Understanding Large Deflection Analysis Using Ansys Mechanical — Lesson 1

Structures are always vulnerable to deformations, irrespective of the nature of loading they are exposed to. However, when structures undergo deformation that is large enough to change their shape, size, or orientation it triggers certain effects that can impact a system’s response. These effects can be accounted for in Ansys Mechanical by turning ON Large Deflection. Parts that may require large deflection analysis can be found everywhere around us, from sporting goods to seals in our appliances to wind energy blades. In this video, we will be hands-on inside Ansys Mechanical showing how we solve a large deflection analysis and how it affects our analysis results. // INTERESTED IN MORE? Visit Ansys Innovation Courses for free courses, including videos, handouts, simulation examples with starting files, homework problems, and quizzes. Visit today → // DOWNLOAD FREE ANSYS SOFTWARE Ansys offers free student product downloads for homework, capstone projects, student competitions, online learning and more! Download today → // 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 questions. Visit today → // 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 → 0:00 – Introduction 4:35 – What is a Large Deflection Analysis? 6:13 – When to turn ON Large Deflection in Ansys Mechanical? 7:22 – Examples requiring the inclusion of Large Deflection Effects 9:21 – What is a Step? 10:03 – Characteristics of a Nonlinear Analysis 10:22 – What is a Substep? 11:13 – Load Increment Methods – Substeps and Timesteps 11:39 – Relation between Step and Time 12:03 – Guidelines to specify the Maximum Substeps 12:56 – Understanding ‘Predict for Impact’ setting 13:20 – Guidelines to specify the Minimum Substeps 15:03 – Effects of turning on Large Deflection