Deformation Definition and 175 Threads

Homework Statement A large book has forces of magnitude 14 N applied in opposite directions to two opposite faces of area 42 cm2. The thickness of the book (L) is 2.0 cm. The deformation angle (g) is 8.4°. 1) what is change in X? 2) What is young's modulus for the book...

Hi Firstly I'm begginer level at physics, but I'm thinking for days about this problem: how change tha ball shape when it collide with a wall. I'm looking for books etc on the net, i found several about deformation but all i found are very short. The best is write about usually the...

Homework Statement Shaft AB is fixed at point A and is subjected to a torque T = 2.5 kN·m applied at point B and an axial force P = 30 kN applied at point C. The actual shaft specifications (type of material, prismatic / changing cross sections are left up to us and is NOT the point of...

I am trying to predict elastic wheel deformation. I am not quite sure how to do it. How might one approach the problem? Take a steel wheel: 6 in. diameter, 2 in. thick, with a contact force of 1000lbs E = 30,000,000 psi Poisson ratio: .27 Would one calculate this in finite layers...

Deformation of solids, please help! The question is: 1/ Show a qualitative knowledge of typical behavior of copper, glass and elestomers. 2/ Quantitative treatment of deformation in one dimension including work done; experimental determination of the Young modulus for a metal in the form of...

Hi! I have a question concerning General relativity. I am not familiar with tensor mathematics but as I understand lasting deformation can be achieved by applying two counteracting forces to material in different places. If tensors are used to describe curvature of spacetime and one of the...

Hello, I'm a bit confused here about this topic. I can't seem to find a proper book on it so reading loads of papers of try and get a grip on it. I had come to the understanding that the high tensile and yeild strength developed here was due to the subgrain/micrograin size and the partial...

1. The total cross-sectional area of the load-bearing calcified portion of the two forearms bones (radius and ulna) is approximately 2.16cm^2. During a car crash, the forearm is slammed against the dashboard. Tha arm comes to rest from an initial speed of 81.9km/h in 7.72 s. If the arm has an...

Hi, I want to learn that do atoms or crystals dislocate in the plastic deformation of metals.

Hi everyone, I'm having a bit of difficulty interperting the results of an ANSYS model I'm currently running. This is of a small, thin piece of metal (0.018" in thickness, ~1"x1" length x width), that I am fixing at one end and displacing the other end ~0.015". Essentially this is a...

Hi all; Hope it's the right place to post this, so I am missing a report from the classes I was absent from and I can't find help anywhere... Here's the result of the experiment: http://img300.imageshack.us/img300/5452/plasticdeformationjx8.jpg These are thin pieces of aluminium that had...

A stainless-steel orthodontic wire is applied to a tooth. The wire has an unstretched length of 3.1 cm and a diameter of 0.22 mm. If the wire is stretched 0.10 mm, find the magnitude and direction of the force on the tooth. Disregard the width of the tooth, and assume that Young's modulus for...

Please prove that , macroscopic strength rate=(burger's vector)*(dislocation density)*(average dislocation density)

Homework Statement I have a lab report where I have to plot a stress-strain diagram for 2 beams. We apply an increasing load at midspan and record the deflection. I have to find the strain so I can plot the diagram. Also, the diagram willl be use to find the modulus of elasticity so I can use...

Experiment with a family of paths with common endpoints, say z(t) = t + \iota a sin(t) 0 \leq \ t \ \leq \pi, with real parameter a. Integrate non-analytic functions (Re(z), Re(z^2), etc.) and explore how the result depends on a. Take analytic functions of your choice compare and comment...

Please tell me what is the quadrupole deformation of a nucleus?

How can a smooth deformation of a Lorentzian manifold possibly create one or more singularities?

I have a question. Let's say a car is moving at 100 miles an hour and hits a 15 inch thick steel beam, the car would most likely go flying back and get deformed (assuming the beam is being held into place somehow, like being bolted into the ground or something). Based on my understanding of...

Greetings, Earlier this afternoon I managed to ruin a perfectly good plastic container in a microwave oven by unwittingly deforming it. I curious as to why it happened. All I did was warm it (and the chilli inside it) for about a minute with the lid firmly secure. I've been told this was a...

I've been presented to the following problem: A tennis ball can achieve a speed of 100 km/h. During the contact between tennis racket and ball the ball's dimension in the direction of movement is halved. Estimate how long ball and racket are in contact with each other. It can be presumed that...

Hello All, Here is my asking: A rubber ball (blue) is put between two horizontal planes (in red). There is also a deformable cylinder (green) around my ball and this cylinder is filled with water (the cylinder contains the ball and water). 1/If a force/mass is applied on the top of the...

A copper cylinder and a brass cylinder are stacked end to end, as in the drawing. Each cylinder has a radius of 0.22 cm. A compressive force of F = 6450 N is applied to the right end of the brass cylinder. Find the amount by which the length of the stack decreases. Is F=Y(change in L/L0)A the...

Hello everyone I came across a few (relatively standard) problem in elementary classical mechanics... A mass A is traveling with a constant intial velocity (v_{A})_{1} and a massless relaxed spring (spring constant = k) is attached to the mass A. A second mass B is traveling with a...

I am designing a machine called a Ring Expander. Simply put, it's a machine used in metal forging operations to stretch metal rings (15 x 15cm cross section, 30cm inside diameter, 60cm outside diameter) by about 20mm on the diameter. It does this by forcing a cone through a set of jaws, which...

hey, i was just wondering some stuff about the orbit of planets in our solar system. is when passing jupiter, for example, the orbit of Mars deformed, turned into an ellipse? if so, does this mean that Mars is getting closer and closer to jupiter, or is there something that will keep Mars from...