This project aims to create a general evaluation toolkit for traditional nanoindentation data. While similar toolkits have been developed in the past, such as NIGET, they lack many important and relevant methods which we plan to implement. This project plans to implement three less accessible data analysis methods: Nix-Gao’s relation of hardness and depth, Dao et al.’s evaluation of stress-strain curves, and Chen-Bull’s “Relation between the ratio of elastic work to the total work of indentation and the ratio of hardness to Young’s modulus for a perfect conical tip.” Once complete, this toolkit will allow users to calculate parameters such as energy density as fracture toughness for ductile materials, hardness in the limit of infinite depth, and inversely estimated stress-strain curves from single indentation tests. How this project is carried out is split into two components: data science and materials science. The data science component is responsible for implementing algorithms, methods, and other technical pieces into the kit. More specifics can be found in a separate report located in Worcester Polytechnic Institute’s Major Qualifying Project archive, as a 2022 MQP titled UNiT: A Universal Toolkit for Metallic Nanoindentation Data Analysis and Mechanical Properties Exploration by Aaron Krueger and Eric Schmid, in the Computer Science department. The materials science component of this project is highlighted in this paper. This portion evaluates and verifies the data science methods, and nanoindentation data is gathered. Then, extensive tests are conducted using this nanoindentation data, which is related to and compared with the algorithms used in the data science segment.

• This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.

Creator

• Barron, Katelyn

Subject

• Computing
• Industry
• Project-Based Learning
• Innovation

Publisher

• Worcester Polytechnic Institute

Identifier

• E-project-030222-194922
• 48926

Keyword

• Mechanical Engineering
• Nanoindentation
• Toolkit
• Validation
• Material Properties
• Materials Science

Advisor

• Neamtu, Rodica
• Cote, Danielle

Year

• 2022

UN Sustainable Development Goals

• 9 - Industry, Innovation and Infrastructure

Date created

• 2022-03-02

Resource type

• Major Qualifying Project

Major

• Mechanical Engineering

Rights statement

• In Copyright