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Wavelet analysis of microscale strains

Shmuel, Gal and Thorgeirsson, Adam Thor and Bhattacharya, Kaushik (2014) Wavelet analysis of microscale strains. Acta Materialia, 76 . pp. 118-126. ISSN 1359-6454.

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Recent improvements in experimental and computational techniques have led to a vast amount of data on the microstructure and deformation of polycrystals. These show that, in a number of phenomena, including phase transformation, localized bands of deformation percolate in a complex way across various grains. Often, this information is given as point-wise values arrayed in pixels, voxels and grids. The massive extent of data in this form renders identifying key features difficult and the cost of digital storage expensive. This work explores the efficiency of wavelets in storing, representing and analyzing such data on shape-memory polycrystals as a specific example. It is demonstrated how a compact wavelet representation captures the essential physics contained in experimental and simulated strains in superelastic media.

Item Type:Article
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URLURL TypeDescription DOIArticle
Bhattacharya, Kaushik0000-0003-2908-5469
Additional Information:© 2014 Acta Materialia Inc. Published by Elsevier Ltd. Received 4 March 2014; received in revised form 5 May 2014; accepted 6 May 2014; Available online 10 June 2014. We gratefully acknowledge the support of the US Air Force Office of Scientific Research through the MURI grant “Managing the Mosaic of Microstructure” (FA9550-12-1-0458). We thank Samantha Daly for providing us the experimental data sets and A.W. Richards for many helpful discussions.
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)FA9550-12-1-0458
Subject Keywords:Wavelets; Polycrystals; Phase transformation; Microstructure
Record Number:CaltechAUTHORS:20140911-091253456
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Official Citation:Gal Shmuel, Adam Thor Thorgeirsson, Kaushik Bhattacharya, Wavelet analysis of microscale strains, Acta Materialia, Volume 76, 1 September 2014, Pages 118-126, ISSN 1359-6454, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49578
Deposited By: Tony Diaz
Deposited On:11 Sep 2014 21:58
Last Modified:03 Oct 2019 07:15

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