Environmental effects on flexural over-strength factor of epoxy resin materials

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Polymer composite structures are usually subjected to large flexural loadings during their life-span of the structures, so the flexural behavior of these structures and their constituents in different environmental conditions are critical to their use. A novel analytical approach for epoxy resin semibrittle materials with strain softening model in tension and compression has been developed to investigate the flexural behavior of these materials. The value of the flexural overstrength factor which is the ratio of the flexural strength to the strength obtained from tension and compression stress strain models depends on stress gradient, size and loading system and it has already been evaluated at the laboratory condition. The mechanical properties of epoxy resin materials are sensitive to environmental effects at which they are loaded. The influence of temperature 60°C and humidity 90% Rh on tension, compression and flexural behavior of epoxy resin polymeric materials PRI and PR 520 have been investigated. Digital image correlation system was used for material characterization. The effects of heat and humidity on softening localization in flexural response were considered. The influence of heat and humidity on the flexural over-strength factor was evaluated.

Original languageEnglish (US)
Title of host publicationASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
PublisherAmerican Society of Mechanical Engineers (ASME)
Volume9
ISBN (Print)9780791856383
DOIs
StatePublished - 2013
EventASME 2013 International Mechanical Engineering Congress and Exposition, IMECE 2013 - San Diego, CA, United States
Duration: Nov 15 2013Nov 21 2013

Other

OtherASME 2013 International Mechanical Engineering Congress and Exposition, IMECE 2013
CountryUnited States
CitySan Diego, CA
Period11/15/1311/21/13

Fingerprint

Epoxy resins
Environmental impact
Atmospheric humidity
Compaction
Polymers
Composite structures
Bending strength
Mechanical properties
Temperature
Hot Temperature

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Yekani Fard, M., Chattopadhyay, A., & Raji, B. (2013). Environmental effects on flexural over-strength factor of epoxy resin materials. In ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE) (Vol. 9). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE2013-64014

Environmental effects on flexural over-strength factor of epoxy resin materials. / Yekani Fard, Masoud; Chattopadhyay, Aditi; Raji, Brian.

ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE). Vol. 9 American Society of Mechanical Engineers (ASME), 2013.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Yekani Fard, M, Chattopadhyay, A & Raji, B 2013, Environmental effects on flexural over-strength factor of epoxy resin materials. in ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE). vol. 9, American Society of Mechanical Engineers (ASME), ASME 2013 International Mechanical Engineering Congress and Exposition, IMECE 2013, San Diego, CA, United States, 11/15/13. https://doi.org/10.1115/IMECE2013-64014
Yekani Fard M, Chattopadhyay A, Raji B. Environmental effects on flexural over-strength factor of epoxy resin materials. In ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE). Vol. 9. American Society of Mechanical Engineers (ASME). 2013 https://doi.org/10.1115/IMECE2013-64014
Yekani Fard, Masoud ; Chattopadhyay, Aditi ; Raji, Brian. / Environmental effects on flexural over-strength factor of epoxy resin materials. ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE). Vol. 9 American Society of Mechanical Engineers (ASME), 2013.
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