Evaluate secure axial load, Mechanical Engineering

Evaluate secure axial load:

A small piece of ISA (200 × 100 × 15) angle carries a compressive load, the line of action of which coincides along the intersection of the middle planes of the legs. If the maximum compressive stress is not to exceed 112 N/mm2, what is the secure axial load P? Given A = 4278 mm2, rxx = 64 mm, ryy = 26.4 mm.

2311_Evaluate secure axial load.png

Figure

Solution

Area of cross-section A = 4278 mm2

Eccentricity of load with respect of xx-axis = (71.8 - 7.5) = 64.3 mm

Eccentricity of load with respect to yy-axis = 22.2 - 7.5 = 14.7 mm

Maximum compressive stress at any section will be

= (P/ A) + (M xx/ I xx)  × y + (M yy/ I yy)  × x

or        

1783_Evaluate secure axial load1.png

Here,   rxx = 64 mm  and   ryy = 26.4 mm fmax = 112 N/mm2

∴          112 = (P/A) (1 + ((64.3 × 71.8 )/(64)2)+ 14.7 × 22.2 /((26.4)2)       

=          (P/4278) [1 + 1.127 + 0.4684]

∴          P = 184.6 kN.

Posted Date: 1/21/2013 7:22:21 AM | Location : United States







Related Discussions:- Evaluate secure axial load, Assignment Help, Ask Question on Evaluate secure axial load, Get Answer, Expert's Help, Evaluate secure axial load Discussions

Write discussion on Evaluate secure axial load
Your posts are moderated
Related Questions
Find out the thickness of the metal and the hoop stress: The cylinder of a hydraulic press has an internal diameter of 0.3 m & is to be designed to withstand a pressure of 10

Multiple Spot Welding This is a modification of spot welding, in which two or more than two welds can be obtained simultaneously from each transformer secondary. For specific pro

what desaster made chemistry

Heat generated uniformly in Stainless steel plate having k=20 W/m. 0 C. The thickness of the plate is 1cm and the heat generation rate is 500 MW/m 3 . If the two sides of the plate

A positive displacement pump is a liquid or gas to move by trapping a fixed amount of fluid or gas and then forcing (displacing) that trapped volume into the discharge pipe. Positi

Cell Covers: Each cell is covered from the top of the cell covers and the terminals projected from the cell covers. The terminals are arranged alternatively in a line.

What is the amount of air is supplied to engine via turbochargers and how their sizes vary from engine to engine ?

Ask what is hazard and how it is occuring

Q. What is Auto-Ignition Temperature? Auto-Ignition Temperature (AIT) - The auto-ignition temperature is the temperature at which a product will burn without application of any