AA 280

Smart Structures

Spring 2015

Instructor:

Location & Times:

Course Description:

Smart materials and structures can monitor their state of health, automatically heal internal fractures and adapt to environmental changes. Making structures smarter leads to engineering systems (e.g. aircraft, automotive and biomedical) that are lightweight, more aerodynamic and have increased operation lifetimes. In this course, current approaches for designing and implementing smart structures in real-world applications will be reviewed. In addition, students will analyze constitutive equations that model the behavior of piezoelectric ceramics, electro-active polymers (artificial muscle) and shape memory alloys. Students from various disciplines of engineering can benefit from this course. This course presumes the student is already familiar with a basic mechanics of materials.

Prerequisite: AA 240A is a highly recommended (but not mandatory) prerequisite.

Grading:

Course Syllabus: Syllabus File

Lecture Schedule

Date Subject Lecture Notes Reading Assignments
03/30 Lecture 1: Introduction to course structure; Definition of smart structures Lecture 1 Text Ch. 1.1 to 1.5 HW #1 Out
04/1 Lecture 2: Learning from nature; Bio-inspired materials and structures Lecture 2 Supplement #1a, Supplement #1b, Supplement #1c, Fun Video #1 HW #1 Due, HW #2 Out
04/06 Lecture 3: Learning from nature, continued; Self-healing materials and structures Lecture 3 Supplement #2  
04/08 Lecture 4: Review of elasticity; Introduction to piezoelectric materials Lecture 4 Text Ch. 2.1, 4.1 & 4.2 HW #2 Due; HW #3 Out
04/13 Lecture 5: Piezoelectric materials, continued Lecture 5 Text Ch. 4.3 & 4.4  
04/15 Lecture 6: Piezoelectric sensors and actuators Lecture 6 Text Ch. 4.6 HW #3 Due; Midterm & Schedule Out
04/20 Lecture 7: Guest lecture on piezoelectricity (Dr. Roberto Dugnani) Lecture 7    
04/22 Lecture 8: Experimental demonstration of piezoelectric sensors (Details to be announced)      
04/27 Lecture 9: Midterm presentations in class      
04/29 Lecture 10: Midterm presentations in class      
05/04 Lecture 11: Intro to Electroactive polymers Lecture 11 Text Ch. 7.1 & 7.2  
05/06 Lecture 12: Electro-active polymers, continued, Introduction to shape memory alloys Lecture 12 Text Ch. 6.1, 6.2 & 6.3, Fun Video HW #4 Out
05/11 Lecture 13: Shape memory alloys, continued; Lecture 13 Text Ch. 6.1, 6.2 & 6.3  
05/13 Lecture 14: Introduction to sensors Lecture 14 Supplement #3a, Supplement #3b HW #4 Due; HW #5 Out
05/18 Lecture 15: Sensors, continued Lecture 15 Supplement #4 Final Out
05/20 Lecture 16: Guest Lecture: Nano-scale Sensors, Dr. Heather Chiamori     HW #5 Due
05/25 Lecture 17: **Memorial Day (holiday, no class)**      
05/27 Lecture 18: Wireless sensor networks and energy harvesting; Review of course materials      
06/01 Lecture 19: In class presentations      
06/03 Lecture 20: In class presentations