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Postdoctoral fellowship in computational fracture mechanics at Duke University

I have an opening for a two-year postdoctoral fellowship at Duke University.  The project is a collaboration with experimentalists. and concerns problems in which fractures are driven by fluid flow through porous media.

The ideal candidate will have some background in finite element methods and mechanics, nonlinear coupled field problems, C++, and high-performance computing.  Experience with fracture mechanics is useful but not required.  

The fellowship can begin as soon as this September, 2019, with some flexibility on the start date.  

Emilio Martínez Pañeda's picture

Gradient-enhanced statistical analysis of cleavage fracture

I hope some of you will find this work interesting. We present a new Weibull framework for cleavage fracture that incorporates strain gradient plasticity and can estimate the three parameters of Weibull-type models without any prior assumptions. A post-print is available at www.empaneda.com

Gradient-enhanced statistical analysis of cleavage fracture

Emilio Martínez-Pañeda, Sandra Fuentes-Alonso, CovadongaBetegón

European Journal of Mechanics - A/Solids 77, 103785 (2019)

 

Matt Pharr's picture

'Sideways' and stable crack propagation in a silicone elastomer

We have discovered a peculiar form of fracture that occurs in a highly stretchable silicone elastomer (Smooth-On Ecoflex 00–30). Under certain conditions, cracks propagate in a direction perpendicular to the initial pre-cut and in the direction of the applied load. In other words, the crack deviates from the standard trajectory and instead propagates perpendicular to that trajectory. The crack arrests stably, and thus the material ahead of the crack front continues to sustain load, thereby enabling enormous stretchabilities. We call this phenomenon 'sideways' and stable cracking.

kscolor's picture

Postdoc Position in Computational Fracture Mechanics

A post-doctoral position is immediately available in a research group by Prof. Kyoungsoo Park at the School of Civil & Environmental Engineering, Yonsei University, Seoul, Korea. The successful applicant should have strong research background on computational fracture mechanics associated with cohesive zone modeling, contact mechanics, microstructure computation, hygro-thermo-mechanical analysis, parallel computing or related research area. Specific research direction can be discussed. If interested, please contact Dr.

Emilio Martínez Pañeda's picture

The role of plastic strain gradients in the crack growth resistance of metals [code included]

I hope some of you will find our recent paper in the Journal of the Mechanics and Physics of Solids interesting. The Abaqus user element (UEL) subroutine developed to implement strain gradient plasticity theories with energetic and dissipative higher order stresses (Gudmundson 2004, Fleck and Willis 2009) can be downloaded from www.empaneda.com/codes

The role of plastic strain gradients in the crack growth resistance of metals

Emilio Martínez-Pañeda, Vikram S. Deshpande, Christian F. Niordson, Norman A. Fleck

L. Roy Xu's picture

2019 ASME Congress invitation-Dynamic failure of materials and structures

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interfacial crack initiated from a polymer notch (click here to view this YouTube video from our experiment),     read more below to submit your abstracts

Prof. Jun Xu, Dr. Scott Grutzik, and I organize one topic on “Dynamic failure of materials and structures” for 2019 ASME Congress. We invite you, your colleagues and group members to submit short abstracts before ASME’s deadline of Feb 25, 2019. More details below: 

Emilio Martínez Pañeda's picture

Steady-state fracture toughness of elastic-plastic solids: Isotropic versus kinematic hardening

I hope some of you may find this work interesting. We show that kinematic hardening effects play a significant role in monotonic/static fracture.

Steady-state fracture toughness of elastic-plastic solids: Isotropic versus kinematic hardening

K.J.Juul, E.Martínez-Pañeda, K.L.Nielsen, C.F.Niordson

Engineering Fracture Mechanics, 207, pp. 254-268 (2019)

Volume 207, 15 February 2019, Pages 254-268

yann.charles's picture

1 years PostDoctoral Position - Universities Paris 13 & Paris 7 , Paris, France

A 1 year post Doctoral position is avalaible in France, on computational fractur mechanics. This is a join project between Univ. Paris 13 (LSPM lab), and Paris 7 (ITODYS lab).

The present postdoc subject is focused on the modeling cracking and buckling in thin films and nanostructures on stretchable substrate.

Shuman_Xia's picture

Abstract Deadline Extended: SEM Fracture and Fatigue Call for Papers

Dear Colleagues,

 

The SEM 2019 annual conference abstract deadline has been extended to October 24, 2018. Please see the Call for Abstracts below and consider submitting an abstract.

 

jsegurado's picture

PhD position in Multiscale mechanical modeling of metals , IMDEA-Materials Institute

IMDEA Materials Institute is non-profit research organization located in Madrid, Spain, to carry out research activities in Materials Science and Engineering. More information can be found 

Emilio Martínez Pañeda's picture

Crack Growth Resistance in Metallic Alloys: The Role of Isotropic Versus Kinematic Hardening

We have always modelled crack propagation under monotonic/static loading in metals assuming isotropic hardening. However, we show that anisotropic/kinematic hardening effects play a significant role due to non-proportional straining with crack advance; the isotropic hardening idealization leads to steady state fracture toughness predictions that could be 50% lower. I hope that some of you find this work interesting.

Emilio Martínez-Pañeda, Norman A. Fleck. Crack Growth Resistance in Metallic Alloys: The Role of Isotropic Versus Kinematic Hardening. 

jingguo2011's picture

Reminder: 2018 Midwest Mechanics Workshop registration

Dear Colleagues,

This is a gentle reminder that the 2018 Midwest Mechanics Workshop will take place at IIT, Chicago on Thursday, August 9.  The deadline for registration is July 26, so we will have time to figure out the logistics. Note that registration is free for this one-day workshop. Please see:

https://sites.google.com/iit.edu/midmechmat-2018/home

Post-doc position in Brisbane, Australia

We are working on a modelling problem in fracture mechanics in porous materials, and have advertised a post-doc position for someone with a computational mechanics background. We tend to work with our own FEM codes.

The job link (closing 17th of July)

http://jobs.uq.edu.au/caw/en/job/504555/postdoctoral-research-fellow

 

 

Arttu Polojärvi's picture

PhD position in computational mechanics

We in Aalto University School of Engineering are looking for a doctoral student to work on numerical modelling of fragmentation of quasi-brittle materials. In more detail, you will study breakage and fragmentation of ice blocks. These phenomena occur under compressive loads in ice block to ice block contacts. The fragmentation process is complicated, and requires novel numerical modelling techniques. Modelling may need to be done on different scales, which may have to reach from very high resolution modeling to simplified contact models on larger scale.

Ruobing Bai's picture

Fatigue Fracture of Self-Recovery Hydrogels

Dear Colleagues,

Here is our recent paper “Fatigue Fracture of Self-Recovery Hydrogels”. To the hydrogel community, this paper distinguishes the fatigue fracture and the self-recovery of a hydrogel. To the mechanics community, we show that, for the first time in hydrogels, the fatigue threshold depends only on the covalent network, but not on the noncovalent interactions that provide dissipation.

CAD-Analysis Isogeometric Analysis Post-doc and Software Developer sought to develop a CAD-Analysis simulation prototype Proof of Concept FNR

The http://legato-team.eu in Luxembourg

1) a post-doctoral fellow for 18 months (very competitive salary) to develop accelerated IGAFEM IGABEM and GIFT technology

2) a C++ software developer for 19 months (very competitive salary) to develop a user interface and accelerate the code

The candidates should

1) have some knowledge of IGA, isogeometric analysis or geometry independent field approximation

2) have excellent C++ coding skills

ndaphalapurkar's picture

WCCM 2018, New York City. Symp#1216 Microstructure Regulated Mechanics of Materials Under Extreme Dynamic Environments

Dear Colleague,

A mini-symposium on the Microstructure Regulated Mechanics of Materials Under Extreme Dynamic Environments at the 2018 World Congress on Computational Mechanics (http://www.wccm2018.org/) will take place in stunning heart of New York City, New York from July 22--27, 2018. 

Arttu Polojärvi's picture

PhD position in computational mechanics

We are looking for a doctoral student to work on numerical modelling of fragmentation of quasi-brittle materials. In more detail, you will study breakage and fragmentation of ice blocks. These phenomena occur under compressive loads in ice block to ice block contacts. The fragmentation process is complicated, and requires novel numerical modelling techniques. Modelling may need to be done on different scales, which may have to reach from very high resolution modeling to simplified contact models on larger scale.

Yunwei Mao's picture

USNC/TAM 2018 mini-symposium 362: Failure and Damage in Soft Materials: From Instabilies to Cracking

Dear Colleagues,

We would like to invite you to submit an abstract to our symposium titled “362 Failure and Damage in Soft Materials: From Instabilies to Cracking” as part of the 18th U.S. National Congress for Theoretical and Applied Mechanics (Northwestern University in Chicago, IL, June 4-9, 2018).

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