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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. 

L. Roy Xu's picture

2018 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 and I organize one topic on “Dynamic failure of materials and structures” for 2018 ASME Congress. We would invite you, your colleagues and group members to submit short abstracts before ASME’s deadline of July 23, 2018. More details below: 

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).

ahmedettaf's picture

USNC-TAM: Minisymposium on Friction, Fracture, and Damage

Dear Colleagues,

We cordially invite you to submit an abstract to MS 335: Friction, Fracture, and Damage; a minisymposium that will take place as part of the upcoming US National Congress on Theoretical and Applied Mechanics (Chicago, IL June 4th -9 th 2018). Abstract Deadline: Nov 10th :http://sites.northwestern.edu/usnctam2018/

Ahmed Elbanna, University of Illinois Urbana Champaign

Krishnaswamy Ravi-Chandar, University of Texas at Austin

Research assistantship at IISc Bangalore

We have an immediate opening for a research assistant in the Mech Engng department at IISc Bangalore. 

Requirements:

  • Strong background in Finite element methods
  • Skill in C++ programming
  • Masters degree with specialization in computational mechanics, applied mathematics or related areas.
  • Open only to Indian citizens.

Interested candidates satisfying ALL the above requirements can write to

rram at mecheng dot iisc dot ernet dot in

Research assistantship at IISc Bangalore

We have an immediate opening for a research assistant in the Mech Engng department at IISc Bangalore. 

Requirements:

  • Strong background in Finite element methods
  • Skill in C++ programming
  • Masters degree with specialization in computational mechanics, applied mathematics or related areas.
  • Open only to Indian citizens.

Interested candidates satisfying all the above requirements can write to

rram at mecheng dot iisc dot ernet dot in

Post-doctoral fellow in Chile's Legato Team

Possibilities for postdoctoral fellowships in Computational Mechanics with Elena Atroshchenko in collaboration within the Legato Team http://legato-team.eu

Please apply here: http://www.conicyt.cl/fondecyt/2016/09/06/concurso-postdoctorado-2018/

If you need information, please contact Elena Atroshchenko <eatroshchenko@ing.uchile.cl>

Arttu Polojärvi's picture

PhD position in computational solid mechanics

Aalto University (Finland), Department of Mechanical Engineering, is looking for a doctoral student for a study on the breakage and fragmentation of ice blocks under compressive loads. The fragmentation process is complicated and requires the use of novel modelling methods that can be used reliably on different scales. In addition to the computational work, we will perform experiments on this topic.

Arttu Polojärvi's picture

Post doc position in computational solid mechanics

We in Aalto Univeristy (Finland), Department of Mechanical Engineering, look for a post doc to join our group for a study on the breakage and fragmentation of ice blocks under compressive loads. The fragmentation process is complicated and requires the use of novel experiments and numerical models, and in this research, you will be working on both. The unique experiments on this topic will be performed in the cold room of the department.  Numerical modelling will be done on a variety of scales.

Fundamentals of Fracture Symposium at DPG-EPS Meeting 2018

Sandra Korte-Kertzel, Peter Gumbsch and I are organizing a Symposium on the Fundamentals of Fracture

at the joint meeting of the German and European Physical Societies (DPG and EPS) in Berlin, March 11-13 2018.

 

exw569's picture

Postdoctoral position in nanomechanics of 2D nanomaterials

The School of Engineering and Materials Science at Queen Mary University of London has a vacancy for a Postdoctoral Research Assistant (PDRA) to develop computational models of ultra-flexible 2D nanomaterials in sheared liquids, using techniques borrowed from computational fluid and solid mechanics.

Sharlotte Kramer's picture

Sandia Fracture Challenge: Survey

The Sandia Fracture Challenge (SFC) was issued in December 2016, and the SFC supplemental information became available in February 2017.  The predictions are due July 15th, 2017.  We would appreciate feedback from you regarding the Challenge prior to the return of the predictions.   Please email Sharlotte Kramer (slkrame@sandia.gov) and Brad Boyce (blboyce@sandia.gov) with (1) your intent to participate in this SFC and/or (2) any comments you may have on the Challenge.

Closed: Research Fellow (PhD) position in ISRO funded project

The Indian Space Research Organization (ISRO) has funded a 2 year project to BITS Pilani (Goa and Hyderabad campuses). The simulation project will model atomistic fracture in amorphous silica, with application to the Thermal Protection System (TPS) of the Reusable Launch Vehicle (RLV).

Details of application are mentioned in the attachment.

Sharlotte Kramer's picture

Sandia Fracture Challenge Update

Supplemental information for the third Sandia Fracture Challenge (SFC) is now available!  We have compiled the supplemental information promised in the original information packet and some additional information based on questions we received from participants.  The supplemental information includes electron backscatter diffraction (EBSD) data on the Challenge geometry, additional base material tests, raw DIC images and examples of DIC analyses of base material tests, and additional boundary condition information.

Sharlotte Kramer's picture

The 3rd Sandia Fracture Challenge is here!

The third Sandia Fracture Challenge is here!  We invite to you participate in this next installment of our collaborative, blind assessment of predictions of ductile fracture.  For the third SFC, we wanted to challenge the computational mechanics community to predict ductile fracture in an additively manufactured structure.

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