Index Catalog // ScholarsArchive@OSU

A Novel Progressive Damage and Failure Analysis Model for Matrix Compression using 3D Continuum Damage Mechanics and Smoothed Particle Hydrodynamics

Creator:: Solanki, Satish
Abstract:: The matrix compression behavior is assumed similar to tension, and many material's elastic and damage parameters are considered equal in tension and compression but experimentally not explored. This assumption leads to unrealistic or very far from the actual behavior of the matrix under compression. Moreover, the pre-existing implemented Abaqus models...
Resource Type:: Masters Thesis
Full Text:: and enthralling. I want to thank Dr. Stefan Lee for giving me a unique opportunity to work with him

Discovery, Processing and Characterization of New Copper and Hafnium-based Metallic Glass Alloys

Creator:: Saini, Jaskaran S.
Abstract:: Metallic glasses (MGs), also called amorphous metals, are metals or metallic alloys trapped in a disordered glassy state. Their amorphous nature and absence of features such as crystal lattices and defects (dislocations, grain boundaries etc.) endows them with a host of properties that far surpass those of common crystalline materials....
Resource Type:: Dissertation
Full Text:: like to acknowledge Isshu Lee for being such a great friend, helping me with job search, reviewing my

Oxide dispersion strengthened 304L stainless steel produced by ink jetting and laser powder bed fusion

Creator:: Paul, Brian K., Lee, Kijoon, He, Yujuan, Ghayoor, Milad, Chang, Chih-hung, and Pasebani, Somayeh
Abstract:: This paper discusses the fundamentals of a novel hybrid method to synthesize oxide dispersion strengthened (ODS) 304 L stainless steel (SS) alloy using a modified laser powder bed fusion (LPBF) machine. Previously, ODS metal matrix composites have been produced by LPBF via ball-milling, which is expensive to scale. Here, we selectively...
Resource Type:: Article
Full Text:: Annals 47/2:525–540. [2] Zhao C, Fezzaa K, Cunningham RW, Wen H, De Carlo F, Chen L, et al. Real-time

Mining Temporal Patterns for Prediction: A Mixed-Integer Programming Approach

Creator:: Mansourifard, Farzaneh
Abstract:: In the past two decades, the advancement in data collection and storage have led to the accumulation of complex datasets. Consequently, various industries have sought data-driven solutions to predict and detect anomalies. Temporal patterns have emerged as potential features in prediction models that could improve the performance of the identification...
Resource Type:: Masters Thesis

Tracking of Melt Pool Motion Using Numerical Analysis of Laser Powder Bed Fusion

Creator:: Cox, Bryce
Abstract:: Laser Powder Bed Fusion (LPBF) is a process commonly used to create additively manufactured metal parts. The flexibility and complexity allowed by the LPBF process provides opportunity for significant advancement in multiple industries as parts can be customized in shape and function for specific needs. These benefits can be compounded...
Resource Type:: Dissertation
Full Text:: validation Lee and Zhang [66] 3 Siao and Wen [56] 5 Tran and Lo [23] 6 Antony et al [26] 10 Khairallah

Fracture toughness of void-site-filled skutterudites

Creator:: Eilertsen, James S.
Abstract:: Thermoelectric materials are playing an increasingly significant role in the global effort to develop sustainable energy technologies. Consequently, the demand for materials with greater thermoelectric efficiency has stimulated the development of state-of-the-art interstitially doped skutterudite-based materials. However, since intermetallics are often embrittled by interstitial substitution, optimal skutterudite-based device design, manufacture,...
Resource Type:: Masters Thesis
Full Text:: Park, Ohio, 2008. 12. Ruan, Z.-w.; Liu, L.-s.; Zhai, P.-c.; Wen, P.-f.; Zhang, Q.-j., Low-Cycle

Influences of Replacing Cr with Mo in Fe25Co25Ni25Cr25-XMoX High Entropy Alloy Series on the Microstructure and Mechanical Properties

Creator:: Xu, Yifan
Abstract:: Fe25Co25Ni25Cr25-XMoX High Entropy Alloys were fabricated in mini arc-melter and then cast into 4mm diameter cylinders by injection casting technique and 1cm diameter cylinders by water quenching technique. Heat transfer modeling during solidification of FeCoNiCr HEA was simulated. Combining X-Ray Diffraction, Optical Microscopy, Scanning Electron Microscope, Energy Dispersive X-ray analysis,...
Resource Type:: Masters Thesis

Characterization of Heterostructured Nanocrystalline Metals Processed by High-Pressure Torsion

Creator:: Han, Jae-Kyung
Abstract:: High-pressure torsion (HPT) is an effective severe plastic deformation (SPD) technique to produce bulk nanostructured materials (BNMs). These BNMs often show a combination of exceptional mechanical and physical properties. Processing of single metals and alloys by HPT has been understood that the homogenous microstructures can be achieved throughout the disk...
Resource Type:: Dissertation
Full Text:: nanoindentation experiments. Ms. Xiaojing Liu and Mr. Isshu Lee have helped in data analysis. Prof. Stanislav

Determination of Mass Flow Rate through Plain Mesh Wick and Nano- Structured Mesh Wick for the Design of Thermal Compressor Systems

Creator:: Uwaoma, Ifeanyi A.
Abstract:: Wicking action refers to the movement of a liquid through a porous or a structured surface via capillary action. This phenomenon is affected by surface geometry, such as the wick thickness and pore size of the wick, as well as fluid properties, such as viscosity and surface tension of the...
Resource Type:: Masters Thesis
Full Text:: determines if shapes formed are needle-like (Yun, 1992), rod-like (Wen, 2003; Tang, 2006), or flower-like

Additive Manufacturing of FeCrCoCuNi High Entropy Alloy via Laser Powder Bed Fusion and Nickel Aluminum Bronze via Laser Directed Energy Deposition

Creator:: Doyle, Ryan P.
Abstract:: High Entropy Alloys (HEA) exhibit unusual properties and are gaining interest as new materials for challenging applications in the aerospace, hypersonic and medical fields. The application of HEAs have been limited by the development of powder production at scale. A recently developed process of plasma spheroidization by 6K, inc. has...
Resource Type:: Masters Thesis
Full Text:: alloys.J. Alloys Compd.2019,811, 152000 [38] Jo, Y.H.; Doh, K.Y.; Kim, D.G.; Lee, K.; Kim, D.W.; Sung, H

ScholarsArchive@OSU

A Novel Progressive Damage and Failure Analysis Model for Matrix Compression using 3D Continuum Damage Mechanics and Smoothed Particle Hydrodynamics

Discovery, Processing and Characterization of New Copper and Hafnium-based Metallic Glass Alloys

Oxide dispersion strengthened 304L stainless steel produced by ink jetting and laser powder bed fusion

Mining Temporal Patterns for Prediction: A Mixed-Integer Programming Approach

Tracking of Melt Pool Motion Using Numerical Analysis of Laser Powder Bed Fusion

Fracture toughness of void-site-filled skutterudites

Influences of Replacing Cr with Mo in Fe25Co25Ni25Cr25-XMoX High Entropy Alloy Series on the Microstructure and Mechanical Properties

Characterization of Heterostructured Nanocrystalline Metals Processed by High-Pressure Torsion

Determination of Mass Flow Rate through Plain Mesh Wick and Nano- Structured Mesh Wick for the Design of Thermal Compressor Systems

Additive Manufacturing of FeCrCoCuNi High Entropy Alloy via Laser Powder Bed Fusion and Nickel Aluminum Bronze via Laser Directed Energy Deposition

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