Here considered 95% man’s weight of the population is about116Kg (1160N) [6]. This is the maximum load acting on pedal as well as crank in downward.
Due to this load bending stress in crank and it will create twisting of the crank. The maximum bending stress gives the load acting at the end of the pedal. Crank and pedal connected with threads and considered as two cantilever beams for calculation purposes.
When maximum force was acted on end of the pedal it causes bending and torsion of the crank. Total directional deformation was equal to deflection of pedal and crank with torsional deflection of pedal. For hand calculations made necessary assumption and simplification and geometry of the pedal considered as solid circular part and crank is rectangular part.