Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

A notched (150 x 150 mm) aluminium plate (Figure 1) is used to reinforce the main spar cap and subjected to 45 N.m and

A notched (150 x 150 mm) aluminium plate (Figure 1) is used to reinforce the main spar cap and subjected to

A notched (150 x 150 mm) aluminium plate (Figure 1) is used to reinforce the main spar cap and subjected to 45 N.m and 57 N.m bending moments. The thickness of the plate is (8 mm), and the diameter of the circular hole is (10 mm). It is intended to replace the aluminium plate with a composite laminate. However, due to new design constrains, the total thickness of the composite plate should not be higher than (4 mm). The material properties of the selected carbon/epoxy laminate are given in Table 1. Assume that 0 and 90 plies do not contribute towards the shear strength of the laminate. Table 1: Material E G12 V12 (GPa) (GPa) (GPa) 181 (GPa) 10.3 7.17 0.28 Figure 1: Aluminium plate properties of the selected carbon/epoxy laminate Ultimate Ultimate S(+45) (MPa) tensile strain 15,500 compression strain 8.000 250 Ply thickness (mm) 0.13 A. Calculate the minimum number of control plies (0, 45 and 90) that can meet the specified design constrains. B. Following the good practise rules for the design of aerospace composite structures, suggest an acceptable laminate stacking sequence. C. Determine the Margin of Safety (M.S.) of the proposed laminate (Part B) for Nx and Ny and discuss the safety issues of the composite plate based on the calculated M.S. values.

Step by Step Solution

3.41 Rating (157 Votes )

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Molecular Biology Of The Cell

Authors: Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter

6th Edition

9780815344322

More Books

Students also viewed these Accounting questions

Question

=+a) Is this an experiment or observational study? Explain.

Answered: 1 week ago