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Title: General Anisotropy Identification of Paperboard with Virtual Fields Method

Source: Experimental Mechanics, 2014; 16 p.

Author(s)Considine, J.M.; Pierron, F.; Turner, K.T.; Vahey, D.W.

Publication Year: 2014  View PDF »

Category: Journal Articles
Associated Research Project(s):   FPL-4709-4B

Abstract: This work extends previous efforts in plate bending of Virtual Fields Method (VFM) parameter identification to include a general 2-D anisotropicmaterial. Such an extension was needed for instances in which material principal directions are unknown or when specimen orientation is not aligned with material principal directions. A new fixture with a multiaxial force configuration is introduced to provide full-field strain data for identification ofthe six anisotropic stiffnesses. Two paper materials were tested and their Qij compared favorably with those determined by ultrasonic and tensile tests. Accuracy of VFM identification was also quantified by variance of stiffnesses. The load fixture and VFM provide an alternative stiffness identification tool for a wide variety of thin materials to more accurately determine Q12 and Q66.

Keywords: Virtual fields method (VFM); Digital image correlation (DIC); Stiffness; Paperboard; Anisotropy

Publication Review Process: Formally Refereed

File size: 2,056 kb(s)

Date posted: 08/27/2014

This publication is also viewable on Treesearch:  view
RITS Product ID: 68486
Current FPL Scientist associated with this product
Considine, John M.
Materials Research Engineer
  

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