Author Archives: Scott Lee

Hello, this presentation will go over the concept of RBE2s vs. RBE3s, explain the differences between the two, as well as a simple case study example using FEMAP.

This video goes over the topic on the recommended approach of modeling CBUSHES. Typically I have seen throughout my career whether or not CBUSHES should be modeled with length, no length, or a relatively small length. I discuss the pro’s and con’s and the recommended approach.

USC Composites Lecture: This lecture goes over composites, honeycomb composite sandwich panels, composites manufacturing, and detailed stress analysis methods for honeycomb composite structures UCLA FEM Lecture: High level discussion about FE Modeling 101 as well as some post-processing and understanding the FEM results

A common misconception I have seen throughout my career is erroneous modeling of RBE2s and RBE3s whenever performing a thermal analysis. Aerospace structures consist of both metallic and composite materials. Due to the CTE differences between the two, thermal mismatch is prevalent across the joints (i.e. whenever you have an aluminum structure interfacing with aContinue reading “Case Study – Thermal Expansion for RBE2/RBE3s”

This case study goes over a simple example for a bar under thermal loading and the concept of springs in series. This study will analyze two scenarios, -Fixed – Fixed BC’s -Adding Compliant Stiffnesses at the two ends of the bar This simple example will illustrate the concept of thermal loading for a bar, andContinue reading “Case Study – Thermal Expansion of a Bar”