4.5.4 Main Takeaways on Bending of Wing Spars
Course subject(s)
Module 4. Loads and Stresses
The spar caps take on the normal forces as a result of bending, and the web plates take on the shear forces.
Taking into account the weight of the fuselage and the engines fitted to the wing, a typical shear force and moment diagram for the wing spar look likes:
![](https://ocw.tudelft.nl/wp-content/uploads/7-21__1_.png)
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