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Understanding the Importance of 3D Element Shapes and Order in Ansys Mechanical — Lesson 2

Geometry can be meshed with elements of various shapes and orders. Hexahedral and tetrahedral elements are the most widely used element types. A common notion is that hexahedral elements are better than tetrahedral elements. In this video, we discover whether this statement is always true by understanding the behaviour of different element shapes and orders. We note that meshing a body with hexahedral elements is not always possible for complex geometry, and a good quality higher order tetrahedral mesh performs better and provides more accurate results compared to a distorted hexahedral mesh. We also discuss why Ansys Mechanical chooses the default elements that it does, and why those defaults need not be changed. // INTERESTED IN MORE? Visit Ansys Innovation Courses for free courses, including videos, handouts, simulation examples with starting files, homework problems and quizzes. Visit today → https://bit.ly/3Eo8esU // DOWNLOAD FREE ANSYS SOFTWARE Ansys offers free student product downloads for homework, capstone projects, student competitions, online learning and more! Download today → https://bit.ly/32eEcuR // QUESTIONS ABOUT THIS VIDEO OR USING ANSYS? Get help from Ansys experts and peers through the Ansys Learning Forum. Search for answers to common questions, browse discussion categories or ask your own question. Visit today → https://bit.ly/3qsytK2 // STAY IN THE LOOP Follow our Ansys Academic LinkedIn showcase page for updates on learning resources, events, job opportunities, cutting-edge simulation content and more! Follow today → https://bit.ly/3Bbaaow 0:00 - Intro 15:59 - Finding Sweepable Bodies in the Mesh 16:26 - Edge Sizing 16:43 - Inserting Mesh Method to Get a Tetrahedral or Hexahedral Mesh 17:11 - Contact Sizing 18:03 - Creating and Editing Section Planes 20:32 - Node and Element Count for Each Part