Transactions of Materials and Heat Treatment

Title：Application research on microscope strain testing system of sheet metal

Authors： LV Xiao-dong WAN Min(School of Mechanical Engineering and Automation Beihang University Beijing 100083 China)

Unit：

KeyWords： strain grid measuring forming limit image processing

ClassificationCode：TH823.3;TG306

year,vol(issue):pagenumber：2007,32(4):101-104

Abstract：

The status of strain grid measuring research in the world and the importance of strain grid measuring technology to FLD are summarized.A desktop system for strain grid measuring has been built,composed with a special designed microscope,CCD unit and PCI bus frame grabber.According to different strain grid,different ways of grid printing is summarized,different ways of image processing and measuring are applied,and a software system is developed to measure the strain grid accurately.

Funds：

Reference：

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