Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Suppose you are a materials engineer working for a beverage company and have been asked to identify what material should be used to minimize the cost of fabricating soda containers. For ergonomic reasons the company has decided to use a cylindrical container with a radius of R = 3.25cm, and a height of H = 12cm. Assume that the top and bottom of the container are to have the same thickness as the sidewalls. Also, for simplicity, assume that the container opening can be added at no additional cost after the container has been made (thus, the container is assumed to be a hollow cylinder closed at its ends). A diagram of the cylindrical container is provided below in Figure 1a.
The maximum stress on the walls of the cylindrical container will be the hoop stress, σh. The hoop stress acts in the circumferential direction and is shown in Figure 1b. The equation for the hoop stress is given as σh = PR/t, where t is the thickness of the walls of the container and P and R are the internal pressure and radius of the container, respectively. Given that the maximum pressure exerted by carbonated beverages on the internal walls of the container is 500kPa, and that the container must have a safety factor of two such that the condition ðœŽh < 2·ðœŽy (where ðœŽy is the yield strength of the material) must hold: i. Derive an expression for the cost of one container in terms of the price of the material it is fabricated from, pm, which is available in units of [$/Kg]. ( Note: the volume of a hollow cylinder ~ 2Ï€RHt when t is small compared to R ).
what is the velocity of the cart when the bullet becomes embedded int he terget? during the firing, the man remains at the same position on the cart. neglect rolling resistance of the cart.
block a and b weigh 100 lb and 60 lb respectively. if block a has a center of gravity at g as shown determine the
At the exit, the pressure is 113 kPa and the temperature is 69 degrees C. Determine the mass flow rate, the exit velocity and the area of the exit.
Calculate the average square distance between the particles and plot its ratio to the time step . This is the diffusion/dispersion coefficient.
two tanks are connected by a valve and line as shown below. the volumes are both 1 m3. tank anbspcontains r-134a at
For a pump in the basement which must deliver water to a bucket on the floor of the upper mechanical room, what is the minimum pressure in psig you will see at the pump discharge.
The external heat transfer coefficient is h=10 W/m^2*K. What is the rate of heat loss to the ambient?
Calcium oxide (CaO) is formed by decomposing limestone (pure CaCO3). In one kiln the reaction goes to 70% completion. What is the composition (by mass) of the solid product (CaO) withdrawn from the kiln? (Hint: there will be two separate product s..
Consider two-dimensional flow over the double-wedge airfoil shown. Find the lift and drag per meter span acting on the airfoil and sketch the flow pattern. Find the pressure acting on all surfaces.
a construction crew lifts approximantely 560lb of material serveral times during the day from a flatbed truck to a 32
A steel alloy to be used for a spring application must have a modulus of resilience of at least 2.07 MPa (300 psi). What must be its minimum yield strength?
You are to supply a design for an engine room crane which will provide maintenance support for the main engine. Your design should include the rails the crane will sit on.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd