Stiffness Method | Lecture 2 Truss Element Stiffness Matrix in Local Coordinates + MATLAB/Octave
Автор: EngineeringTheCurriculum
Загружено: 2025-09-22
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📚 In Lecture 2 of the Stiffness Method series, we derive the stiffness matrix for a truss (bar) element in its local coordinates and implement it in MATLAB and Octave.
In this lecture, we cover:
✅ Assumptions for a truss/bar element (axial forces only, pin connections, linear elasticity)
✅ Degrees of freedom (DOFs) and their role in the stiffness method
✅ Deriving stiffness influence coefficients step by step
✅ Assembling the 2×2 stiffness matrix for a bar element
✅ Implementing the formulation in MATLAB/Octave code
This lecture builds directly on the introduction and sets the foundation for applying the stiffness method to larger truss, beam, and frame structures.
👷♀️ Delivered by Dr Margi Vilnay – Senior Lecturer in Structural Engineering, Chartered Engineer, and Senior Fellow of the Higher Education Academy.
📺 Watch the full Stiffness Method playlist here: http://bit.ly/3VuvFfk
🔔 Subscribe for the complete series and more tutorials in structural analysis.
#StiffnessMethod #DirectStiffnessMethod #TrussAnalysis #StructuralAnalysis #FiniteElementMethod #CivilEngineering #StructuralEngineering #MATLAB #Octave #EngineeringStudents #EngineeringTutorials
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