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USING THREE-DIMENSIONAL DIGITAL IMAGE CORRELATION TO FIND STRAINS IN STRUCTURAL POLYMER FOAM

Gadepalli, Prasanna Chaitanya
http://rave.ohiolink.edu/etdc/view?acc_num=akron1595947881930553

Abstract Details

2020, Master of Science, University of Akron, Mechanical Engineering.
The objective of this research was to develop a three-dimensional digital image correlation technique to find the full field strains in Divinycell H100 foam. A pressure vessel experiment was developed to determine the triaxial, elastic-plastic and hysteresis behavior of Divinycell H100 foam. The tests were conducted under various peak values of pressures and deformation of the specimens. To record the data from the triaxial experiments, three-dimensional digital image correlation technique was required because two-dimensional digital image correlation could not detect the deformations in the thickness direction. A method to perform three-dimensional digital image correlation to acquire the full field strains was presented. Using the three-dimensional digital image correlation technique, the triaxial stress-strain curves for the experiments was acquired. However, there are limitations to the DIC process. The strain data acquired showed scatter for the strains occurring on the order of 10-3 and less, because the noise-to-signal ratio was high in small strain region. Strains larger than 10-3 were not affected due to noise.
Michelle. S Hoo Fatt (Advisor)
Xiaosheng Gao (Committee Member)
58 p.
Mechanical Engineering
Three-Dimensional Digital Image Correlation; Speckling and Polymer foam

Recommended Citations

Citations

  • Gadepalli, P. C. (2020). USING THREE-DIMENSIONAL DIGITAL IMAGE CORRELATION TO FIND STRAINS IN STRUCTURAL POLYMER FOAM [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1595947881930553

    APA Style (7th edition)

  • Gadepalli, Prasanna Chaitanya. USING THREE-DIMENSIONAL DIGITAL IMAGE CORRELATION TO FIND STRAINS IN STRUCTURAL POLYMER FOAM. 2020. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1595947881930553.

    MLA Style (8th edition)

  • Gadepalli, Prasanna Chaitanya. "USING THREE-DIMENSIONAL DIGITAL IMAGE CORRELATION TO FIND STRAINS IN STRUCTURAL POLYMER FOAM." Master's thesis, University of Akron, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=akron1595947881930553

    Chicago Manual of Style (17th edition)

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This open access ETD is published by University of Akron and OhioLINK.