Amit Pandey's blog

http://careers.rolls-royce.com/rest-of-the-world/job-search-results/job-...

A similar discussion on this forum raised many interesting point about- Stress or strain: which one is more fundamental?

http://imechanica.org/node/1001 

On a similar note I would like to address this decade old fundamental question on how do we define yield point of a material?  

ABSTRACT

http://www.journals.elsevier.com/materials-and-design/call-for-papers/ma...

Below are references to some of our ongoing work that is published and is related to study the role of microcracking (in particular) and porosity to the thermo-mechanical response of functional ceramics. This study is  relevant to understand the structural reliability of the systems such as the SOFC's (solid oxide fuel cells) and DPF's (diesel particulate filters).

Recent paper is Part-2 of the paper mentioned below

 http://imechanica.org/node/10104 

http://www.sciencedirect.com/science/article/pii/S0749641910001142 

Mechanical responses and deformation mechanisms of an AZ31 Mg alloy sheet under dynamic and simple shear deformations

Abstract

This recent article present an improved methodology to calculate in-situ Young's moduli of the constitutive layers in a multilayer systems (e.g. thin films, SOFCs, TBCs etc.)

Pandey, A., Shyam, A., Liu, Z., & Goettler, R. (2014). In-situ Young’s Moduli of the Constitutive Layers in a Solid Oxide Fuel Cell. Journal of Power Sources.

http://www.sciencedirect.com/science/article/pii/S0378775314015341 

Highlights

This recent article presents an improved methodology to calculate in-situ Young's moduli of the constitutive layers in a multilayer systems (e.g. thin films, SOFCs, TBCs etc.)

Amit Pandey, Amit Shyam, Zhien Liu, Richard Goettler, In-situ Young's moduli of the constitutive layers in a solid oxide fuel cell, Journal of Power Sources, Volume 273, 1 January 2015, Pages 522-529

http://www.sciencedirect.com/science/article/pii/S0378775314015341 

Highlights

A lot work has been done/published in the area of in-situ mechanical testing using electron microscopy. Please list which, according to what you feel has had a significant impact. Here are two in my opinion:

 Uchic, M. D., Dimiduk, D. M., Florando, J. N., & Nix, W. D. (2004). Sample dimensions influence strength and crystal plasticity. Science, 305(5686), 986-989.

Meeting

2015 TMS Annual Meeting & Exhibition

Symposium

Advances
in Thin Films for Electronics and Photonics

Sponsorship

HIGH
TEMPERATURE SYSTEMS FOR ENERGY CONVERSION AND STORAGE

TMS Division: Functional Material Division (FMD
formerly known as EMPMD)

FMD sub-committee: Energy Conversion and Storage

Organizers:

 Fuel Cell Ceramics Reliability Summer Intern. 

Interested candidates with a background in mechanical, material science. solid mechanics please email your resume to amit.pandey/at/lgfcs/dot/com with the subject title "Fuel Cell
Ceramics Reliability Summer Intern"

--------------------------------------------

http://onlinelibrary.wiley.com/doi/10.1111/jace.12720/abstract

The Uniaxial Tensile Response of Porous and Microcracked Ceramic Materials

Amit Pandey,§,*,†,‡ Amit Shyam,§,* Thomas R. Watkins,§,* Edgar Lara-Curzio,§,** Randy J. Stafford,¶,* and Kevin J. Hemker||

§Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, 37831 Tennessee

‡Reliability Division, Rolls Royce LG Fuel Cell System Inc., North Canton 44720

Experimental and numerical investigations of
yield surface, texture, and deformation mechanisms in AA5754 over low to
high temperatures and strain rates

Abstract

In continuation of our work on yield surfaces

Part- 1 (node/9016)

Part- 2 (node/9073) and

Part- 3 (node/9103)