Modulus of Rigidity & Shear Modulus: Definition & Meaning
2005年6月6日 · In prismatic beams, the product of EA is known as axial rigidity. [tex] \delta = \frac{PL}{EA} [/tex] where [itex] \delta [/itex] is the change in length, P is the force applied at the centroid, L is the original length, E is the modulus of elasticity (assuming the material is at the elastic-linear region) and A is the cross sectional area.
Calculating Poisson's Ratio with a Modulus of Rigidity & Young's …
2014年10月4日 · The lateral strain can be determined by measuring the change in width of the material and the axial strain can be determined by measuring the change in length of the material. What is the Modulus of Rigidity? The Modulus of Rigidity, also known as shear modulus, is a measure of a material's ability to withstand shear stress.
What is axial rigid body motion? - Physics Forums
2013年10月21日 · What causes axial rigid body motion? Axial rigid body motion is caused by an external force acting on an object, such as a torque or a force applied at a distance from the axis of rotation. This force causes the object to rotate around the axis and also move in a straight line along it. Can axial rigid body motion occur in all objects?
Torsion Rigidity: Definition & Examples - Physics Forums
2009年2月19日 · Torsion rigidity is also different from flexural rigidity, which is related to the resistance to bending in a linear fashion. What are some examples of materials with high torsion rigidity? Materials that are known for their high torsion rigidity include metals such as steel, titanium, and aluminum, as well as composite materials like carbon fiber.
What Do Axial, Transverse, and Torsional Directions Mean?
2009年3月10日 · Axial, transverse, and torsional directions refer to different ways in which forces or movements can act on an object. Axial direction refers to a force or movement that acts along the same axis as the object. For example, if you push a door open, the force is acting in the same direction as the door's hinges.
Does Jupiter have precession of the equinoxes? - Physics Forums
2015年12月11日 · While its mass and distance from the Sun may have a slight effect, it is not significant enough to be detected. According to research, Jupiter's axial precession has a period of approximately 500,000 years. This means that rigidity is not a determining factor in a planet's precession. Thank you.
Stiffness of column when fixed versus pin fixed - Physics Forums
2012年8月2日 · A fixed column is one that is fully restrained at both ends, while a pin fixed column is only partially restrained at one end. This means that a fixed column is able to resist both axial and lateral loads, while a pin fixed column can only resist axial loads. How does the stiffness of a fixed column differ from a pin fixed column?
Linear force vs Torque vs Axial force - Physics Forums
2017年5月1日 · Axial force is a type of force that acts along the axis of an object, while linear force can act in any direction. However, when the direction of linear force is parallel to the axis, it is considered to be an axial force. Can torque and axial force be compared? Torque and axial force are two different types of forces and cannot be directly ...
Effective Flexural Rigidity (EI) of Composite Cantilever Beam
2017年9月27日 · The effective flexural rigidity and mass per unit length of the composite beam are important factors in this equation. While for a pure layered composite beam, these values can be easily calculated by adding the properties of each layer, the process becomes more complex when there are different materials laminated in parallel in the middle layer.
Help w/ repairing/refurbishing an equatorial mount - Physics Forums
2024年12月24日 · My eq mount was not behaving - the RA joint was slipping in its socket. There was too much play. So I repaired it once, tightening the axial bolt. The problem is that if I tighten it too much, it binds. So I've taken it apart a second (actually, third) time and cleaned it and regreased it. And this time I made sure the worm gear was properly ...