Assembly: The Global Stiffness Table by Node Pairs with SUMIFS
This lesson is part of the course
In this lesson
You list every element entry with its row node and column node, assemble the global 4 × 4 stiffness table of a spring network with SUMIFS, and check it for symmetry and zero row sums.
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Lessons in this course
- The Idea: Springs as Elements, Nodes and the 2 × 2 Element Table Locked
- Assembly: The Global Stiffness Table by Node Pairs with SUMIFS Locked
- Supports and Loads: The Reduced System, Cramer's Rule and Reactions Locked
- Bar Elements: k = E·A/L, Gaussian Elimination in Step Columns, Stresses Locked
- Distributed and Thermal Loads: Self-Weight and Temperature as Nodal Forces Locked
- Truss Elements: Direction Cosines, the Joint Table and Member Forces Locked
- Mesh Refinement: Tapered Bar with 1, 2, 4 and 8 Elements Locked
- Capstone: Checking a Colleague's Results – Equilibrium, Sensitivity, Stress Utilisation Locked