Introduction to Aircraft Structural Analysis (Elsevier Aerospace Engineering)

Problems 535

Fig. P.18.2

P.18.3 IfthewingboxofP.18.2issubjectedtoatorqueof100kNm,calculatetherateoftwistofthesectionand
themaximumshearstress.TheshearmodulusGis25000N/mm^2.

Ans. 18.5× 10 −^6 rad/mm,170N/mm^2.