Sum of All Normal Component in Soil Mechanics is the total normal stress acting on a soil mass due to various factors such as self-weight, external loads, and pore water pressure. And is denoted by ΣFN. Sum of All Normal Component in Soil Mechanics is usually measured using the Newton for Force. Note that the value of Sum of All Normal Component in Soil Mechanics is always negative. Typically, the value of Sum of All Normal Component in Soil Mechanics lies in the range from 0 to 180.