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Down wash is created by a spanwise movement of air over the wing, due to pressure difference between the top and the bottom wing. For equilibrium at the tip, vorteces are created, the familiar contra rotating vortex you see on formula one car. For infinitely long wings - as said above, the...

Some basic descriptions. Creep - Plastic strain induced by temperature and stress for a period of time - normally for steels below 400 deg C not a problem. Failure = accumataled creep strain = strain at rupture. Creep more responsive to temperature than stress. Not easily analysed as stress...

Hi All, I am a competent Matlab user wanting to use the matlab c++ math and graphics libraries directly in Builder. I thus do not want to use Mbuild - to build stand alone aplications. However I have trouble just to run the include statement #"Matlab.hpp" as the STL library give...

Just be carefull with connecting a beam to the shell normal, a shell has no rotational stifness normal to the shell. I.e. the beam will not submit any torsion to the shell. Regards, Gerald

Hi - BS 6759 is more inline with BS 1113 (water tube boilers), you must stick to your manufacturing code that you are using, unless it refers you to BS 6759 for the rules. Over and above the code you must also be aware of your countries statutory requirements. Regards, Gerald

If you go over the standard opening sizes - you will have to recalculate the flange in accordance with ASME VIII, because you will be out of the limits of B16.5 Regards, Gerald