Shearing stress on stock is increased, but torsional stress is decreased.
Amandla asetyenzisiwe ukuze yenze ngathi iyathambeka ukwenza elinye icala lelungu lishebeleze phezu kwelinye icala, ngoko isebenzisa amandla okwesikere ukuqinisa okugqithayo okuthe nkqo ngawo onke amacala, andisiwe, kodwa amandla okujija ancitshisiwe.