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STRESS AND STRAIN AMOUNT DISTRIBUTION DISPLAY METHOD, DEVICE, AND PROGRAM

Foreign code F210010311
File No. J1037-01-2WO
Posted date 2021年1月29日
Country 世界知的所有権機関(WIPO)
International application number 2020JP023458
International publication number WO 2020262087
Date of international filing 令和2年6月15日(2020.6.15)
Date of international publication 令和2年12月30日(2020.12.30)
Priority data
  • 特願2019-118848 (2019.6.26) JP
Title STRESS AND STRAIN AMOUNT DISTRIBUTION DISPLAY METHOD, DEVICE, AND PROGRAM
Abstract This method for displaying the stress distribution on a sample surface comprises a step S4 for photographing images of a sample surface before and during the application of a load and after the removal of the load, a step S5 for measuring first strain amounts for each pixel position on the basis of the correlation between the image before the load application and the image after the load removal, a step S6 for measuring second strain amounts for each pixel position on the basis of the correlation between the image before the load application and the image during the load application, a step S7 for calculating stresses for each pixel position on the basis of the differences between the first strain amounts and second strain amounts, and a step S8 for displaying the distribution of the calculated stresses at each pixel position.
Outline of related art and contending technology BACKGROUND ART
A digital image correlation method (Digital Image Correlation, hereinafter referred to as "DIC", is available as a technique for measuring the strain amount distribution caused by deformation of the material surface (, such as Patent Document 1).
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
  • Inventor
  • PARK Myeong-heom
IPC(International Patent Classification)
Specified countries National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO JP KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN WS ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL ST SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN TD TG
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