Title
Experimental study of low cycle fatigue properties for epoxy resins with dibutyl phthalate (DBP)
Document Type
Article
Publication Date
12-31-2018
Abstract
In order to improve the toughness of traditional epoxy resin, dibutyl phthalate (DBP) was introduced into the epoxy resin. The static mechanical performance of plasticized and unplasticized epoxy resin was evaluated. The test results showed that the DBP modified epoxy resin can obtain a higher toughness than conventional epoxy resin, but the elastic modulus and the tensile strength were slightly reduced. The low cycle fatigue test results indicated that the stress ratio and the stress level were two critical factors of fatigue life, which was increased with the growth of stress ratio. It was also found that the fatigue life of plasticized specimen was much less than that of the unplasticized specimen because of the plastic deformation. A logarithmic linear relationship was then established to predict the fatigue life for plasticized epoxy resin. The strain energy density was also applied to demonstrate the accumulation of energy loss. In addition, the fatigue toughness can be obtained by the hysteresis loop area method.
Publication Title
Archives of Civil Engineering
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Recommended Citation
Wang, Z.,
Zhou, J.,
Song, L.,
&
Li, L.
(2018).
Experimental study of low cycle fatigue properties for epoxy resins with dibutyl phthalate (DBP).
Archives of Civil Engineering,
64(2), 147-159.
http://doi.org/10.2478/ace-2018-0021
Retrieved from: https://digitalcommons.mtu.edu/cee-fp/79
Version
Publisher's PDF
Publisher's Statement
Copyright 2018 by Z. Wang, J. Zhou, L. Song, L. Li. Article deposited here in compliance with publisher policy. Publisher's version of record: https://doi.org/10.2478/ace-2018-0021