The overall pattern of elements is referred to as the finite element mesh.Īnd this pattern will be unique to each new problem. We replace the single complicated shape with an approximately equivalent network of simple elements. The finite element method takes advantage of this fact. However the equations can be solved for very simple shapes like triangles or rectangles. The equations describing the distribution of structural stresses are known but they can’t be directly solved for a complicated shape such as a bridge. Finite element breaks a complex problem into simpler problem and uses a mathematical glue to join the solutions.Īn engineer designing a bridge will need to know how the proposed structure will behave under load.