Development of an Inconel-718 LS-DYNA® Material Model and *MAT_224 Input Parameters

Details

• Creators:
  Dolci, Stefano ; Carney, Kelly ; Wang, Leyu ; Du Bois, Paul ; Kan, Cing-Dao
• Corporate Creators:
  George Mason University, Center for Collision Safety and Analysis
• Corporate Contributors:
  United States. Department of Transportation. Federal Aviation Administration. Office of Aviation Research and Development
• Subject/TRT Terms:
  • Computer models
  • Shear properties
  • Engine compartments
  • Aviation
  • Materials tests Material Model Development
  • Inconel 718
  • Adiabatic Shear Band
  • LS-DYNA®
  • *MAT_224, Engine containment
• Publication/ Report Number:
  DOT/FAA/TC-23/68
• DOI:
  https://doi.org/10.21949/1528254
• 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:
  In a joint effort by George Mason University, The Ohio State University, NASA John H. Glenn Research Center, and the Federal Aviation Administration (FAA) Aircraft Catastrophic Failure Prevention Program, technology is being advanced to produce predictive impact analysis based on a material’s mechanical properties. The team has developed Inconel-718 mechanical property data and the analytical capability that allows for a comprehensive representation of that data in LS-DYNA®, using the *MAT_224 material model. The tabulated input was developed using data from many tests including tension, compression, shear, and many additional stress-states. Both the test data and the modeling also include temperature and strain rate dependencies. This report documents the process of transforming the material test data into a set of *MAT_224 input parameters, including the necessary processing that ensures stable and repeatable results. Verification and validation of the presented models was achieved through comparisons with ballistic impact tests.
• Format:
  PDF
• Funding:
  692M151840003
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/73095/dot_73095_DS1.pdf
• File Type:
  [PDF - 12.39 MB]
• Collection(s):
  FAA William J. Hughes Technical Center for Advanced Aerospace
• Main Document Checksum:
  urn:sha-512:4f03de1598832614b8fdb740d738e17322ab91a2ced7ccf7370756714b099b64c872888ced6c5cfa9f9a8c127f1835e041cb99511ee5c4b56eeb0e36e7d109e7