Blog posts

Nicolas Triantafyllidis will receive the 2010 Warner T. Koiter Medal

Submitted by Zhigang Suo on Sun, 05/02/2010 - 10:57

Professor Nicolas Triantafyllidis, of Ecole Polytechnique and the University of Michigan, is selected to receive the 2010 Warner T. Koiter Medal.

Rohan Abeyaratne will receive the 2010 Daniel C Drucker Medal

Submitted by Zhigang Suo on Sat, 05/01/2010 - 14:41

mechanician

Professor Rohan Abeyaratne, of Massachusetts Institute of Technology, is selected to receive the 2010 Daniel C. Drucker Medal.

The shape of the Eiffel Tower

Submitted by Mike Ciavarella on Fri, 04/30/2010 - 23:27

I've got interested, since I am going with about 10 of my students to Paris for the Euromech conference I am coorganizing in July, by the design of the Eiffel Tower. Eiffel was a great engineer, and indeed his shape of the tower apparently comes from his ingenious idea of balancing weigth and wind pressure so that there is little need of foundations. WIKIPEDIA has an account of this design idea, and the resulting integro-differential equation.

Acurate Size Measurements of Nano Particles and Nano Pores Make Mechanical Understanding Easy

Submitted by Dehua Yang on Fri, 04/30/2010 - 22:40

Encouraged by its current and prospective customers, Ebatco’s Nano Analysis and Testing Laboratory (NAT Lab) has expanded its nano/micro scale analytical and measurement capabilities significantly. More than ever before, customers can gain insights and comprehension of what is going on and why it has happened at the nano/micro scale.

ABAQUS (6.8, 6.9 EF) - Effect of the number of back stresses

Submitted by ron.dana on Fri, 04/30/2010 - 21:36

number of back stresses

ultra low cycle fatigue

Ziegler

Armstrong-Frederick

Lemaitre

Since ABAQUS 6.8, a new feature has been added to the combined hardening material input.

Let's assume a combined Kinematic and Isotropic hardening case, such as those happen in metals.

"Half cycle" uni-axial test results has been utilized to model the yield stress-plastic strain behavior as well as the Kinematic behavior of the metals.

In the same user interface, there is an option to choose the number of back stresses.

Is the number of 1 back stress is equivalen to the case of linear kinematic hardening (Ziegler's)?

Theory of dielectric elastomers capable of giant deformation of actuation

Submitted by Xuanhe Zhao on Fri, 04/30/2010 - 17:40

research

suo group research

large deformation

electromechanical instability

dielectric elastomer

electrical breakdown

Theory of dielectric elastomers capable of giant deformation of actuation

Xuanhe Zhao, Zhigang Suo

Physical Review Letters, 104, 178302 (2010)

Opening for a Post-Doc position: Adaptive anisotropic mesh for automated geometric reconstruction

Submitted by elie.hachem on Fri, 04/30/2010 - 15:19

job

A postdoctoral researcher is required to work on adaptive
anisotropic mesh refinement algorithms for the CEMEF, Center for Material
Forming at MINES ParisTech in Sophia Antipolis, French Riviera, France.

About experimentl methods for observing the anisotropic plastic behavior of FCC alloy

Submitted by Peichen1573 on Fri, 04/30/2010 - 14:30

anisotropic plasticity

I'm doing a research on anisotropic yield criteria for a FCC alloy and I have to do biaxial tensile experiments to get the yield locus in the biaxial stress space.I have two kinds of samples:

1. metal sheet with dimensions of 150mm x 70mm x 15mm(thickness);

2. rod with diameter of 20mm and length of 150mm.