Development of a Titanium Alloy Ti-6Al-4V Generalized Yield Surface Material Model Used in LS-DYNA
-
2025-06-01
Details:
-
Creators:
-
Corporate Creators:
-
Corporate Contributors:
-
Subject/TRT Terms:
-
Publication/ Report Number:
-
DOI:
-
Resource Type:
-
Geographical Coverage:
-
Contracting Officer:
-
Corporate Publisher:
-
Abstract:This thesis is part of a collaborative effort involving George Mason University (GMU), The Ohio State University (OSU), the National Aeronautics and Space Administration (NASA) Glenn Research Center (GRC), and the Federal Aviation Administration (FAA) under the Aircraft Catastrophic Failure Prevention Program (ACFPP). The primary objective of this research is to address the challenge of uncontained turbine engine failure by developing material models in LS-DYNA that can accurately predict fragment impact and penetration of engine and aircraft structure in the event of failure. The focus of this work is material characterization of Ti-6Al-4V manufactured from a 0.5” thick plate, a material frequently used in the fan and compressor section of aircraft turbines. This study aims to create a Ti-6Al-4V model using the *MAT_224_GYS material model in the LS-DYNA explicit finite element analysis software. Coupon level test data was used to create strain rate and temperature dependent plasticity curves in both tension and compression. A triaxiality and Lode parameter dependent failure surface was also generated from an extensive series of fracture test specimens.
-
Format:
-
Funding:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type: