The 'Williot diagram' in structural analysis is used to find:
Choose the correct answer
Shear force in beam members
Joint displacements in a truss by graphically compounding member deformations (elongations/shortenings)
Bending moment in continuous beams
Reaction forces in arches
Correct Answer
B. Joint displacements in a truss by graphically compounding member deformations (elongations/shortenings)
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Williot (1877) diagram: graphical method to find joint displacements in a truss. Draws elongation and shortening vectors of members to find relative displacements between joints. Companion Mohr correction corrects for rigid body rotation. Now replaced by matrix methods but historically important. Fast for simple trusses where member forces are known.
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