Mumbai University > mechanical engineering > Sem 7 > CAD/CAM/CAE

Marks: 5 Marks

Year: Dec 2015

The two types of method are used to demonstrate the numerical convergence of the solution:

1. h – method
2. p – method

The h- and p- versions of the finite element method are different ways of adding degrees of freedom (dof) to the model.

H-method

The h-method improves results by using a finer mesh of the same type of element. This method refers to decreasing the characteristic length (h) of elements, dividing each existing element into two or more elements without changing the type of elements used.

P-method

The p-method improves results by using the same mesh but increasing the displacement field accuracy in each element. This method refers to increasing the degree of the highest complete polynomial (p) within an element without changing the number of elements used. The difference between the two methods lies in how these elements are treated. The h-method uses many simple elements, whereas the p-method uses few complex elements.