简介：Onthebasisofthemedicalandmechanicalanalysisandexplanationsinthispaperthevisco-elasticsimplysupportedbeammodelisproposedtotreatthedisplacementwaveofthebloodvessels.Therelationshipsbetweenthedisplacementwaveandbloodvesselelasticityaswellastheviscousdissipationofthebloodandbloodvesselareobtained.ThecorrespondingrelationsofsuchkindsofpulsesinthetraditionalChinesemedicineassmoothpulse,surfacepulseanddeeppulsetothedisplacementwavesofbloodvesselsarealsofound.Thecomputationalresultsareingoodagreementwiththoseacquiredintheexperimentswithultrasonicwave.

简介：Inthispaper,theauthorobtainsthemoregeneraldisplacementsolutionsfortheisotropicplaneelasticityproblems.Thegeneralsolutionobtainedinref.[1]ismerelytheparticularcaseofthispaper,Incomparisonwithref.[1],thegeneralsolutionsofthispapercontainmorearbitraryconstants.Thustheymaysatisfymoreboundaryconditions.

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

简介：Inordertoinvestigatetheinfluenceoftheverticalvibrationloadingontheliquefactionofsaturatedsand,onedimensionalmodelforthesaturatedsandwithaverticalvibrationispresentedbasedonthetwophasecontinuousmediatheory.Thedevelopmentoftheliquefactionandtheliquefactionregionareanalyzed.Itisshownthattheverticalvibrationloadingcouldinduceliquefaction.Therateoftheliquefactionincreaseswiththeincreaseoftheinitiallimitstrainorinitialporosityoramplitudeandfrequencyofloading,andincreaseswiththedecreaseofthepermeabilityorinitialmodulus.Itisshownalsothatthereisaphaselaginthesandcolumn.Whenthesandpermeabilitydistributionisnon-uniform,theporepressureandthestrainwillrisesharplywherethepermeabilityisthesmallest,andfracturemightbeinduced.Withthedevelopmentofliquefaction,thestrengthofthesoilfoundationbecomessmallerandsmaller.Inthelimitingcase,landslidesordebrisflowscouldoccur.

简介：为预言在室内的空格的喷雾器粒子分散与试验性的数据被验证的一个建议计算机模型在文学发现了，并且然后被用来在排水量通风(DV)在粒子分散上学习区域和点来源地点的效果房间。结果证明那个喷雾器来源地点在空间分发和室内的粒子的移动率上有强壮的影响。粒子移动性能在室内的表面上强烈取决于通风效率和粒子免职率。为两相对通风效率和免职率的重要考虑相对主要气流模式和占据地区由喷雾器来源的位置组成。

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简介：Inthispaper,amethodofconstructingdisplacement-basedelmentforthick/thinplatesisdevel-opedbyusingthetechniqueofgeneralizedcompatibility,andarectangulardisplacement-basedelementwith12degreesoffreedomforthick/thinplatesispresented.Thismethodenjoysagoodaccuracywithsimpleformulationandisfreeofshear-lockingasthethicknessoftheplateapproacheszero.

简介：Thispaperpresentsamethodtomeasurethein-planedisplacementfieldsofcurvedsurfacebymoireinterferometryofpartialcoherentlight.Themethodhasthefollowingadvantages:simpleopticalsystem,norequirementonvibrationisolation,highsensitivity,largemeasuringrange,highcontrastofinterferencefringesandavailabilitytoin-situstructuraltesting.Thepresentpaperalsogivestheoreticalanalysisofthemethodandtheformulasoflightintensityanddisplacementfield,andintroducesareplicationtechniquetoformahighfrequencyreflectancegratingonthecurvedsurface.Theexperimentsachievedthemeasurementofthesurfacedisplacementfieldofacylindricalshell—thesimultaneouscircumferential,axialand45°displacementfields.Thetorsionaltestdataforsurfacedisplacementofacircularbaragreewellwiththetheoreticalresult.

简介：Thispaperpresentsafringe-carriermethodthateliminatessignambiguityoftransientmoirefringeswhichcanbeusedtoautomaticallydeterminetherelativeorders.Afringecarrierispresetinthestaticstateofthespecimenandthedynamicin-planedisplacementsarerecordedasthemodulationtothefrequencyofthecarrierfringeswhenthespecimenisloadedbyimpact.Accordingtoamodulatingcriteriondevelopedfromthemodulationdegree,thefringesofthetransientmoirepatternskeepmonotonicalinorderssothattheycanbeautomaticallyencodedingreylevelsbyadigitalimagesystem.Themoireorderspurelycausedbydynamicloadingsareevaluatedbysubtractingthegrey-valueoftheunmodulatedcarrierimagefromthatofthemodulatedcarrierimagesencodedbytheirorders.Withthesubtractedmoireordersthestraincomponentscanbeobtained,and,correspondingly,thehistogramsofdynamicdisplacementmoireimagesareshownwithordervariationbyimage-difference.