Solved

question in fracture

Posted on 2011-03-07
7
353 Views
Last Modified: 2012-08-13
I am trying to answer the following question :

Why there might be significant scatter in the fracture strength for some given ceramic material and why fracture strength increases with decreasing specimen size ?

any input qwould be appreciated.
0
Comment
Question by:c_hockland
  • 4
  • 2
7 Comments
 
LVL 27

Expert Comment

by:aburr
ID: 35064854
Ceramic material is not very uniform.
In a small sample there is less chance of having a microscopic crack.
0
 

Author Comment

by:c_hockland
ID: 35064873
Aburr , is there any equation ( i guess with the size in the denominator) that shows that as the denominator decreases the result increases ?
0
 
LVL 27

Expert Comment

by:aburr
ID: 35064915
"is there any equation"
no. There are too many different kinds of ceramic.
The ceramic for cooking pots is quite different from the ceramic on heat shield tiles for the shuttle.
0
Find Ransomware Secrets With All-Source Analysis

Ransomware has become a major concern for organizations; its prevalence has grown due to past successes achieved by threat actors. While each ransomware variant is different, we’ve seen some common tactics and trends used among the authors of the malware.

 
LVL 27

Expert Comment

by:aburr
ID: 35065154
you could try
strength = k*(1 + c*e^(-size))
On the other hand it probably is not worth the effort to use that equation.
0
 

Author Comment

by:c_hockland
ID: 35065233
i was thinking something like this...see attached
Untitled.png
0
 
LVL 27

Accepted Solution

by:
aburr earned 500 total points
ID: 35065459
Probably better than mine
0
 
LVL 16

Expert Comment

by:dhsindy
ID: 35113230
In materials lab mixing and curing concrete under ideal conditions shows that the breaking strength of samples varies widely.  I couldn't have been more amazed when I took this class.  I would be surprised if ceramics are more uniform.
0

Featured Post

Find Ransomware Secrets With All-Source Analysis

Ransomware has become a major concern for organizations; its prevalence has grown due to past successes achieved by threat actors. While each ransomware variant is different, we’ve seen some common tactics and trends used among the authors of the malware.

Join & Write a Comment

Suggested Solutions

Title # Comments Views Activity
pressure on a wall 10 53
Probability Calculation 2 42
Geomentry-Fundamental concepts-Angles 3 55
Calculating Probability 18 62
Foreword (May 2015) This web page has appeared at Google.  It's definitely worth considering! https://www.google.com/about/careers/students/guide-to-technical-development.html How to Know You are Making a Difference at EE In August, 2013, one …
Article by: Nicole
This is a research brief on the potential colonization of humans on Mars.
Here's a very brief overview of the methods PRTG Network Monitor (https://www.paessler.com/prtg) offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…
This video shows how to remove a single email address from the Outlook 2010 Auto Suggestion memory. NOTE: For Outlook 2016 and 2013 perform the exact same steps. Open a new email: Click the New email button in Outlook. Start typing the address: …

758 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

21 Experts available now in Live!

Get 1:1 Help Now