Table of Contents
What happens when torsion is applied?
Torsional Deformation When a torque is applied to the structure, it will twist along the long axis of the rod, and its cross section remains circular.
Where torsion is occur?
Testicular torsion occurs when the testicle rotates on the spermatic cord, which brings blood to the testicle from the abdomen. If the testicle rotates several times, blood flow to it can be entirely blocked, causing damage more quickly.
What is torsion theory?
If a material is subjected to twisting by the application of a couple a shear stress will be induced within the material. If a couple is applied to a cylindrical rod in such a way that the axis of the couple is coincident with the axis of the rod, then the rod is said to be subject to pure torsion.
What is the difference between torsion and twisting?
is that torsion is the act of turning or twisting, or the state of being twisted; the twisting or wrenching of a body by the exertion of a lateral force tending to turn one end or part of it about a longitudinal axis, while the other is held fast or turned in the opposite direction while twisting is .
Does torsion cause normal stress?
Torque on a shaft causes shear stress. The torsion, or twist, induced when torque is applied to a shaft causes a distribution of stress over the shaft’s cross-sectional area. (Note that this is different from tensile and compressive loads, which produce a uniform stress over the object’s cross-section.)
What is a real life example of twisting or torsion?
The drive shaft of a car connecting the engine to the rear axle is a very common example. The rotation of the shaft will cause twisting, resulting in the development of torsional stresses. Other examples could include the propeller shaft of a ship or aircraft.
How is torsion calculated?
In the field of solid mechanics, torsion is the twisting of an object due to an applied torque. Torsion is expressed in either the pascal (Pa), an SI unit for newtons per square metre, or in pounds per square inch (psi) while torque is expressed in newton metres (N·m) or foot-pound force (ft·lbf).
Why is torsion test important?
Torsion testing is necessary when engineers wish to change or update the materials used in these products. For example, the metal used in vehicle drive trains experiences a complex combined loading when in use, with torsion being the main component.
What is twisting force called?
A force that twists something is called torsion. In physics, you can calculate torsion using a formula. The turning or twisting force that causes torsion is called torque.
When do you get testicular torsion what causes it?
Testicular torsion can happen to guys of any age, but it’s most common in teens. Most of the time there’s no obvious cause. Testicular torsion can happen after an injury, during exercise, or even during sleep. Talking to someone about your balls might be embarrassing. But if you have pain, you need to get help.
What happens to the ovaries when there is torsion?
The ovaries have two main functions: producing hormones (including estrogen and progesterone) and releasing an egg each month for fertilization. Ovarian torsion usually occurs on just one side and can cause sudden, intense pain and vomiting. It can also cause an infection (peritonitis) in the abdominal cavity.
Can you get peritonitis from an ovarian torsion?
It can also cause an infection (peritonitis) in the abdominal cavity. The majority of ovarian torsion cases affect women of reproductive age, but girls can have the condition as well. Although ovarian torsion is not common, it is a medical emergency.
How often can a testicle be saved after torsion?
The amount of twisting can be anywhere from 180-720 degrees. The degree of twisting affects how quickly a testicle gets damaged. As a general rule, within about 4 to 6 hours, the testicle can be saved 90% of the time. After 12 hours, this drops to 50%; after 24 hours, the testicle can be saved only 10% of the time.