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Ji Master thesis_final1.pdf (1.94 MB)

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INVESTIGATION OF THE FRACTURE RESISTANCE OF PAPER UTILIZING A MODIFIED LINEAR ELASTIC FRACTURE MECHANICS MODEL

Li, Ji
http://orcid.org/0000-0002-5119-0057
http://rave.ohiolink.edu/etdc/view?acc_num=miami1438342461

Abstract Details

2015, Master of Science, Miami University, Chemical, Paper and Biomedical Engineering.
Although a significant controversy exists on the application of Linear Elastic Fracture Mechanics (LEFM) to paper materials, a simple modified LEFM model was shown to be capable to characterize and predict the fracture resistance of variety of commercial papers. The modified LEFM equation can be used as a simple method to evaluate the fracture sensitivity of paper. A series of double edge-notched tests (DENT) of different commercial papers were conducted and analyzed in this paper. Differences in the fracture sensitivity of several commercial paper materials based on structural and material response were provided. The ability to represent fracture data for a range of papers with the modified LEFM model indicates the tensile strength and fracture process zone are sufficient for characterization. Furthermore, measured tensile strength in paper is affected by inherent flaws and a method of indicating the intrinsic tensile strength of paper materials with the use of deeply notched DENT specimens and extracting it from the fitted modified LEFM equations was presented. Finally, it was concluded that the intrinsic tensile strength of paper is higher than the traditional tensile strength, which is affected by edge flaws after cutting.
Douglas Coffin (Advisor)
D. Steven Keller (Committee Member)
Jason Berberich (Committee Member)
86 p.
Chemical Engineering; Materials Science; Mechanical Engineering
commercial papers; Modified Linear Elastic Fracture Mechanics Model; fracture; prediction; characterization; Double Edge-Notched Test; fracture resistance

Recommended Citations

Citations

  • Li, J. (2015). INVESTIGATION OF THE FRACTURE RESISTANCE OF PAPER UTILIZING A MODIFIED LINEAR ELASTIC FRACTURE MECHANICS MODEL [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1438342461

    APA Style (7th edition)

  • Li, Ji. INVESTIGATION OF THE FRACTURE RESISTANCE OF PAPER UTILIZING A MODIFIED LINEAR ELASTIC FRACTURE MECHANICS MODEL. 2015. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1438342461.

    MLA Style (8th edition)

  • Li, Ji. "INVESTIGATION OF THE FRACTURE RESISTANCE OF PAPER UTILIZING A MODIFIED LINEAR ELASTIC FRACTURE MECHANICS MODEL." Master's thesis, Miami University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=miami1438342461

    Chicago Manual of Style (17th edition)

miami1438342461
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© 2015, all rights reserved.
This open access ETD is published by Miami University and OhioLINK.