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solid mechanics

My first entry

Hello,

My name is Pawel and I am a Junior in Harvard College, studying Mechanical and Materials Science and Engineering.

The only course in solid mechanics I've taken so far is the Harvard's undergraduate intro course ES 120 - I guess it's similar to intro courses offered at other universities. Bits and pieces of solid mechanics also appeared in some other courses, but mostly in a very basic form.

Kejie Zhao's picture

Kejie Zhao

Hi everyone, very glad to see you here. My name is Kejie Zhao, a first year phd student working in Prof.Zhigang Suo's group (www.seas.harvard.edu/suo). My concentration is solid mechanics with the same name of this course, it also signifies its importance to my future research. I graduate from Xi'an Jiaotong University in China before coming to Harvard. There I obtained my bachelor and master degree in Engineering Mechanics and Solid Mechanics respectively.

Sung Hoon Kang's picture

ES 240 Homework 6

Hello.

My name is Sung Hoon Kang and I am a second year graduate student of Applied Physics. I did my undergraduate study in Materials Sciene and Engineering at Seoul National University, Korea.

Carl T. Herakovich's picture

Berger on Video Solutions for Teaching Mechanics

Professor Ed Berger, Univeristy of Virginia Mechanical Engineering, is featured in the Chronicle of Higher Education for his use of web technologies and, in particular, "video solutions" for teaching undergraduate mechanics courses. See http://chronicle.com/weekly/v54/i34/era01301.htm.  Or contact Berger at berger@virginia.edu.  Ed hasn't used this approach for all undergraduate mechanics courses as yet, but the potential is there. 

PhD Position: Solid Mechanics/Biomechanics at KTH-Stockholm

PhD Position: Solid Mechanics/Biomechanics at KTH-Stockholm

A four to five-year PhD position focusing on the analysis of multi-scale phenomena in diseased blood vessels including atherosclerotic plaques has recently been opened at KTH Solid Mechanics. The position is fully supported by the Swedish Research Council.

Dean Eastbury's picture

Michael Ortiz wins inaugural Rodney Hill Prize in Solid Mechanics

I am delighted to announce on behalf of Elsevier that Professor Michael Ortiz of CalTech has won the very first Rodney Hill Prize in Solid mechanics in reconition of his body of research during the decade 1998-2007. The prize will be presented at ICTAM in Adelaide on 27 August by Y.S. Chi, Vice Chairman of Elsevier immediately prior to Michael's Hill Prize lecture. For more details please see http://www.elsevier.com/wps/find/P10.cws_home/hillprizewinner

Dean Eastbury

Publisher

Dean Eastbury's picture

Issue 2 of J. Mechanical Behavior of Biomedical Materials published

I am pleased to announce that Volume 1, Number 2 of the the recently-launched Journal of the Mechanical Behavior of Biomedical Materials (www.elsevier.com/locate/jmbbm) has been published by Elsevier. All JMBBM articles can be accessed free-of-charge on ScienceDirect until September 2008 (http://www.sciencedirect.com/science/journal/17516161).

ES 240 Final Project

Here is the powerpoint of the final project, presented by Stevie Steiner and myself.

Fall 2007 ES 240 Final Project "Viscous Deformation of a Fused Quartz Tube" by Sunny Wicks and Stephen Steiner

Attached is a PDF version of the PowerPoint presentation from our final project, titled "Viscous Deformation of a Quartz Tube Caused by Furnace Malfunction:  Analysis and Modeling".

Ji Wang's picture

Professor Y. C. Fung is the recipient of the Fritz J. and Dolores H. Russ Prize of 2007

Professor Y. C. Fung, Professor Emeritus of Bioengineering at UC San Diego's Jacobs School of Engineering, is the recipient of the Fritz J. and Dolores H. Russ Prize of 2007.

Nanshu Lu's picture

ES 240 (Fall 2007) Homework 37-40

This is the last problem set this semester. It is due on Friday, Dec. 14, 2007.

Andrew Seagraves's picture

ES 240, Problem 29, Project Description

Lei and I will be working on developing the appropriate relations and numerical methods for topological optimization of  2D ideal structures.  In this constraint-based optimization study we will try to determine the density distribution which minimizes the strain energy for a fixed volume of material.  This problem is a subset of the so-called "G-closure" problem in topological optimization where we have restricted our possible configurations to certain ideal geometries.   

ES 240 Problem 29, project description

Andrew and I decided to work on some design topics.

Given a reference domain, some boundary conditions and a limited amount of material, which can not fill the whole domain, we want to determine the material distribution inside the domain so that the structure generated will contain the minimum elastic energy. This is called minimum compliance problem, a topic in the field of topology optimization.

Problem 29: Project

Nathan Thielen and I will be investigating straight beams, bent beams and how the analysis can be applied to hooks. We did not have much time to investigate beams in ES240 this term so we hope to gain a broader understanding of this area and share our findings with the rest of the class. The primary goal is to compare the analysis necessary for straight beams versus the analysis needed for bent beams. We choose the project because we also will have ample opportunity to investigate bent beams and hooks using FEM.

Final Project - Bent Beams

Christian and I thought comparing the theory of bent beams to that of straight beams would be interesting because we only explored straight beams this semester in class. Bent beams are important since they are encountered regularly in practice, for example a hook. The geometry of a bent beam changes the equations governing the behavior. So, understanding how the geometry changes the beams behavior is our primary interest.

Project Proposal

My project will be a literature study on ferroelasticity and how it applied to how of the topics we covered in class.

 

Eric Kiser 

Sun Min Jung's picture

ES 240 Project Proposal - Jane Yoon, Sun Min Jung

Stress/Strain Analysis of Bullet-Holeson the Boeing 737 Fuselage Boeing 737 is the most popular aircraft in the sky today, with each one taking off or landing on average of every 6 seconds.

When Quartz Tubes Start to Melt, or, Why the CVD Furnace Was Down for Four Weeks: Problem 29


Overview.
  This post is a description of the project Sunny Wicks and I will be pursuing for this class, to satisfy the requirements for Problem 29.

ES 240 Problem Set #8, Problem #20 - Green's function of biharmonic operator is not positive definite

Professor Vlassak mentioned that last year every single person did a finite element project.  He said he wanted to see more theory projects, so I decided to take him up on that.

I was browsing around one day and happened upon an article that explained that while the Green's function of the laplacian was positive definite, the biharmonic operator's Green's function is not.  Physically, this has significance. 

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