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.
To file your Canadian income taxes online you first have to prepare your tax return using a commercial tax preparation desktop software package, a Web application or a product for an Apple or Android mobile device.ligibility to File Taxes Online. Although most income tax returns can be filed online, there are some restrictions. For example, you cannot use NETFILE. to file a return for a year before the 2013 or 2014 tax years.