Find out maximum stress and elongation of the bar, Mechanical Engineering

Find out maximum stress and elongation of the bar:

A rectangular bar having uniform cross-section of 4 cm × 2.5 cm and of length 2 m is hanging vertically from rigid support. lt is subjected to the axial tensile loading of 10KN. Take the density of steel as 7850 kg/m3. And E = 200 GN/m2. Find out maximum stress and elongation of the bar.              

Sol.: Data, cross sectional area A = 4 cm. × 2.Scm.

length   L = 2m

axial load

P = I0KN

Density of steel     σ= 7850 Kg/m3

E = 200 GN/m2

As                        δL = PL/AE +   L2/2E

= (10 × 103 × 2)/(4 × 2.5 × 10-4  × 200 × 109) + (7850 × 9.81 × 22)/(2 × 200 × 109)

2445_Find out maximum stress and elongation of the bar.png

10 kN

= 0.0001 m                                                             

= 0.1 mm stress
( σ max) = E × strain

= 200 × 109  ×  δ L/L =200 × 109  × (0.0001/2) = 10.08 mpa  .......ANS 

  
Posted Date: 10/23/2012 1:29:14 AM | Location : United States







Related Discussions:- Find out maximum stress and elongation of the bar, Assignment Help, Ask Question on Find out maximum stress and elongation of the bar, Get Answer, Expert's Help, Find out maximum stress and elongation of the bar Discussions

Write discussion on Find out maximum stress and elongation of the bar
Your posts are moderated
Related Questions
Derive the relation for a fin insulated at the tip and the heat dissipation?


Cellulosic Electrodes In the AWS E 6010 and E 6011 series of electrodes, the protective covering is composed of cellulose (C6H10O5) and silicate binders. The cellulose decomposes

Q. What is IFD in project management? The P&IDs now reflect the next intermediate stage of development and incorporate any changes requested by the Customer during the IFA revi

Consider the power system as designed below. The duty fluid is water, and has a mass flow 0.75 kg/ s and all piping through which the liquid flows has diameter 1'', while the steam

SHIELDED METAL ARC WELDING (SMAW) It also known as Manual Metal Arc Welding (MMAW). The heat required for welding is generated by the electric arc formed between metallic elect

to find a horizontal force acting on a body which is inclined to the plane with a particular angle

when does the cyclic service apply for pressure vessels in batch plant (operation)

Explain the Creation Phase of radial drilling machine Objective:  "To generate alternative methods for providing the function, through creative thinking, brainstorming and

Principles Governing Rural Roads Design Standards: The following principles should govern in design of rural roads : (a) Rural Roads are low volume facility serving an acc