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.
Most Canadian residents are required to file an income tax return for the income they have earned in the previous year. You must file a return if you owe taxes to the government or if you have earnings on which you are required to make contributions towards the Canadian Pension Plan (CPP) .There are other criteria for filing taxes as well.f you owe tax to the government and/or don't file your taxes by the due date, you will be liable to pay interest and penalties to the Canada Revenue Agency (CRA) . Compound daily interest is charged on the unpaid amounts starting from May 1, at a prescribed interest rate.