Wen-Pei Sung Ming-Hsiang Shih Chung-Huan Sui Digital-Image-Correlation Technique versus Infinitely Small Element Technique for Crack Analysis of Pipe with Crevice. 105-109 2009 FSKD (5) http://doi.ieeecomputersociety.org/10.1109/FSKD.2009.419 conf/fskd/2009 db/conf/fskd/fskd2009-5.html#SungSS09