the constitutive equations Powell-Eyring fluid. motion induced sinusoidal wave traveling along flexible walls channel. analyzed frame reference moving velocity wave. governing are solved adopting lubrication approach. Series solutions for stream function and axial pressure gradient obtained. Impact other emerging parameters plotted graphically.
Woven fabric thermoplastic composites possess high specific strength and stiffness along with thermoformability. To utilize the full potential of these materials to achieve better crash-safe designs in automotive structural parts, their crash behavior must be predicted accurately. For reliable simulations, strain rate-dependent material data equally capable modeling are required. In this study, quasi-static high-speed tests carried out measure tensile in-plane shear properties. A continuum...
Abstract Background Laser powder bed fusion (L-PBF) additive manufacturing (AM) is used for building metallic parts layer-by-layer and often generates non-uniform thermal gradients between layers during fabrication, resulting in the development of residual stresses when are cooled down. Objective The impact modulated laser L-PBF process on Inconel 718 (IN718) material was investigated. build directions stress also determined. Methods contour method employed to measure full-field component...
Prostate Cancer remains a prevalent health concern, emphasizing the critical need for early diagnosis and precise treatment strategies to mitigate mortality rates. Accurate prediction of cancer grade is paramount timely interventions. This paper introduces an approach prostate grading, framing it as classification problem. Leveraging ResNet models on multi-scale patch-level digital pathology Diagset dataset, proposed method demonstrates notable success, achieving accuracy 0.999 in...
Residual stresses were characterised in a wire-feed additively manufactured titanium alloy component. A numerical simulation based on the inherent strain method was used to model residual arising from manufacturing process. The contour experimentally determine stress field. High tensile seen at and around interface of substrate deposited metal. Compressive present top deposit. satisfactory correlation achieved between results method, except for location root effect pre-heating sample...
Abstract Woven fabric thermoplastic composites possess high specific strength and stiffness along with thermoformability. To utilize the full potential of these materials to achieve better crash-safe designs in automotive structural parts, measurement non-linear shear behavior its material modeling for FEM simulations is required. The standard testing method was used measure pure woven composites. These results were compared presence normal stresses fiber direction. Tensile compression...
During the last decades, environmental concerns and limited resources have set focus of research on lightweight, mechanically high-performing structures for transportation industry, in order to reduce fuel consumptions CO 2 emissions. Friction Stir Joining (FSJ), as a variant Welding (FSW), is an innovative friction-based joining technique metal-composite hybrid structures. plasticized state below melting temperature metal leads comparatively small heat-affected zone, so that only minor...