An Integrated Tool for Estimation of Material Model Parameters (PREPRINT)

Abstract

In this paper, we present results on estimating material model parameters from inverse analysis of full-field deformation data obtained with a prototype of a novel integrated tool consisting of a digital image correlation system and software for data analysis and parameter estimation. Such a tool is needed for characterizing the properties of new materials, and for calibrating and validating material models. The stereo microscope-based image analysis system may be used for measurements at temperatures up to 750 deg C, and field sizes of approximately 1 mm. The Graphical User Interface (GUI)-based parameter estimation tool integrates image data analysis and inverse analysis modules, and incorporates features for interfacing the tool with commercial finite element (FEM) packages. Data analysis includes filtering or correcting for rigid body translations and rotations, and averaging for noise reduction.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 2010
Accession Number
ADA523940

Entities

People

  • H. W. Schreier
  • Narendra Acharya
  • S. Ghosal
  • T. E. Abrahamson

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Computations
  • Computer Programs
  • Data Analysis
  • Digital Images
  • Elastic Properties
  • Geometry
  • Graphical User Interface
  • Images
  • Materials
  • Measurement
  • Mechanics
  • Models
  • Plastic Properties
  • Three Dimensional
  • User Interface

Readers

  • Computer Vision.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Software Engineering.