In a healthy person, when supporting their entire body on oneleg, the total weight of the human has asuch an effect that the leg muscles are compressed and the bonesremain in balance on thevertical axis thanks to the ligaments. In this way, each bone doesnot feel an individual effort butrather the effort is collective. However, if the femur were tofracture and go through a process ofrehabilitation, when the person again tries to maintain theirweight with the affected leg, justin the region of the fracture, the bones will feel forces of thesame magnitude, but in the opposite direction.These forces will cause pain as the fractured area will feel thefull weight of the person (rather thanthat it is distributed throughout the leg).
When a person suffers a broken bone,one of the possible procedures to fix theaffected bone so it can rebuild itselfitself is to place a metal plate that joinsusing two screws the two parts of boneresulting from the fracture.If the diameter of the screws is 5 mm and the weightof the patient is 750 N and the shear moduluscan vary from 8 to 40 MPa, calculate theshear stress exerted on the bolts in afixing system as described.
In A Healthy Person When Supporting Their Entire Body On One Leg The Total Weight Of The Human Has A Such An Effect Th 1 (17.89 KiB) Viewed 13 times
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