Conference Session

Creating 'Materials' Awareness

Collection

2007 Annual Conference & Exposition

Authors

Craig Johnson, Central Washington University; Beth Rogers, Yakima Valley Community College; OraLynn Manweller, Smiths Aerospace Corporation

Tagged Divisions

Materials

was a search for a significant engineering concept related to solidification.The search started with defining and quantifying the process. If the process is done in a fluid (airor water), then convection is prominent and can be described in the equation below: q=Q/t=A*h*∆Twhere: q is the heat flow rate (amount of heat per time) Q is the amount of heat t is time A is the area of contact between the two objects (cast material and cast mold) h is the ‘film coefficient’ (related to the interface of cast and mold) and T is the Temperature (∆T is the change in temperature)Once the cast material (soap) and molds were chosen, the film coefficient and area is set. Theavailable heat is also set by the melt

Conference Session

Introductory Materials Science for the 21st Century

Collection

2007 Annual Conference & Exposition

Authors

Kathleen Kitto, Western Washington University

Tagged Divisions

Materials

value of E or tensile strength that determines the best materialfor a weight constrained application (aircraft or bicycles, for example). The “singing rod” is amemorable and amusing demonstration to introduce the concept and initial assessment datashows a more memorable way for them to still understand by the end of the term. This activity iseasily accessible and transferable to other institutions. In fact, we have found studentsperforming this demonstration to other students on campus after the in-class demo.You can purchase “singing rods” in science supply stores. However, all you really need are solidor hollow rods made from particular materials. Physicists most often use an aluminum rodbecause they have a high Quality Factor (Q), which

Conference Session

Teaching Methods for the 21st Century: Part 1

Collection

2007 Annual Conference & Exposition

Authors

Richard Savage, California Polytechnic State University; Linda Vanasupa, California Polytechnic State University; Jonathan Stolk, Franklin W. Olin College of Engineering

Tagged Divisions

Materials

tailored to the needs of the projectand may include open-time for team discussion and problem solving, learning activities, mini-lectures with Q&A sessions, computational analysis of data as well as fabrication and assemblyof parts. There is no rigid schedule and the students work in teams composed of 4-6 students.Design Methodology for PBL ActivitiesSeven faculty spent two weeks during the summer of 2006 to develop the PBL design activitiesfor our Junior Experience. We followed a collaborative process for systematically designing eachproject-based series of activities as outlined below:Step 1: We began by identifying a profile of our customer’s needs and values. First we listed thevalues that our students have expressed over the years