Instrumented Indentation - CSM Instruments
Instrumented Indentation - CSM Instruments
Instrumented Indentation - CSM Instruments
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Creep<br />
><br />
><br />
Force, F [mN]<br />
In an indentation test, creep often manifests itself as a bowing out<br />
or “nose” in the unloading portion of the force-displacement curve.<br />
For such material, when the force is held during a certain time at<br />
the maximum force, the indenter continues to penetrate.<br />
1.2<br />
0.8<br />
0.4<br />
0<br />
Hold period of 120s<br />
No hold period<br />
0 200 400 600<br />
<strong>Indentation</strong> depth, h [nm]<br />
Nose<br />
PMMA 1mN force<br />
Loading rate 2mN/min
Change language