Cryogenic mechanical properties of woven glass/epoxy composites modified with multi-walled carbon nanotube and n-butyl glycidyl ether under tensile static and cyclic loadings

• We studied the cryogenic properties of woven composites modified with MWNT and BGE.
• The tensile properties are hardly influenced by the addition of MWNT and/or BGE.
• The addition of MWNT and BGE increases the fatigue life.
• This research demonstrates the potential to improve the cryogenic properties.

This paper investigates the mechanical properties of woven glass/epoxy composites modified with multi-walled nanotube (MWNT) and n-butyl glycidyl ether (BGE) under tensile static and cyclic loadings at cryogenic temperatures. Tensile tests were conducted at liquid nitrogen temperature (77 K), and the tensile properties of the composites were evaluated. Tension–tension fatigue tests were also performed on the composites at 77 K in order to assess their fatigue performance. Failed specimens were examined by microscopy to verify the failure mechanisms.