简介：Residualstressinducedduringmanufacturingofinjectionmoldedcomponentssuchaspolymethylmethacrylate(PMMA)affectsthemechanicalandopticalpropertiesofthesecomponents.Theseresidualstressescanbevisualizedandquantifiedbymeasuringtheirbirefringence.Inthispaper,alowbirefringencepolariscope(LBP)isusedtomeasurethewhole-fieldresidualstressdistributionoftheseinjectionmoldedspecimens.Detailedanalyticalandexperimentalstudyisconductedtoquantifytheresidualstressmeasurementinthesematerials.Acommercialbirefringencemeasurementsystemwasusedtovalidatetheresultsobtainedtoourmeasurementsystem.Thisstudycanhelpinmaterialdiagnosisforqualityandmanufacturingpurposeandbeusefulforunderstandingofresidualstressinimagingorotherapplications.
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