Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Uttam K. . Chakravarty"'
Publikováno v:
AIAA Journal. 60:3194-3205
Autor:
Gazi Abu Raihan, Uttam K. Chakravarty
Publikováno v:
Volume 3: Advanced Materials: Design, Processing, Characterization and Applications; Advances in Aerospace Technology.
In this study, a computational fluid dynamics (CFD) model is developed to investigate the thermal-mechanical process in additive friction stir deposition (AFSD), a novel additive manufacturing (AM) process allowing site-specific deposition. Material
Autor:
Pratik Sarker, Uttam K. . Chakravarty
Publikováno v:
Volume 3: Advanced Materials: Design, Processing, Characterization and Applications; Advances in Aerospace Technology.
The use of rotating beam-like structures is very common in engineering systems including power generation machines, automotive systems, aircraft structures, energy harvesting systems, and many more. The dynamic response analysis of these systems is o
Publikováno v:
Volume 9: Mechanics of Solids, Structures, and Fluids; Micro- and Nano-Systems Engineering and Packaging; Safety Engineering, Risk, and Reliability Analysis; Research Posters.
Naturally available materials are inadequate in many advanced applications, including space. Therefore, functional materials answer the requirement of operation-specific customized characteristics. Soft matter-based metamaterials exhibit various desi
Publikováno v:
Volume 9: Mechanics of Solids, Structures, and Fluids; Micro- and Nano-Systems Engineering and Packaging; Safety Engineering, Risk, and Reliability Analysis; Research Posters.
Dielectric elastomer membrane(s) are smart material(s) that produce large actuation strains. They are also a class of electroactive polymers that function as actuators and sensors to convert and sense electrical signals to mechanical deformation and
Autor:
Pratik Sarker, Uttam K. Chakravarty
Publikováno v:
Mathematics and Computers in Simulation. 170:115-142
Beam vibrations are encountered in real life and are important to investigate for proper monitoring of the structural health. Closed-form solutions to one-dimensional beam vibration problems are not always available, especially, if the governing equa
Publikováno v:
Volume 4: Advances in Aerospace Technology.
The purpose of this study is to investigate the thermal and mechanical properties of L-PBF processed specimens at room and elevated temperatures while varying the loading conditions. The study covers finite element (FE) modeling of the tensile and fa
Publikováno v:
Volume 4: Advances in Aerospace Technology.
This paper presents a supervised machine learning (ML) model to predict the melt-pool geometries of Ti-6Al-4V alloy in the laser powder-bed fusion (L-PBF) process. The ML model is developed based on the normalized values of the five key features (i.e
Autor:
Pratik Sarker, Uttam K. Chakravarty
Publikováno v:
Volume 4: Advances in Aerospace Technology.
The dielectric elastomer material is a category of electroactive polymers which produces large deformation under applied voltage. This property made them much promising as smart materials that can rapidly adapt to changes in environmental conditions
Publikováno v:
Volume 4: Advances in Aerospace Technology.
Vortices are present in many engineering applications and are systematically generated by lifting surfaces. The vortex characteristics and the wake surrounding a helicopter rotor blade play an important role because they affect the flow physics surro