Member AB spans two supports that are a=2.6m apart. It is subjected to a distributed load of w=1000N/m and a concentrated moment of M=830 N*m as shown. The member will have a square 27mmx27mm hole in its cross section oriented at a 45 degree angle as shown. If the material that conposes the member must not be stressed above 190 MPa find the minimum allowable outer diameter of the member b