Search results | J. Murrey Atkins Library

Title: A COMBINED FINITE ELEMENT AND MACHINE LEARNING APPROACH FOR PREDICTING SPECIFIC CUTTING FORCES AND MAXIMUM TOOL TEMPERATURES DURING ORTHOGONAL MACHINING
Author: Mekarthy, Sai Manish Reddy
Date Created: 2019
Subjects--Topical: Mechanical engineering, Engineering, Computer science
Description: In machining, specific cutting forces and temperature fields in the shear zones are of primary interest. These quantities depend on many machining parameters, such as the cutting speed, rake angle, tool-tip radius, uncut chip thickness, etc. The f...

Title: A Comparison of Machine Learning Algorithms for The Prediction of Thermal-Expansion of Spherical Shells
Author: Bumgarner, Kolby
Date Created: 2022
Subjects--Topical: Mechanical engineering
Description: Machine Learning (ML) applications in material science is an active area of research due to its accurate predictive capabilities while also being generalizable. Experimentation where a physical model of the problem is constructed has been widely u...

Title: A Discrete Element Study of the Uniaxial Compressive Response of Plain Concrete using the JCFPM Constitutive Model
Author: Joshi, Anay
Date Created: 2018
Subjects--Topical: Mechanical engineering
Description: The standard bonded-particle models available in many discrete element method (DEM) codes are known to predict unrealistically low values for the ratio of ultimate compressive strength (UCS) to tensile strength (UTS) for concrete. To correct this,...

Title: A discrete element approach to predicting the uniaxial compressive response of plain concrete
Author: Tannu, Nakul
Date Created: 2017
Subjects--Topical: Mechanical engineering
Description: Discrete element method (DEM) has become the method of choice for modeling the mechanical response of materials with granular structure. The method consists of representing the material as a collection of particles that interact with each other by...

Title: An Experimental and Computational Study of the Effect of Bioceramic Porosity on Drug Release Kinetics
Author: Upadhyay, Rahul
Date Created: 2016
Subjects--Topical: Mechanical engineering
Description: Porous bioceramics have been explored for drug delivery applications. The goal is to design a material that can provide controlled release of therapeutic doses of the drug for a duration long enough to cause complete healing. For drug carriers, th...

Title: COMBINED DEM-FEM MODELING OF SHOT PEENING PROCESS
Author: Bobba, Dhanooj
Date Created: 2018
Subjects--Topical: Mechanical engineering
Description: 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...

Title: COMPUTATIONAL ANALYSIS OF THE RESPONSE OF BURIED STEEL PIPELINES DUE TO SUDDEN GROUND MOTION
Author: Gawande, Kshitij
Date Created: 2015
Subjects--Topical: Mechanical engineering
Description: Pipeline systems are the primary means by which natural gas and liquid fuels are distributed to delivery points from pumping and compressor stations. Many of these pipelines are buried underground and consequently are susceptible to sudden ground ...

Title: Computational Studies of the Effect of Moisture on Powder Bed Quality in Metal Additive Manufacturing
Author: Chakraborty, Arghajit
Date Created: 2022
Subjects--Topical: Mechanical engineering
Description: Metal additive manufacturing techniques such as SLM, and DMLS, based on the powder bed fusion (PBF) process, rely on a high-quality powder bed to minimize the formation of defects in the manufactured part. Various parameters like blade velocity, t...

Title: Discrete Element Simulations of Powder Spreading in Additive Manufacturing
Author: Amrapurkar, Parth
Date Created: 2020
Subjects--Topical: Mechanical engineering, Engineering, Physics
Description: 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,...

Title: Effective Thermal Conductivity of Porous Materials using Maxwell's Methodology and Image-Based Finite Element Approach
Author: Balutkar, Vrushank Deepak
Date Created: 2020
Subjects--Topical: Mechanical engineering
Description: The steady-state thermal response of solid materials is controlled by their thermal conductivity. For porous materials, the local thermal conductivity is difficult to use in the characterization of the overall thermal response and therefore, often...

Title: FINITE ELEMENT STUDIES OF ORTHOGONAL MACHINING OF AISI 1045 STEEL
Author: Thekdi, Parth
Date Created: 2019
Subjects--Topical: Mechanical engineering, Engineering
Description: 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...

Title: FINITE ELEMENT STUDIES OF ORTHOGONAL MACHINING OF ALUMINUM ALLOY A2024-T351
Author: Patel, Jaimeen
Date Created: 2018
Subjects--Topical: Mechanical engineering, Mechanics
Description: 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...

Title: MICROSTRUCTURAL MODELING DURING MULTI-PASS ROLLING OF A NICKEL-BASE SUPERALLOY
Author: Subramanian, Kannan
Date Created: 2009
Subjects--Topical: Mechanical engineering, Materials science
Description: 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...

Title: MODELING OF DRUG RELEASE KINETICS FROM POROUS CERAMIC DISKS
Author: Joshi, Apurva
Date Created: 2014
Subjects--Topical: Mechanical engineering
Description: 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...

Title: ON THE USE AND LIMITATIONS OF FLASH THERMOGRAPHY TECHNIQUES FOR DETECTING DEFECTS IN VARIOUS METALLIC MATERIALS
Author: Patel, Kevin
Date Created: 2019
Subjects--Topical: Mechanical engineering, Engineering
Description: In this work, the predictive capabilities of Flash Thermography, a non-destructive testing method, in detecting the presence of defects in metallic parts are investigated using the Finite Element Method (FEM). Finite-element simulations of flash t...

Title: ON THE USE OF SMOOTHED PARTICLE HYDRODYNAMICS TO MODEL ORTHOGONAL MACHINING
Author: Avachat, Chinmay
Date Created: 2014
Subjects--Topical: Mechanical engineering
Description: 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...