In this lesson, it is shown how the integration is performed to evaluate the different terms of the weak form. The integration can never be as easy as shown in previous lessons, and there is a need for a different integration approach, such as numerical integration. When it is needed is discussed, along with Gaussian quadrature and the quadrature rule. The use of Gaussian integration with different numbers of integration points is shown.

This lesson is part of the Ansys Innovation Course: FEA - Boundary Conditions. To access this and all of our free, online courses — featuring additional videos, quizzes and handouts — visit Ansys Innovation Courses at [ Ссылка ]. This course was created for Ansys Innovation Courses by Professor Krishna Garikipati and Dr. Gregory Teichert, University of Michigan, in partnership with Ansys.

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