( ( ( Stress resultant ) ( associated ( with ( distributed forces ) ) ) ) ( ( called ( shear force ) ) . ) )
(ROOT (S (NP (NP (NN Stress) (NN resultant)) (VP (VBN associated) (PP (IN with) (NP (VBN distributed) (NNS forces))))) (VP (VBD called) (NP (NN shear) (NN force))) (. .)))
Stress resultant associated with distributed forces called shear force.
(ROOT (S (NP (NP (DT The) (NN force)) (VP (VBN applied) (PP (TO to) (NP (DT an) (NN object))))) (VP (VBZ is) (VP (VBN called) (NP (NN stress)))) (. .)))