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rajan_prithivi's picture

How are principal planes & eigen vectors of the stress tensor related ? | An intuitive explanation

To obtain the principal planes we construct the stress tensor and find the eigen vectors. Here is an attempt to explain it more intuitively rather than the use of the formal mathematical method. Hope you enjoy this video!
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This is an educational outreach initiative targeted at all engineers interested in mechanics and seek simpler explanations. Kindly share if you learn something out of this !

Here is the link to the VIDEO

Ph.D. Opportunity at Singapore University of Technology and Design (SUTD) on Functional 3D Printing

Prof. Ge’s Advanced Manufacturing and Design Laboratory (http://amd.sutd.edu.sg/) is recruiting PhD students. The Ph.D.scholarships are immediately available in the general areas of functional advanced manufacturing. The research topics can vary based on the student’s background from solid mechanics for soft active materials, UV curable functional polymer development for 3D printing, and development of high resolution multifunctional 3D Printing system.

rajan_prithivi's picture

What are Principal Stresses (explained without math equations) ?

 

In the following video, I have tried to explain the concept of principal stress in a more physical way and without involving any mathematical equations, hope you can easily imbibe the concept.

Here is the link to the video : Principal stresses

rajan_prithivi's picture

Failure of brittle materials using simple experiments- Part 2

Here is my second video, where I tried to explain the concepts of stress state, principal stresses, Mohr circle and failure theories in layman's language and associated these concepts to explain the failure of a brittle material. This is an educational outreach initiative mainly targeted at the undergraduates (mechanical/civil/aerospace and materials engineering) studying mechanics and also other me

jenda_z's picture

Modeling of Localized Inelastic Deformation 2017 (LID 2017)

Dear colleagues,

on behalf of the course organizer, I would like to bring to your attention to the advanced course on Modeling of localized inelastic deformation that will be taught by Milan Jirásek in Prague, Czech Republic on 18-22 September 2017.

rajan_prithivi's picture

Concept of state of stress in a simple way

I tried to explain the concept of state of stress in a simple way, here is the link to the video - state of stress

rajan_prithivi's picture

Failure of brittle materials using simple experiments -Part 1

Below is the video link to my first lecture video, where in I tried to demonstrate the failure of brittle materials using simple experiments.
https://www.youtube.com/watch?v=yG76IhmKyRY&t=1s

 

More on objective incremental constitutive equations

Check out my new article on a source of confusion in material and spatial versions of constitutive equations at http://www.parresianz.com/mechanics/incremental-objectivity/

-- Biswajit

AS's picture

Final announcement Summer school Mechanics for the green economy

Organizers invite to attend the summer school 

Mechanics for the green economy: Modeling and High Performance Computing in  multi-scale and multi-physics processes.

Brescia and Trento, Italy,  19-25 July 2017.

Deadlines:

Fellowship deadline is Sunday, May 7. Registration deadline July 1, 2017.

Lecturers:

Prof. W. Bangerth, Colorado State University, USA

Summer School on Advanced Material Systems: Experimentation–Modeling–Commercialization, 4-11 July 2017, Thessaloniki, Greece

On behalf of the Center for Research and Development of Advanced Materials established by the Aristotle University of Thessaloniki and Texas A&M University Engineering Experiment Station, we would like to announce a summer school on Advanced Material Systems: Experimentation–Modeling–Commercialization.

Stavros Gaitanaros's picture

Short Course on Mechanics of Foams

A short course on the “Mechanics of Liquid and Solid Foams” will be offered at CISM, the International Centre for Mechanical Sciences in Udine, Italy, 3-7 July 2017 (see brochure attached).

The course will focus on relationships between the cellular microstructure and nonlinear mechanical behavior of liquid and solid foams, and foam-like biological and synthetic materials. Theoretical models, experimental methods, and numerical simulations will be presented. The course is aimed at PhD students, postdocs, and researchers in academia and industry.

The speakers are:

Reading XML files containing gzipped data in C++

Once upon a time, the CEO of my company asked me why I did so much software engineering for my work.  My response was that software engineers were unlikely to produce what I needed in the short time frames that I had at my disposal without me spending a huge amount of time training them.

Creating a multi-keyframe animation with d3.js.

Creating a multi-keyframe animation with d3.js.  http://www.parresianz.com/javascript/d3js/d3-animation-closest-point-return/

Something that should be in the toolbox of every modern researcher.  Static plots in journals are not good enough given today's technology.

-- Biswajit

Summer School on Computational Materials Science at Texas A&M

On behalf of the Center for intelligent Multifunctional Materials and Structures (CiMMS) and the Department of Materials Science & Engineering at Texas A&M University, we would like to announce the coming, sixth iteration of the Texas A&M 

Nonlinear programming and closest point return plasticity

New article:  Nonlinear programming and closest point return plasticity http://www.parresianz.com/mechanics/plasticity/algorithm/primal-dual-closest-point-return/

This article tries to justify the use of backward Euler stress updates.

-- Biswajit

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