Deformation behavior of an epoxy resin subject to multiaxial loadings. Part I: Experimental investigations

• Published in: Polymer engineering and science Vol. 43; no. 3; pp. 721 - 733
• Main Authors: Hu, Yafei, Xia, Zihui, Ellyin, Fernand
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.03.2003; Wiley Subscription Services; Society of Plastics Engineers, Inc; Blackwell Publishing Ltd
• Subjects: Applied sciences; Epoxy resins; Exact sciences and technology; Measurement; Mechanical properties; Physical properties; Polymer industry, paints, wood; Properties and testing; Technology of polymers; Viscoelasticity; Creep; Stress strain relation; Viscoelastic strain; Recovery(properties); Mechanical properties; Epoxy resin; Multiaxial stress; Experimental study; Hydrostatic stress; Compressive stress; Tensile stress; Non linear viscoelasticity; Shear stress
• ISSN: 0032-3888; 1548-2634
• DOI: 10.1002/pen.10060

The mechanical behavior of an epoxy resin (Epon 826) was studied by performing a series of tests on thin‐walled tubular specimens. These tests deal with different aspects of the mechanical behavior of this epoxy resin. The deformation behavior, such as viscoelastic behavior, hydrostatic stress effect, multiaxial behavior and loading path effect, was investigated. It was found that the Epon 826 epoxy resin is a highly nonlinear viscoelastic material. The effect of hydrostatic pressure on the deformation behavior of this epoxy is not significant. However, it shows different tensile and compressive deformation behavior. The loading path was found to have an observable effect on the deformation response of this epoxy, especially in the high stress/strain range.