Full-Field Measurement of the Taylor-Quinney Coefficient in Tension Tests of Ti-6Al-4V, Aluminum 2024-T351, and Inconel 718 at Various Strain Rates

Smith, Jared

doi:10.21949/a3g4-pd12

i

Full-Field Measurement of the Taylor-Quinney Coefficient in Tension Tests of Ti-6Al-4V, Aluminum 2024-T351, and Inconel 718 at Various Strain Rates

2020-10-01
By Smith, Jared

File Language:

English

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Creators:

Smith, Jared
Corporate Creators:

Ohio State University
Corporate Contributors:

United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research and Development
Subject/TRT Terms:

Aluminum 2024-T351, Ti-6Al-4V Digital Image Correlation Hopkinson Bar Inconel 718 Infrared Detectors Localization Plastics Split- Strain Hardening Taylor-Quinney Thermal Softening Thermoplastic Materials
Publication/ Report Number:

DOT/FAA/TCTT-20/40
DOI:

https://doi.org/10.21949/a3g4-pd12
Resource Type:

Tech Report
Geographical Coverage:

United States
Contracting Officer:

Cordasco, Daniel
Corporate Publisher:

United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center
Abstract:

During plastic deformation of metals only a portion of the plastic work done on the material is expended to modify its physical properties while the remaining energy is converted to heat. The associated rise in temperature during deformation can affect the mechanical response of the material (e.g. strain hardening, thermal softening, precipitating localizations, etc.). At low strain rates the conditions are virtually isothermal as there is sufficient time for the heat to transfer to the surroundings. At high strain rates the temperature in the metal can increase significantly and the conditions can become nearly adiabatic as the heat cannot dissipate to the surroundings. The portion of plastic work that is converted to heat is determined by the Taylor-Quinney coefficient (β) and is quantified by measuring both the plastic work and temperature rise in a material during deformation. By including the Taylor- Quinney coefficient, complex material models can more accurately model the thermoplastic deformation of the material over a wide range of strains, strain rates, and temperatures.
Format:

PDF
Funding:

16-G-007
Collection(s):

FAA William J. Hughes Technical Center for Advanced Aerospace
Main Document Checksum:

urn:sha-512:e21070ac8552a3ac19efaf564cc0462309705a90bec08464c1d08097dea059130579ec1f50813ef6371871de94883fe322f2957785c39696432d76fd4512b494
Download URL:

https://rosap.ntl.bts.gov/view/dot/89370/dot_89370_DS1.pdf
File Type:

[PDF - 8.25 MB ]

File Language:

English

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