Bending Definition and 633 Threads

Homework Statement A Beam ABCDE is 10m long and supported at its left hand end A and at a point D which is 9m to the right of A. The beam carries concentrated loads of 5kN at B, which is 2m to the right of A, 10kN at C, which is 6m to the right of A, and 3kN at E. It also carries a distributed...

Hello all can anyone advise me if i am doing this right, i have a 3m bar supported at both ends at 1m in 5kn and 2m in 10 kn, i understood that moments A = 1x5 and 2x10 =25/3 and support A upward force 8.3kn and B 5+10-8.3 = 6.7kn? anyhelp would be great thanks

Homework Statement Homework Equations moment = force x distance The Attempt at a Solution the book answer is different and doesn't show bending diagram. Can't tell what it should look like. Answer for maximum stress in book is way off: m=60 k*ft, s=17.1 in^3, stress = m/s =...

So for school I'm designing a ramp. The problem is that I need to calculate various things in it, none of which I've ever been taught, since I'm pretty sure it's all uni level. I've asked multiple teachers, including my physics teacher and my technology teacher, and they haven't been any help...

I am looking for an equation (or method to develop the equation) for bending of an irregular shape. I have only been able to find bending equations for beams. The attached picture shows the shape of the gusset being bent and the location of the force. If this were a beam it would be a cantilever...

Homework Statement Homework Equations moment = force x distanceThe Attempt at a Solution on sheet. According to the book, the max moment is 5.6 kN (at a distance of 2.4 m from point A), which was my calculation before adding the force at A (.8 kN upward) whats wrong?

Homework Statement I have a bumper and I am trying to determine whether or not the rectangular tubing I am using to build it is strong enough to withstand a given load (rear end collision). The horizontal member is 4x3x.1875 tubing (4" base, 3" high, 95" long). Two 3x3x.1975 tubes are used as...

Does anyone know of any good articles, journals or books that discuss the difference between simplified theoretical analysis of a beam under load and the actual real life effects? Need to do some reading up for an assignment but I'm having trouble finding anything of any merit! Cheers in...

Homework Statement Water enters a pipe and goes through a bend with a contraction from 40mm to 25mm then into the atmosphere. What is the horizontal force required to hold the pipe in place? Homework Equations I have either been given the following or have calculated them using the standard...

So I just started learning to use the finite element package abaqus for modelling beam tip deflection under different loading conditions. I think I understand the theory behind it but was wondering if some one could answer a few questions about it to further my understanding. Firstly, how do...

Homework Statement Hey guys I'm having trouble drawing the bending moment diagram for this beam with a hinge? I'm not sure where to start? I've looked at stuff online and its completely different to the stuff in my textbook Homework Equations equilibrium equations ƩFx=0 ƩFy=0 ƩM=0...

Hey guys, as the title says I can understand why the neutral axis does not pass through the centroid after reaching a point where the bending moment is max before the beam collapses. Say you have a straight structure supported by two double I-Beams and a weight in the middle. Why does the...

curious as to the proper way to model this. beam is symmetric so centroid is in the middle (used to calculate distance from centroid d in bending moment of inertia equation) bending moment of inertia is I =\sum(I + Ad2) I=\frac{1}{12}bh b=base h=height d=distance of the area's...

why does the wavelength of light or sound waves affect the degree of bending?I know the mathematical formula for fringe width,but i want to know the physical reasons behind the phenomenon of bending. Taking the example of light passing through a small slit,the huygens principle talks about...

I need to calculate the force necessary to bend a rod 180 degrees around a radius of 1.75 meters. Basically bending the rod into a horseshoe. I have looked at the simple bending calculations and I am sure this must be similar to those but I do not see anything for a constant radius bend. Any...

please let me know what is the nature of force that bends the path of photon during refraction.

Homework Statement I need to find the bending moment of a washer shape for a project I'm working on so I don't have an exact problem statement. Imagine that a washer was fixed (not pinned) around its inner radius and a force were applied evenly around the outer radius. How can I go about...

I need to calculate how much tension it would require to bend large insulated cable of various sizes around a pulley. The Conductor would be made of aluminum or copper and solid. The Insulation would be of various thicknesses depending on the cable. I was looking at breeaking this problem down...

I found this equation for predicting the bending natural frequency of a tube but am having trouble working it out. I was hoping that someone might be willing to steer me in the right direction. First the equation and the info provided on the website: w = (B*l)2 * SQRT (E*I/(rho*l4)) w -...

Hello everyone. I wanted to know if, for low wing single engine nose-driven prop aircrafts, there has ever been a measurement done, while in flight, of the actual amount of wing bending occurring during sustained level turns at a measured G force, including full power sustained turns...

Homework Statement A 97.4 kg basketball player can leap straight up in the air to a height of 71.9 cm. The player bends his legs until the upper part of his body is dropped by 61.2 cm, then he begins his jump. With what speed must the player leave the ground to reach a height of 71.9 cm...

The calculation for the maximum bending moment is to be verified experimentally... The calculation for the maximum bending moment is to be verified experimentally using a strain gauge bonded to the outer surface of the beam, at the point where the maximum bending moment occurs. Derive an...

Light's "direction" of travel, bending, and speed Hoping someone can clear up a few questions... At any particular instant in time (from anyone's perspective), is light (or a photon, if that helps) thought to have a specific direction of travel while between emission and absorption? I've...

Homework Statement A timber beam will be used to support part of the ceiling of a house. It is going to be attached to the walls as a simply supported beam, Figure 6. If three forces are applied to it and considering the weight of the beam as a uniformly distributed load of...

1. I have a rod as pictured in the attachment. The rod is at a 45 degree angle. The load force is 115.118lbf The force is y-direction is 97.954lbf The Force at A is 5 inches from Force in the y-direction. The force at B is 10.5 inches from the Force in the y-direction I need to find...

I understand that space is curved inwards by the mass of the planet and I understand how curved space could redirect things towards the planet when they are moving. What is strange to me is the idea that curved space time itself could move me towards the earth. Gravity it seems to me is an...

hi, I'm studying the book for elasticity theory and I stuck at one of the equation in that book, the stiffness matrix for elements(thin or thick plate) in bending is given in that form ke= t∫∫BT*Db*B*det(J)dζdη+∫∫BT*Ds*B*det(J)dζdη B is the strain matrix(5x12) where the inner...

You probably know how to bend water: Use a comb and rub it with wool (or just comb your hair) and hold it next to thin jet of water coming out of a tap. Here is a video: Comb with wool An explanation is offered here (the water molecule is polar). However, I remember my physics teacher...

Homework Statement Designing a safety pin for gate valve, picture is attached! Material: EN24 (λ=680MPa and E= 207 GPa) Total distance between supports = 98 mm! Force applied by gate is 64705 N! Question: Minimum diameter of pin for 1) No shearing , 2) a maximum deflection of 1 mm...

I have read in my Physics book that if gravitational acc and inertial acc are equivalent then gravity must bend light by a precise amount. What that means?What is inertial acc? What that equivalency has to do with general theory of relativity i.e with warping of space time?

If I bend a paper, it doesn't change the things written on it. If gravity is bent space(time), we shouldn't be able to detect it. (e.g. things shouldn't be dragged by it) So why are we talking about bending space, if it's not the space itself that is bending? it's only our mental...

Homework Statement The Attempt at a Solution Is this correct?

i thought the maximum deflection of a structure (a beam for example) occurred at the same location of the maximum bending moment. But, doing some homework I am getting contradicting results. does max deflection ALWAYS occur at the same location of the max bending moment? thanks for the...

Homework Statement I am trying to work out the Shear force and bending moments in a simple cantilever bean with a point load and a U.D.L but am not sure of the equations or how to go about starting it. Its a 2 m long cantilever beam built into a wall at the right-hand end, Point C. A UDL is...

Homework Statement I am using a Vishay strain indicator with it hooked up to a strain gage hooked up 1" away from the wall on the solid beam. The beam is .5" by .5", and it is solid. The beam is 16" long and I am putting weights at the end of the beam. The weights are 1, 2, 5, 10, 15, and 20...

Homework Statement The Attempt at a Solution Is my work correct?

Homework Statement Neglecting the size of the pulley at G, draw the shear and bending moment diagrams for beam AB. Homework Equations Fxnet=0 Fynet=0 Netmoment=0 The Attempt at a Solution\ What I want to do first is figure out the reactions at A and C, however I'm not sure...

Figured it out.

Folks, I was checking to see was it possible to determine the bending moment diagram from the shear force diagram. Seemingly one can do it for simply supported beams but if we consider a rigidly supported beam on either end its not possible to derive the bending moment diagram from the shear...

This is my first course in Engineering and the professor told us today that we have to do shear and bending moment diagrams for an arch bridge. Anyone have any clue on how to do this? He gave us no information on how to do it and nothing in a book. Please help??

Homework Statement draw/find the shear and bending moment diagrams of: Homework Equations V : shear M : bending moment ω : distributed load The Attempt at a Solution i already understood how the solution worked but i can't quite understand how the equations with the boxes were derived

Homework Statement This is supposed to be a simple problem that shows that light bends or gets pulled in a gravitational field. A light pulse emitted in the positive x direction travels 10 s in a uniform gravitational field of 100 m/s^2. the gravitational field points in the negative y...

Recently, I had lab. In the lab we took different objects and measured their strain. One object had a varying cross section. The data for strain was recorded. Right now, I'm trying to make a stress strain graph, but the problem is my equation for stress. I don't know how i can take my moment of...

Not Really a homework question but it will help with how i go about the homework. So i have a beam coming out of the wall and it has force acting on it like this: Woops, that 20 on the side view should be a 10 :P What i want to find is the total moment at the mid point. I know how to find...

Hi, I just wanted to know if I have answeedthis question correctly, if not where I have gone wrong. Thank you. [PLAIN]http://img148.imageshack.us/img148/6245/secondmomentofarea.jpg From what I have calculated, none are acceptable, but my calculations may be wrong

Homework Statement Q: A beam has a solid square cross section of 100 mm and is simply supported by two supports 3 m apart. Calculate the dead load that can be safely supported when applied to the middle of the beam. * The question doesn't state material but I'm informed that it is mild steel...

When a n-type semiconductor is brought into contact with a metal, then alignment of the chemical potentials of both systems leads to band bending within the depletion layer, e.g on the semiconductor side. does the amount of band bending (change of potential) also depend on the donor...

Hello all, I'd like to check my work on this to make sure a safe lift is done. We have an 11m diameter, 35mm thick, 26mT circular steel plate to which we will add two trunions at the ends. The circular plate is welded in 4 parts and once we weld one side we have to flip to weld the other. That...

Does the effect of Gravity get bent like light around another gravitational source? If the object is close enough to the Earth does the Earth's gravitational force bent the Moon's or even the Sun's gravitational effect on that object before that "line of sight" event occurs. As Einstein's...

Homework Statement 1.What is the formula to calculate the bending moment of a beam subjected to UDL? 2.What is the formula to calculate the bending moment of a beam subjected to point load? Homework Equations Bending moment (UDL) = WL^2/8 (Kg-mm or Kg-m) Bending moment (point load) =...