FE Mechanical Exam Prep 87, Springs Fasteners and Power Screws

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - How to find the equivalent stiffness for springs in series (which share force) versus springs in parallel (which share displacement). - The importance of preload in bolted joints and how the joint stiffness constant determines the portion of an external load the bolt will carry. - The critical difference between lead and pitch in power screw torque and efficiency calculations, especially for multi-threaded screws. - The conditions required for a power screw to be self-locking, which relates the coefficient of friction to the lead angle. - How to apply the correct helical spring equations for stiffness and shear stress, making sure to include the Wahl correction factor. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep