Shear Definition and 575 Threads

kindly help me with this problem. i can't solve for the reactions and draw the shear and moment diagrams. can you solve it for me? pls help me. thanks in advance.

So I'm taking a Strengths of Materials class right now (aka Mechanics of Materials) and my teacher absolutely sucks. We ask him questions but he doesn't have answers, so in turn I have no idea what is going on and why the book does what it does. Right now we're working with I-beams and some...

I want to calculate the maximum shear stress, that two surfaces joint by a single lap joint, would be able to take. I am going to suspend one surface from a rigid supoort and then put the force on the other surface downwards using weights. I am assuming that material will be able to take...

http://folk.ntnu.no/stoylen/strainrate/mathemathics/ This page shows how to find shear strain in three dimensions. I understand how they found the shear strains as x and y components from dividing the change in length by the original length. But from the line "From the figure, it is...

Hi. I've been given this to calculate the support reactions but I'm not sure how to handle the increasing udl. And how would this be shown on a Bending moment and shear force diagram?? Also with non increasing Udl's when calculating the reaction is it best to change the udl to one force...

if a beam has a shear force limit of x and a bolt that is passing through the beam has a shear force limit of y and y < x would the maximum allowable shear force for the whole system become y?

Homework Statement http://imagebin.ca/img/uzuDsi.jpg and by maximum it means in magnitude Homework Equations I figured the best (easiest/quickest) method would be to draw the shear force diagram. When I originally did this problem I came up with equations for M and V by dividing...

A black Rhinoceros weighs in at 1400 Kg and is running 11 m/s and has to stop in 1s or fall into a ravine. In order to accomplish this, the Rhino places his front legs directly out in front of him at a 60degree angle to the ground. What is the compressive and shear forces that the front legs...

:smile:Hey guys. I just get some information about true shear strain and simple shear strain from the lecture of engineering mechanic material .And i just want to know the physical meaning of true shear strain and simple shear strain.As a result, i have found some reference books ,but i still...

Homework Statement at a point in a stressed body, there are normal stresses of 95 MPa (tension) on a vertical plane and 125 MPa (tension) on a horizontal plane. determine the normal and shear stresses at this point on the inclined plane a-b (please see attachment) the solution should be...

the shear stress in each bolt is to be limited to 250mpa. i need to determine the minimum diameter of the bolts and the distance from the end edge of the centre plate to the centre of the bolt holes. All plates are 6mm thick and the punching shear stress for the centre plate is not to exceed...

I need to determine the average shear stress developed in the glue bond. P=50kN and P2=80mm http://users.on.net/~rohanlal/Untitled99.jpg My attempt: stress=force/area stress=(50/(200*80))+((50/2)/(200*80))*2 Is this correct?

Can anyone tell me how to find the angle between tensile force and slip direction under these conditions:- 1. Tensile force is applied along [010] direction for a single crystal of iron(BCC). 2. rss is directed along (110) plane and in a [-111] direction when tensile stress of 52 MPa is...

Homework Statement Tau = (some constant) * Nu Homework Equations Shear stress = (some constant) * Kinematic Viscosity The Attempt at a Solution n/a Thanks!

Does anyone know how to determine what size/type of pipe/tubing would be necessary to withstand given wind speeds? Specifically, I'm wanting to build a "megatree", an outdoor Christmas tree made simply by stringing lights from the top to the bottom in a conical shape. I'd like a 20' + tree...

Hi sorry I am rather new to all this but I was woundering if I could get some help? Im currently studdying for my Uni's resits over the summer which fall in just a few weeks time. Iv started to go through some of the old past pappers and I've got stuck on the same bit over and over again...

Homework Statement A beam loaded by a central point load deflects a quantity, e.g. d. If an identical beam is laid on top of the first beam and the same loading is applied the deflection drops to d/2. In this loading situation the ends of the beam are not aligned. When the beams are joined...

fully developed flow liquid of dynamic viscosity 2.9x10^-3 Pa.s and relative density 0.9 in horizontal pipe of diameter 12mm, length of pipe=200mm and mean velocity is 0.5m/s To find the wall shear stress, i used τ=μ.du/dy = (2.9x10^-3)(0.5/0.012) = 0.121Pa The answer is 0.968Pa, where am...

I require some help please. I know : Rule: T/J = t/r = GΘ/L L = length = 0.33 r = radius = 0.025 D = diameter = 0.5 The starting points and stages would help. I have to hand this in next wednesday, i thought i would ask the community. ------ Determine the distribution of...

Homework Statement Just a quick question: Wikipedia tells me that due the shearing stress, the yeild strength of Stainless Steel is 520Mpa But how can i find out the Yeild strength of a 100mm long rod with diameter 10mm. Is the info for wikipedia based on a 1mx1mx1m cube? or some...

Just a quick question: Wikipedia tells me that due the shearing stress, the yeild strength of Stainless Steel is 520Mpa But how can i find out the Yeild strength of a 100mm long rod with diameter 10mm. Is the info for wikipedia based on a 1mx1mx1m cube? or some sort of SI unit. Cheers

PLEASE! Shear Flow HELP We are doing shear flow problems and my instructor has been unable to explain the topic in a general enough way to apply effectively to all problems. Our (my class) difficulty is understanding in the formula q=QV/I where the variable Q=yA' what to use for A'. It...

!Shear Diagram! Homework Statement I have posted the problem below. I am looking to find P max. My professor wants us to draw a shear diagram to find out where it will occur. From equilibrium equations I have found that Ay=By=P+0.6 kip I am having trouble drawing the diagram. I...

For a light 5m beam carrying a central point load of 20 kN, calculate: a) the maximum shear force (iv got that) b) " " bending moment im stuck on the bending moment, i can't remember how to work it out.

Homework Statement The figure shows the cross-section of a lipped channel; http://img149.imageshack.us/img149/6324/88754244yh7.th.png I need to locate the shear centre based this. Homework Equations Second moment of area / inertia; Ixx = (1/12)bh^3 + Ay(bar)^2 First moment...

Homework Statement http://img150.imageshack.us/img150/756/17311663go9.jpg The Attempt at a Solution I wasn't 100% sure whether this should be here or in the Engineering section, hopefully I've got it right. Anyway, I'm fairly unfamiliar with this type of problem and basically I'm just...

Hi Everyone, I am having a problem finding the shear stresses in an annular plate. The problem is as follows. I have an annular plate with outer radius a, inner radius b. Outer and inner edges are fixed. I also have an annular line load at radius r. I am trying to calculate the shear...

Hi Im currently doing an HND in chemical engineering and everyone in my class has to do a project of their own choice. Iv been doing a bit of reading on shear thickening fluids and their application to kevlar to increase its strength against ballistics. The STF is made up of silica particles...

So I got the diameter of the pin at a no problem. For some reason I am screwing up the Force at B. I thought my reasoning was correct, but I am coming up short. The answer is larger then what I an getting, so my F_BC must be too small, thus I am not accounting for something. Here is...

I need an equation for shear force ASAP I am finding average shear stress . i have the equation for that T=V/A T being average shear stress A being area and V being Shear force. Thanks

Shear and Bending Moment Diagrams! Homework Statement Homework Equations Newton's 2nd and 3rdThe Attempt at a Solution So my main confusion is this: I found the reaction at A to be 19 kN If I make a vertical cut through some arbitrary point along the beam and and do some analysis I get...

I'm looking for reference material. I need a good photo of a landform that is a direct result of tectonic shear. Canadian content strongly preferred - haven't been able to find any online.

I would like to derive a relation for shear stress on a conical bore shaped fluid element. Essentially, I have flow going through a converging nozzle. I know variables in this include length of the nozzle, inlet and outlet diameters and pressures and nozzle angle. I've done a force balance on...

i need to find max shear stress at a point on a plate (with a hole) under tension. i found using experimental data the principle strains at the point but i need to find the max shear stress using this data to compare it with a result found analytically. any suggestions?

Homework Statement A rectangular two-story building with a wood roof and floor system and masonry walls is analyzed to determine seismic forces. Given: I=1, roof dead load D=15psf, floor load=25psf including partition load. Exterior wall dead load D=80 psf along both long and short walls...

I have a question in an assignment and am using the Θ = LT/JG equation to find the angle of twist in an I section beam to be used in a monorail. I have all other figures to put in the equation but am not sure where i get G value from Help :o) Thank you

Homework Statement (Q) A beam 4m long is supported at the left hand side by a hinge support and on the right by a roller support. It is under a non-uniform load intensity throughout by a load intensity given by: w = 25Cos(pi x/8)kN/m. Write equations for the shear force and the bending...

shear stress, what is a flat tie bar...? Homework Statement two lengths of flat tie bar are connected together by a lap riveted joint with three rivets each 10mm in diameter. Calculate the maximum pull that can be applied to the tie-bars if the shear stress in the rivets is not to exceed...

Homework Statement It's number 4 I'm doing Homework Equations ΣmomentA= 0 ΣFx= 0 ΣFy= 0 The Attempt at a Solution i've got the correct answers i think, but I'm not sure how to draw the shear force and bending moment diagrams because of the moment that's included. i did draw...

attached is my problem. any help will be appreciated! thanks!

Homework Statement click on link for picture of problem http://i21.photobucket.com/albums/b300/DrGame/morhs.jpg The Attempt at a Solution Well I'm just really confused because you have two torques, and you can't draw morh's circle that way.. I've tried about 3 hours of various things...

Hey, got a bit of a problem; got a few questions on wind Shear in Dams & retaining walls. Can anyody help http://img296.imageshack.us/img296/9366/image0003xb2.jpg Thanks Andy.

Shear thread formula? my group has been told to figure the shear stress of a thread for a hydraulic press which pushes at 100t, we have figured it will pull at 30t using the ratio of the areas from the pistions. just we need to figure the shear stress on the thread if it was to pull. we don't...

Hello, I am working on a project where I will have to do some shear cell testing, I have some basic under standing (very basic). and I have done some research on the internet. I have a shear cell tester. it is very basic, geared motor with a rod to push on sample , which is under a weight. I...

What is shear flow? Hat this flow viscosity? .... Thank you

I'm :confused: I'm OK at electrical theory but mechanical just doesn't compute. I have the following question if anyone can help. Determine the external diameter of a tube needed to transmit a torque of 30KNm if it has an external diameter twice that of its internal diameter. The sheer...

Homework Statement Find the shear and moment diagram. Homework Equations dV/dt = -w(x) dM/dt = V(x) The Attempt at a Solution See attached. My problem is that I'm getting 0.06 kip*ft at the end of the beam, and I don't think that's right.

Homework Statement Oil of Density 888kg/m^3 and viscosity 0.8Pa*s is flowing in a horizontal pipe of diameter 0.15m. The local flow velocity at the centerline is 10m/s. find the shear stress exerted by the oil on the wall of the pipe. Homework Equations tau = -eta*(dv/dy) The...

Homework Statement Hey everyone. I was practicing some problems, and I came across one that seems pretty simple, yet I am having difficulty proving the answer. The question asks us to show that a state of pure shear causes no volume change in linear elastic deformation. I have a very good...

What do geophysicists mean by depth variation in the shear wave anisotropy of the Lehman discontinuity? And why is there none under the oceans but some under the continents?