Haigh-Westergaard Stress Space Calculator Leave a Comment / By GULSHAN SHAFI / March 7, 2024 Haigh-Westergaard Stress Space: graphical representation for multiaxial stress states.The formula is given by: where: σH​ is the Haigh-Westergaard stress, σx​ is the normal stress in the x-direction, and σy​ is the normal stress in the y-direction. Related