1 Yield strength is the lowest stress that produces a permanent deformation in a material. 2  In some materials, like aluminium alloys, the point of yielding is difficult to identify, thus it is usually defined as the stress required to cause 0.2% plastic strain. 3  This is called a 0.2% proof stress.
This year's deadline to file your personal income tax return is midnight on May 5 â five days later than the usual Apr. 30 cutoff. You can thank that nasty Heartbleed computer bug for the extension, after it forced the Canada Revenue Agency to shut down its E-File system earlier in April.his year's deadline to file your personal income tax return is midnight on May 5 â five days later than the usual Apr. 30 cutoff. You can thank that nasty Heartbleed computer bug for the extension, after it forced the Canada Revenue Agency to shut down its E-File system earlier in April.
The Canada Revenue Agency will pay you compound daily interest on your tax refund for 2014. The calculation starts on the latest of these three dates: 1  May 31 st, 2015. 2  the 31 st day after you file your return. 3  the day after you overpaid your taxes.f you file your return electronically (EFILE and NETFILE), we generally take as little as eight business days to process it. If you file your return on paper, we generally take four to six weeks to process it. We may take longer to process your return if we select it for a more detailed review.