Displacement fields denoising and strains extraction by finite element method

Opticalfull-fieldmeasurementmethodsarenowwidelyappliedinvariousdomains.Ingeneral,thedisplacementfieldscanbedirectlyobtainedfromthemeasurement,howeverinmechanicalanalysisstrainfieldsarepreferred.Toextractstrainfieldsfromnoisydisplacementfieldsisalwaysachallengingtopic.Inthisstudy,afiniteelementmethodforsmoothingdisplacementfieldsandcalculatingstrainfieldsisproposed.Anexperimentaltestcaseonaholedaluminumspecimenundertensionisappliedtovali...