Due to their high energy absorption capabilities, polyurethane (PU) foams have been widely used in many applications. The mechanical behavior of Polyurethane (PU) foams has been attracting the attention from engineers and researchers. But most of work was to study the compressive behavior of PU foams. Very little knowledge is available about the fracture behavior of the PU foams. In this paper, single edge notch bend (SENB) and single edge notch tension (SENT) tests are conducted to study the mode-I fracture behavior of a rigid closed cell PU foam, PMDI 20, with a nominal density of 20 pcf (320 kg/m3). The stress intensity factor KIC is calculated from the loading curves. The displacement and strain field around the crack tip is obtained using digital image correlation (DIC) technique.
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ASME 2007 International Mechanical Engineering Congress and Exposition
November 11–15, 2007
Seattle, Washington, USA
Conference Sponsors:
- ASME
ISBN:
0-7918-4304-1
PROCEEDINGS PAPER
Fracture Behavior of Polyurethane Foams
Helena Jin,
Helena Jin
Sandia National Laboratories, Livermore, CA
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Wei-Yang Lu,
Wei-Yang Lu
Sandia National Laboratories, Livermore, CA
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Soonsung Hong,
Soonsung Hong
Sandia National Laboratories, Livermore, CA
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Kevin Connelly,
Kevin Connelly
Sandia National Laboratories, Livermore, CA
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John Korellis
John Korellis
Sandia National Laboratories, Livermore, CA
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Helena Jin
Sandia National Laboratories, Livermore, CA
Wei-Yang Lu
Sandia National Laboratories, Livermore, CA
Soonsung Hong
Sandia National Laboratories, Livermore, CA
Kevin Connelly
Sandia National Laboratories, Livermore, CA
John Korellis
Sandia National Laboratories, Livermore, CA
Paper No:
IMECE2007-42732, pp. 951-954; 4 pages
Published Online:
May 22, 2009
Citation
Jin, H, Lu, W, Hong, S, Connelly, K, & Korellis, J. "Fracture Behavior of Polyurethane Foams." Proceedings of the ASME 2007 International Mechanical Engineering Congress and Exposition. Volume 10: Mechanics of Solids and Structures, Parts A and B. Seattle, Washington, USA. November 11–15, 2007. pp. 951-954. ASME. https://doi.org/10.1115/IMECE2007-42732
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