Seul-Kee Kim, Tae-Wook Kim, Gi-Beom Park, Jeong-Hyeon Kim, Jae-Myung Lee
Polyisocyanurate foam, Deformation Recovery, Compression Test, Liquefied Natural Gas (LNG), Insulation material
In this study, compression tests for the polyisocyanurate foam which is recognized as an insulation material for a storage tank of the liquefied natural gas (LNG) were performed to investigate a material behavior of the deformation experienced polymeric foam. A couple of engineering strain levels was selected as the test condition which controls the extent of the experienced deformation for the polyisocyanurate foam. After applying the initial deformation to the specimen, specimen recovered at the ambient temperature for over twenty-hours. And then, typical compression test was carried out for deformation-recovery experienced specimen. Deformation recovery ratio according to the various deformation levels and the mechanical behavior of deformation experienced foams were obtained experimentally in this study. The test results were analyzed based on the test condition, namely the initially experienced deformation level. Based on the test results, it was found that the polymeric foam can be considerably degraded when it experiences a certain level of deformation which is located at the densification region in the stress-strain relation curve of polymeric foam under compression.
Cite this paper
Seul-Kee Kim, Tae-Wook Kim, Gi-Beom Park, Jeong-Hyeon Kim, Jae-Myung Lee. (2017) A Study on Mechanical Behavior of Deformation Experienced Polyisocyanurate Foam under Compressive Load. International Journal of Theoretical and Applied Mechanics, 2, 11-13