This is the last homework set for ES 242r / ENGM 940

The whole class will meet on 15 May 2007, Tuesday.

• 9:30am - 1:00pm, Maxwell Dworkin Room 135
• 1:00pm - 4:00pm, 60 Oxford Room 311
• Pizza will be served for lunch

The final exam will take the form of a group discussion. We have 5 students taking the class for credit. We also have 5 topics:

A very breif introduction to aspects of dynamic fracture mechanics.

• Free energy and generalized coordinate. Equilibrium and stability
• Control parameter
• Configurational transitions of two types
• Critical point of configurational transition of the second type. Bifurcation analysis
  
  

An overview of several approaches to computational fracture mechanics for ductile structural metals.

In this lecture I'll describe a recent PhD Thesis by Zhen Zhang.

• What types of PDEs can be solved using complex variable methods
• Anti-plane shear
• Elements of a function of a complex variable (contour integral, analytic continuation, conformal mapping)
  
  

• Slides are attached.
• Reading material: Section 4 of Z. Suo, " Reliability of interconnect structures." pp. 265-324 in Volume 8: Interfacial and Nanoscale Failure (W.
  
  

This set is related to buckle-driven delamination, crack bridging, and interfacial cracks.

Matrix cracking in composites and the competition between penetration and deflection when a crack approaches an interface, and the competition between advance in the interface and kinking out of the interface for an interface crack.

Hi, I'm a Physics grad student working with Dr. Ellen Williams. My job is basically making nanoelectronic devices, measuring their characteristics and trying to understand the underlying "Physics".

What I want to gain from this course is to come to know how flexible macroelectronics are approached and researched. An increasing trend of "thin" applications poses new challenges in terms of low power usage and durability.

My name is Daniel Min.  I am a senior mechanical engineering student at the University of Maryland.  I am currently enrolled in Dr. Teng Li's flexible macroelectronics course.  I chose to enrol

G. Bao and Z. Suo, " Remarks on crack-bridging concepts," Applied Mechanics Review. 45, 355-366 (1992).

My name is Kurt Vargas. I am an international student from Costa Rica, currently attending the University of Maryland at College Park. I am a Christian who loves the Lord and serves Him full time. I also love reading my Bible!

I am a Mechanical Engineering senior at the University of Maryland – College Park. I was born in Russia, and moved with my parent to US when I was 13. For the most part of my life I enjoyed taking things apart and understanding how they work – it was probably inevitable that I become an engineer.

My name is Adam Rutherford and I am currently a senior mechanical engineering student at the University of Maryland. I am enrolled in Dr. Teng Li's class on flexible macroelectronics. I chose this course out of the selection of electives because I feel that flexible macroelectronics will have a large impact on the consumer electronics industry in the near future.

My name is Navid Charooseh and I am a senior undergraduate student at the University of Maryland. I currently work for Dr. Yu in the Sensors and Actuators Laboratory. My interests include biomechanics, bio-inspired engineering, and devices (sensors, etc) to be used in biological applications.

I am a PhD student at the CALCE Research Center. My research is on the reliability of stamped metal land grid array sockets for microprocessor applications. I worked with a Scanning Acoustic Microscope (SAM) manufacturer, as an applications engineer before I joined CALCE.

My name is Josh Crone and I am an undergraduate student in Mechanical Engineering at the University of Maryland. I am in the BS/MS program with a focus in mechanics and materials. My current research interests are in atomic force microscopy.

My name is Nathan and I am a Masters student in my second year at the University of Maryland, College Park studying mechanical engineering.  I was born and raised in Erie, PA.  For my undergraduate studies, I attended the University of Pittsburgh in Pittsburgh, PA where I also studied mechanical engineering.  When I am not engineering, I enjoy running, playing the piano, and following the stock market. 

My name is Dan Forrest and I am currently a biological resources engineering student at the University of Maryland. I am taking ENME489X: Flexible Macroelectronics to fulfill a degree requirement. However, I chose this specific class because the topic in general seemed interesting to me and appears to be an up and coming field in the electronics industry.

My name is Anand Pillarisetti. I am a graduate research assistant at University of Maryland, working towards my doctoral degree in mechanical engineering. I received Master of Science (MS) degree in mechanical engineering and mechanics from Drexel University, Philadelphia, PA and Bachelor of Technology (B-Tech) degree in mechanical engineering from National Institute of Technology (NIT), Warangal, India.  I am currently enrolled in the course "Flexible Macroelectronics" taught by Dr. Teng Li at University of Maryland.

My name is Hongbo Bi and I am a Ph.D candidate in Mechanical Engineering under Dr. Bongtae Han at the University of Maryland, College Park. I recieved Master of Science (M.S.) degree in Mechanical Engineering from University of Maryland, College Park and and Bachelor of Engineering (B.E.) in Automatic Control from University of Science and Technology of China. I am currently entrolled into class of Flexible Macroelectronics (ENME808H) at the University of Maryland, which is taught by Prof. Teng Li.

My name is Christi Ryon. I am a senior undergraduate mechanical engineering student at the University of Maryland, College Park. I am taking a course in flexible macroelectronics for two reasons. First, this course fulfils a major requirement. The second reason is that the subject of flexible macroelectronics is a new emerging technology that I was not familiar with but is a topic that I wished to learn more about.