Construct the load displacement diagram, Mechanical Engineering

Assignment Help:

A suspended walkway in an underground cavern consists of a deck supported by three tie rods placed symmetrically about the centre as shown below:

257_Determine the residual displacement.png

The rods are each of cross-sectional area 100mm2, are made of steel (E = 200GPa) and can be assumed to behave in an elastic-perfectly plastic fashion. The central, longer rod yields at a stress (σyc) of 500MPa and the outer, shorter rods yield ( σyo) at 250MPa.

The walkway is to be designed so that an alarm is triggered when the first rods yield, but before general yield in the suspension. It is therefore important to now the downward displacement, δ as a function of stress in the rods.

(a) Find the walkway loads and the corresponding downward displacements at which yield first occurs and at which all members have yielded.

(b) Construct the load displacement diagram and select an alarm trigger point.

(c) What is the residual displacement once a load triggering the alarm has been removed.

(d) Determine the residual displacement once a load above general yield has been removed.


Related Discussions:- Construct the load displacement diagram

Laser surface treatment applications, LASER SURFACE TREATMENT APPLICATIONS ...

LASER SURFACE TREATMENT APPLICATIONS   The laser can be used to alter the surface structure of materials either with or without alloying additions as compared to alloying by

Determine number of coils and length of the spring, Determine number of coi...

Determine number of coils and length of the spring: A close coiled helical spring ought to extend by 120 mm under an axial force of 1200 N. If mean coil radius is equal to 40

Solids of mechanics, Derive the equation for pure bonding of beam (simply)

Derive the equation for pure bonding of beam (simply)

Insulation for personnel protection, Q. Insulation for personnel protection...

Q. Insulation for personnel protection? Insulation for personnel protection shall be provided as follows on all piping and equipment adjacent to work platforms or other operati

Feces collection, Feces Collection: Small aliquots of feces are freque...

Feces Collection: Small aliquots of feces are frequently analyzed to detect the presence of "hidden" blood, so called occult blood, which is recognized as one of the most ef

Power plants, explain different power plants..???

explain different power plants..???

What is hopper unit, What is Hopper unit Two hydraulically operated fol...

What is Hopper unit Two hydraulically operated folding type hoppers are provided on the front side of the machine. The capacity of the hopper is 4.25 CM.

Resultant, procedure to find resultant of several forces acting at a point

procedure to find resultant of several forces acting at a point

What are the points importants during forging design, What are the points t...

What are the points that should be kept in mind during forging design? Some of the points which must be followed while forging design are: > A radial flow of fibers or grain

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd