Mechanical Performance of Graphite- and Aramid-Reinforced Composites at Cryogenic Temperatures

Study on the Mechanical Properties of Composite Materials for Polar Lifeboats

“…Due to the complexity of the internal structure of the lifeboat, in order to facilitate the modeling, the 7.5m lifeboat is simplified as follows: under full load, the weight of each part of the lifeboat is evenly distributed on the inner deck, and the total weight of the lifeboat is about 9.9t. The threedimensional deformable shell model of lifeboat without and without carbon fiber composite material is established [6]. The density of glass fiber composite is 1700kg / m3, the elastic modulus is 10GPa, Poisson's ratio is 0.3, the density of carbon fiber / glass fiber composite is 1515 kg / m3, the elastic modulus is 10.653 GPA, Poisson's ratio is 0.3; the full load lifeboat only bears its own gravity during the lifting process, and the defined gravity load is 9.…”