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.
FAQ. Q: I file my tax returns on time in Canada (or the U.S.) where I live, and may not meet the filing threshold to file a return in the other country from which I have income.: Yes. If you had income from the other country and may be required to file, or if your income is eliminated by the operation of a tax Treaty or exlusion, failure to file will leave that year open in the other country while your home country return is closed by statute in three years.