Notations : in-planedisplacementvector : noise : signal : shiftedsignal : cross-correlation
Notations : in-planedisplacementvector : noise : signal : shiftedsignal : cross-correlation
复制标题
DOI:
--
复制
发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Sandra Bergonnier;F. Hild;S. Roux
中科院分区:
文献类型:
--
作者:
Sandra Bergonnier;F. Hild;S. Roux
Mechanicalcompressionandtearingtestsarecarriedout on crimpedglasswool samples. Thedisplacement field is determinedby usingdigital imagecorrelationbasedon imagestaken at differentstagesof themechanical tests.A multiscalealgorithmis usedto resolve accurately fine detailsof thedisplacement field. This techniquerevealsstrainheterogeneitiesandfurther localisationin compressiontestswell below thepeakstress.Crackformationsareidentifiedin tearingtests. Reliability andresolutionof the displacement andstrainfields arevalidatedby usingdifferentwindow sizesin thecorrelationanalysis.