Blog posts
EM 388F Term Paper
Assignment: Each student completes a term paper of selected topics that (a) addresses a fracture phenomenon in materials or structures, and (b) involves analyses using fracture mechanics. The project contributes 25% of the final grade, distributed as follows:
About the polycrystal plasticity
Hi everyone,
I am trying to build polycrystal plasticity model by using UMAT subroutine in ABAQUS. As we know, the orientation of grain is always espressed by Euler's angles. What I want to know is how to assign different initial orientations to different grains using Euler's angles in Umat subroutine. Could anybody tell me how to do? Is there any example ?
Many Thanks,
Yuanpei
Grand challenges for engineering in the 21st century, and how they relate to mechanics
After making a list of the great engineering achievements of the 20th century, the National Academy of Engineering, of the United States, has recently described a list of the grand challenges for engineering in the 21st century (of no particular order):
Elastic dielectrics, slides for a short tutorial
Rob Wood teaches a course on micro/nano robotics, and asks me to give a 30-minute tutorial on the theory of dielectric elastomer actuators (DEAs). I attach my slides, which might be useful to you if you'd like to include this topic in your class. The tutorial draws upon work in the literature, as well as recent work in my group:
Graduate Research Supplements (GRS) to Current ENG Awards to Broaden Participation
(This message was sent to iMechanica by Ken Chong, of the National Science Foundation). This letter is to call your attention to an opportunity to broaden participation particularly of underrepresented students in Ph.D. programs in engineering through supplements to current research grants funded by the divisions in the Directorate for Engineering (ENG) at the National Science Foundation.
Void expansion as wave phenomena - might damage evolution be mathematically related to fluid dynamics and turbulence?
The main idea is the following: a most natural mathematical setup for considering the motion of the void-solid interface of an expanding void is that of the traveling wave. Thus, a theory for macroscopic damage evolution may be suspected as being a homogenized version of basic theory that has such wave phenomena as an essential ingredient. This paper is a first step in probing such questions.