Contents
Is torque a bending moment?
A bending moment is the internal reaction to a bending load. Therefore, this force system is statically equivalent to a pure moment (no resultant force). Torque is a moment that is applied in such a way that it tends to rotate a body around its axis. The usual example being a torsional moment on a shaft.
Is torque and twisting moment the same?
It is also known as torsion which is defined as twisting of a structural element under the action of torque. Whereas a torque is a force that tends to cause rotation. In other words, the effect of torque is known as twisting moment. Both torque and twisting moment have the same SI unit as Nm.
Is bending a force?
A bending force is a force that is applied to a length of material. The bending force is applied to a point, area or volume that is some distance from a fixed portion of the component or structure to which the force is being applied.
What is a pure torque?
A “pure torque” requires a “force couple” where the two forces cancel out on the centre of mass as 0 net force; but due to the direction of the forces, it still produces a net torque on the object, which causes rotation without translation (A.K.A. pure torque, pure moment, or pure rotation).
What is G in torsion?
G is the shear modulus, also called the modulus of rigidity, and is usually given in gigapascals (GPa), lbf/in2 (psi), or lbf/ft2 or in ISO units N/mm2. The product JTG is called the torsional rigidity wT.
What is torque beam?
The beam itself sits on a pivot. To the right a single weight (W) produces a force (F1) acting at a distance (L1) from the pivot. This creates a torque (T1) equal to the product of the force and the distance. T1 = F1 * L1. To the left of the pivot two weights (W) produce a force (F2) at a distance (L2).
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 .
What is difference between torque and torsion?
Torsion happens when the torque causes a shear stress to be applied on the body. The main difference between torque and torsion is that torque describes something that is capable of producing an angular acceleration, whereas torsion describes the twist formed in a body due to a torque.
When to choose a shaft with the right torque?
The basic rules when choosing a shaft with the right torque are as follows: Golfers with high swing speeds (100+ mph) typically need lower torque shafts. Too much torque will produce excessive twisting of the clubface and wildly off-line shots.
Which is lower in torque’s flex or X Flex?
This assumption is built right into most shafts by the manufacturers: take virtually any shaft on the market, and the X-flex version will have lower torque than the S-flex, which has lower torque than the R-flex.
When did golf shafts start to have torque?
The golf industry’s first experience with shaft torque came way back before the early 1900s when hickory was the predominant shaft material. Wooden shafts had very little resistance to twisting. In fact, a completely different swing technique was required to prevent wooden shafts from twisting too much during the swing.
How does shear stress affect the length of a shaft?
Shear stress depends on the applied torque, the distance along the radius of the shaft, and the polar moment of inertia. (Note that polar moment of inertia is a function of geometry and does not depend on the shaft material.)