Steel plate Definition and 25 Threads

If I put a very long steel plate above a coil with DC, the magnetic field above the plate will decrease because of the shielding of the steel plate. However, from the perspective of magnetci domain, some domains will be magnetized to turn to the direction of the magnetic field from the coil...

I have calculated KE_i and KE_f, took the difference between the initial and final kinetic energy of the bullet to be equal to the work spent to overcome the friction, and divided it by the distance traveled, but arrive at around 20000N. The solution should be 9.5*10^7. Not sure what else to...

i have a neobydium magnet of grade n40 , the diameter of magnet is 15mm and thickness is 10 mm , now i want to calculate the pull force between this magnet and a steel plate when there is no gap between them ; & in second case i want to calculate the pull force when i put a 0.15mm copper plate...

Homework Statement The half thin steel plate has a radius of 4 meters and a surface density of (3+r) kg/m^2, where r is the radial distance from the origin. Using calculus, find: A. its area B. its mass C. Its center of mass with respect to the origin shown, D. It's rotational inertia about the...

The picture below shows an image of a bed from a 3d printer, which I intend to equip with an array of 15 x 3 mm Neodym magnets to hold down a steel plate. The steel plate itself is not and can not be equipped with magnets. Theres a heated aluminium bed between magnets and steel plate and the...

Homework Statement Two lengths of steel plate 100mm wide and 15mm thick are riveted together by a single 18mm diameter rivet. If the joint carries a tensile load of 8kN calculate: a) The shear stress in the rivet b) The tensile stress in the perforated plate Homework Equations stress = force...

Question: The coefficient of restitution for ball colliding with steel is 0.95. If ball is dropped from height h sub o above steel plate, to what height will the ball rebound? Please help me with this one, Is there a formula for this? all I know is e equals velocity of the first object...

Hey folks, I'm building this steel platform to support a furnace, the furnace will weigh about 350kg and cover approximately the area shown below: The platform itself is mild steel sheet, 100cm x 100cm x 4mm thick. Each castor is rated for 300kg each. The problem I'm having is that even with...

I have a 300 mm diameter hole in the ground surrounded by concrete. This hole will be covered by a steel plate. I need to get a machine of weight 2.5 tonnes across this hole safely without any bending of the steel plate. How would i calculate the required thickness of the plate? Thank you Ron.

Hello, I am trying to figure out how to determine how much a simple steel plate will bend with "x" amount of weight on it. I have searched the internet looking for some good descriptive information for my studies and am having a hard time figuring it out. I understand that it is probably...

Homework Statement A circular steel plate of radius 15 cm is cooled from 350 C to 20 C. By what percentage does the plates area decorate ? Homework Equations A=∏r^2 Af = Ai (1+2∂ΔT) specific heat of steel = 12 x 10^-6 The Attempt at a Solution r = 15 cm = .15 m Ai = .070685 m^2...

Homework Statement If a steel plate with a hole of 10 cm in diameter is heated 35 degrees kelvin, what will the new diameter be? ##\alpha_L = 13 \cdot 10^{−6} K^{−1}##Homework Equations ##\Delta L = \alpha_L \cdot \Delta T \cdot L## The Attempt at a Solution If I understand the...

Hi A steel plate 2 cm thick is maintained at a temperature of 550 C at one face and 50 C on the other . The thermal conductivity of stainless stress at 300 C is 19.1 W/mK . Compute the heat transferred through the material per unit length ? Answer : - we have q = - k . A ...

Hello, For my setup I'm looking for a method to heat a small stainless steel plate (50x50x10mm(2x2x0.4 inches), AISI 304) to 900ºC (1652ºF). The plate is fixed onto the frame, so it can't be removed. I've found some induction heaters, but they were all too expensive. Anyone got some...

Homework Statement An 800 g steel plate has the shape of the isosceles triangle shown in the figure. What are the x and y coordinates of the center of mass? https://www.physicsforums.com/attachment.php?attachmentid=13559&d=1208292919 Homework Equations x=1/M ∫ x dm [b]3. The...

I am using an 8" steel plate as a beam that will undergo moment forces and deflections. I am not sure how to calculate the maximum moment capacity of a plate like this. I think that the deflection would = Fb*L^3/(48*E*I). Does this look correct? I know how to calculate the max moment in the...

I'm using the basic deflection equation to determine how thick a plate of steel would have to be to support a load of approximately 1300 N in a 3 point bend, with surface dimensions of of 420 x 630 mm. I = bh3/12; δ = FL3/(C1EI); Esteel = 200 GPa = 200 N/mm; δ = 50 mm (arbitrary); h3 =...

i don't know if i am in right part of forum. i want to build some sort of wind turbine for a school project. all the diy project are 6 or 9 coils with 8 or 12 magnets. the coils are on non magnetic board and the magnets on steel plate. why on steel, the steel plate increase the total...

Hello All. I'm trying to evaluate a design based on first principles. I have 2 trusses made from RHS (simple A frame) between which I wish to tech-screw a sheet of 2.9 mm galvanised sheet. Loading will primarily be from material (i.e. soil to a max depth of 400 mm) being placed on the...

Hi Kind of a random question, I know, I just think this is a great place to get a answer. Anyway, I have a single cab pickup truck. So of course I have a very light back-end, to compensate for this in the winter for more traction I have been putting in a solid steel plate my Dad bought...

Homework Statement I found that the steel plate weighs 23.1 kN from using the volume and density of steel. The length of L1=3.2m, L2= 3.9m. The angle on the left, theta, equals 94.4 degrees and alpha equals 54.9 degrees. I am just confused on how to find the tension in the cables. If someone...

Hi I needed to design for a steel plate of S275 steel (275 N/mm2) that will resist a tensile force = 2 x 65 kN = 130 kN. The steel plate must not bend due to this tensile force = 130 kN. And I need to determine the minimum steel plate thickness that will resist the bending (due to the...

Homework Statement A steel plate has a circular hole with a diameter of 1.000 cm. In order to drop a Pyrex glass marble 1.003 cm in diameter through the hole in the plate, how much must the temperature of the system be raised? (Assume the plate and the marble always have the same temperature)...

Mini Cathodically-Protected steel plate... Hi guys/gals: I am doing a project on cathodic protection. If I have a steel and zinc plate, does bolting them together with nothing at the interface suffice as Cathodic Protection? It looks too simple to be true. So I need your help to validate the...

A steel plate of 10 cm square or (100 sq cm) is .25cm thick. How much force is need to distort its edges by 0.04 cm. sheer modulus for steel is 80 * 10^9 n/m^2, Plz Help Thanx