Search results
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Title
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Additive manufacturing of PVDF-TrFE piezoelectric and pyroelectric sensors
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Author
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Marandi, Rafi
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Date Created
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2023
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Subjects--Topical
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Mechanical engineering
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Description
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Additive manufacturing, specifically Fused Deposition Modeling (FDM) method, has emerged as a promising technique for rapid prototyping. Using FDM, complex geometries can be created using precise layer by layer deposition of material. Among the ad...
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Title
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COMBINED DEM-FEM MODELING OF SHOT PEENING PROCESS
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Author
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Bobba, Dhanooj
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Date Created
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2018
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Subjects--Topical
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Mechanical engineering
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Description
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Shot peening is a commonly used technique for improving the fatigue life of machine components by inducing compressive residual stresses in the surface layers. This process involves plastically deforming the surface layers by impacting the surface...
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Title
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Discrete Element Simulations of Powder Spreading in Additive Manufacturing
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Author
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Amrapurkar, Parth
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Date Created
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2020
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Subjects--Topical
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Mechanical engineering, Engineering, Physics
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Description
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Powder spreading plays a critical role in the quality of parts produced with selective laser sintering (SLS). Some of the important parameters that influence the quality of the powder bed are the powder particle size and distribution, blade speed,...
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Title
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FINITE ELEMENT STUDIES OF ORTHOGONAL MACHINING OF AISI 1045 STEEL
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Author
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Thekdi, Parth
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Date Created
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2019
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Subjects--Topical
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Mechanical engineering, Engineering
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Description
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In this work, a two-dimensional finite element model of orthogonal machining ofAISI 1045 steel is developed using the commercial non-linear finite element packageABAQUS. The material behavior is described using the Johnson-Cook constitutivelaw. Fu...
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Title
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FINITE ELEMENT STUDIES OF ORTHOGONAL MACHINING OF ALUMINUM ALLOY A2024-T351
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Author
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Patel, Jaimeen
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Date Created
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2018
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Subjects--Topical
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Mechanical engineering, Mechanics
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Description
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In this work, a new machining model using the commercial finite element software ABAQUS is developed. The model regards material separation, chip serration and breakage as ductile fracture processes where energy is required to form new surfaces. T...
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Title
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MICROSTRUCTURAL MODELING DURING MULTI-PASS ROLLING OF A NICKEL-BASE SUPERALLOY
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Author
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Subramanian, Kannan
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Date Created
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2009
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Subjects--Topical
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Mechanical engineering, Materials science
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Description
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Microstructure present at the end of rolling and cooling operations controls the product properties. Therefore, control of grain size is an important characteristic in any hot-working. The narrow temperature range for hot working of Alloy 718 make...
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Title
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MODELING OF DRUG RELEASE KINETICS FROM POROUS CERAMIC DISKS
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Author
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Joshi, Apurva
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Date Created
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2014
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Subjects--Topical
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Mechanical engineering
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Description
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The use of biomaterials as drug delivery systems (DDS) eliminates the adverse side effects of systemic drug administration. Silica-based bioceramics have been widely studied as DDS and demonstrated a unique ability for controlled drug release loca...
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Title
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Machining and Chatter Avoidance: Predictive Analytics and Uncertainty Analysis
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Author
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Hashemitaheri, Maryam
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Date Created
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2023
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Subjects--Topical
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Mechanical engineering
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Description
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The main focus of this study is on chatter avoidance during machining. Self-excited regenerative vibration or "chatter" is a significant obstacle in machining which results in poor surface quality and damage to the tool, workpiece, and even machin...
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Title
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ON THE USE OF SMOOTHED PARTICLE HYDRODYNAMICS TO MODEL ORTHOGONAL MACHINING
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Author
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Avachat, Chinmay
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Date Created
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2014
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Subjects--Topical
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Mechanical engineering
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Description
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Modeling machining processes with conventional finite element methods (FEM) is challenging due to the severe deformations that occur during machining, complex frictional conditions that exist between the cutting tool and the workpiece, and the pos...
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Title
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Thermomechanical Modeling and Analysis of Precision Glass Molding Process
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Author
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Bobba, Dhanooj
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Date Created
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2023
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Subjects--Topical
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Mechanical engineering
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Description
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The tremendous development in digital technology in the last few decades has increased the demand for ultra-precision optical components with enhanced optical performance, such as aspherical or freeform lenses. Typically, lenses made of polymers h...