Aircraft Materials and Design

        Most modules in this course will contain discussion activities that provide opportunities to explore important concepts from the reading assignments. These discussions are multi-topic: each discussion activity will contain more than one discussion topic. Please refer to the discussion rubric for information on how your posting and replying to a classmate’s post will be graded. In this discussion activity, address one of the following topics in your original primary posting: 1. Describe what CREEP is and why it's an important concept in this course. 2. Describe the different issues related to airframe structures having insufficient rigidity.