Calculation for stress-strain carves, Mechanical Engineering

Assignment Help:

Calculation for Stress-strain carves:

 

528_Stress-strain carves for ductile materials.png

After reaching point D, if bar is strained further, a local reduction in cross section occurs in gauge length (that is, formation of neck). At this neck stress increases with decrease in area at constant load, till failure take place. Point F is called as 'rupture point. Note that all the stresses are based on original area of cross section in drawing curve of the given figure.
1. Yield strength =  1217_Calculation for Stress-strain carves.png      where (original area )  456_Calculation for Stress-strain carves1.png 

2. Ultimate strength =  1702_Calculation for Stress-strain carves2.png 
3. % Elongation = 64_Calculation for Stress-strain carves3.png

where LF   = Final length of specimen

L0 = Original length of specimen
 4. % Reduction in area =1137_Calculation for Stress-strain carves4.png

where AF  = Final area of cross section

A0  = Original area of cross section

5.  Young's modulus of elasticity, E 2141_Calculation for Stress-strain carves5.png

From the figure clastic limit is up to point B.


Related Discussions:- Calculation for stress-strain carves

Magnitude of a couple - mechanics, Magnitude of a couple: So l.: Fo...

Magnitude of a couple: So l.: For system, magnitude of couple is equal to algebraic sum of the moment about any point If the system reduces to couple, the resultant forc

Two coplanar forces are acting on the rigid body, Steps for solving the pro...

Steps for solving the problems when more than two coplanar forces are acting on the rigid body: The steps are as; 1. Check the Problem for the concurrent or Non concurren

Stress, what is hoop stress

what is hoop stress

Technical limitations of extension of screw conveyor, Technical Limitations...

Technical Limitations of Extension of screw conveyor Technical Limitations: Breakdown of hinged joint at intermediate condition of link. ?Not proper extension of coaxi

Find increase in the length of bar, Find increase in the length of bar: ...

Find increase in the length of bar: Q: Find increase in the length of bar of uniform section because of self weight. Sol.: Take a bar of cross sectional area A and leng

Dead centre -engine terminology , Dead Centre The position of the wor...

Dead Centre The position of the working piston and the moving parts which are mechanically connected to it, at the moment when the direction of the piston motion is reserved

Explain field winding - dc generator, Field winding Every pole c...

Field winding Every pole core has one or more ?eld windings provided on it to make a magnetic ?eld. Whenever they carry current, they electromagnetic the poles which pro

What is strap footing, What is strap footing? Strap Footing You have...

What is strap footing? Strap Footing You have to use cantilever or strap footings when the proximity of a property line precludes the use of other types for example an isola

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