Torsional moment – a moment acting in a direction parallel to the axis of an element (e.g., a beam).
It causes shear stresses in the material, resulting in distortional deformation leading to twisting of the element’s cross-section.
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You can find more information on calculating internal forces in the article: Internal forces in beams – principles and calculations.
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OTHER TERMS
Ritter’s method – a method most commonly used to determine forces in specific truss members...
Method of joints – a fundamental method of truss analysis. Since truss members carry only axial...
Truss: a planar or spatial system composed of pin-connected members. Truss members have high...
Pin-connected member – a member connected by hinges at both ends. Such members occur in trusses,...
Internal force diagram – a graphical representation of the distribution of internal forces along,...