Question

Element traction force is given by ___

(a) T^e=\(\frac{l_e}{2}\int_{-1}^{1}\)N^T dξ

(b) T^e=\(\frac{l_eT}{2}\int_{-1}^{1}\)N^T dξ

(c) T^e=\(\frac{l_eT}{2}\int_{-1}^{1}\)N^T

(d) Undefined

This question was posed to me in a job interview.

My question is from One Dimensional Problems topic in division One Dimensional Problems of Finite Element Method

Answer 1

Right option is (b) T^e=\(\frac{l_eT}{2}\int_{-1}^{1}\)N^T dξ

Easy explanation: The term traction force can either refer to the total traction a vehicle exerts on a surface or the amount of total traction that is parallel to the direction of motion.

Element traction force is given by

 T^e=\(\frac{l_eT}{2}\int_{-1}^{1}\)N^T dξ