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Title: Anisotropy Characterization of Asymmetric Glass/Epoxy Composites

Source: Proceedings of 2013 Society of Experimental Mechanics Annual Conference, Paper 62, 2013; 8 p.

Author(s)Holmes Jr, L. R.; Considine, J.M.; Pierron, F.; Turner, K.T.

Publication Year: 2013  View PDF »

Category: Conference Proceedings
Associated Research Project(s):   FPL-4709-4B

Abstract: Fast, accurate stiffness identification is a critical component in programs integrating material processing science and mechanical characterization with end-use applications. Variation of material processing parameters coupled with an understanding of the manner in which those variations affect mechanical properties can be used to create a design envelope for customized material development. This work describes a unique load frame designed to produce sufficient full-field strains for identification of all in-plane Qi j from a single test. Surface strains were measured with DIC and processed using a VFM analysis extended to include Q16 and Q26 identification. Two glass/epoxy composites were examined; one of the materials was intentionally fabricated with a small amount of anisotropy. Quality of stiffness identification was determined. Identified Qi j compared favorably with those calculated by ply-laminate theory.

Keywords: VFM; DIC; stiffness; glass/epoxy; anisotropy

Publication Review Process: Non-Refereed (Other)

File size: 728 kb(s)

Date posted: 05/29/2013
RITS Product ID: 64010
Current FPL Scientist associated with this product
Considine, John M.
Materials Research Engineer

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