Question 2: Composite Property Calculations (20 marks] A carbon fibre epoxy pre-preg laminate of 10 layers thick with a

[answerhappygod]

Question 2 Composite Property Calculations 20 Marks A Carbon Fibre Epoxy Pre Preg Laminate Of 10 Layers Thick With A 1 (45.72 KiB) Viewed 39 times

Question 2: Composite Property Calculations (20 marks] A carbon fibre epoxy pre-preg laminate of 10 layers thick with a stacking sequence of (0/0/+30/-30/90), has been manufactured and has a fibre volume fraction of 0.5. The material properties of the T700 carbon fibre and the epoxy matrix are shown in Table Q2 below. Table Q2 Young's Tensile Shear Poisson's Modulus (E) Strength (S) Modulus (G) Ratio (V) [GPa) [MPa] [GPa) T700 Carbon Fibre 240 5000 50 0.1 Epoxy Resin Matrix 5 5 100 4 0.3 a) Calculate the Young's Modulus of the laminate in the main load bearing direction (X- direction) and the lateral direction (Y-direction) using the Rule of Mixtures method. [4 marks] b) Calculate the Young's Modulus in the main load bearing direction (X-direction) and also in the Y-direction using the Simplified Classical Laminate Analysis method. [9 marks) c) Explain why you would not use the Simplified Classical Laminate Analysis method for predicting the performance of a multi-layered composite, as specified in this question, and justify which method you would propose. [3 marks] d) Calculate the efficiency factor for the Rule of Mixtures method in the X-direction if a 0/90 woven material was used for the specified stacking sequence. Clearly explain the procedure that you would follow. [4 marks]