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PhD position at the Institute of Mechanics, OVGU Magdeburg, Germany

Submitted by djuhre on

We have an opening PhD Position at our Institute of Mechanics, Otto von Guericke University Magdeburg (Germany).
The candidate should work in the field of "coupling of fictious domain methods and the boundary element method for the analysis of acoustic metamaterials".
Attached you will find the corresponding job advertisement.
Futher questions will be answered by my postdoc Dr. Fabian Duvigneau (fabian.duvigneau [at] ovgu.de).

Critical porosity in the fatigue of additively manufactured IN718 via crystal plasticity modeling

Submitted by rajan_prithivi on

https://doi.org/10.1016/j.matdes.2018.04.022

Highlights

1. Critical porosity is estimated in additively manufactured IN718 via crystal plasticity.

2. Porosity is characterized using high resolution tomography.

3. Non-local damage indicator parameters identify the location of fatigue crack initiation.

4. The critical pore size is 20 μm in IN718 with average grain size of 48 μm.

Hydrogel 3D printing with the capacitor edge effect

Submitted by tongqing.lu on

Recent decades have seen intense developments of hydrogel applications for cell cultures, tissue engineering, soft robotics, and ionic devices. Advanced fabrication techniques for hydrogel structures are being developed to meet user-specified requirements. Existing hydrogel 3D printing techniques place substantial constraints on the physical and chemical properties of hydrogel precursors as well as the printed hydrogel structures. This study proposes a novel method for patterning liquids with a resolution of 100 μm by using the capacitor edge effect.

Seeking Postdoctoral scholar for a join NIST-JHU project on dynamic response of soft materials

Submitted by vicky.nguyen on

The Mechanical Engineering Department at Johns Hopkins University is seeking a postdoctoral fellow to work on a project with the Security Technologies Group in the Material Measurement Laboratory at the National Institute of Standards and Technology (NIST) in Gaithersburg, MD.

 

Numerical convergence of finite difference approximations for state based peridynamic fracture models

Submitted by Prashant K. Jha on

Prashant K. Jha and Robert Lipton

Computer Methods in Applied Mechanics and Engineering, 2019. 

https://doi.org/10.1016/j.cma.2019.03.024

 

Highlights

1. Well-posedness of a general nonlinear state based peridynamic models.

2. A priori numerical convergence rate for finite difference approximations of state based peridynamic models.

3. Numerical verification of convergence rate for samples with growing cracks.

UIUC-NUS joint Postdocs on Computational modeling of additive manufacturing

Submitted by Wentao Yan on

Two postdoc positions in computational modeling of metallic additive manufacturing are available immediately in the research groups of Prof. Jinhui Yan at University of Illinois at Urbana-Champaign (UIUC) and Prof. Wentao Yan at National University of Singapore (NUS). Successful candidates need to be self-motivated and have a solid background in mathematics, mechanics, numerical analysis, and programming (Fortran, C/C++, and Python).

Blog: Transforming MRI and CT scans into 3D Models

Submitted by Simpleware on

Being able to create accurate medical devices that are closely matched to a patient’s unique anatomy requires precision imaging, measurements, and design. A critical part of PrinterPrezz’s unique medifacturing™ workflow is our process of turning magnetic resonance imaging (MRI) and computed tomography (CT) scans into a 3D CAD image that can be manipulated and used for 3D printing.

Mode I crack tip fields: strain gradient plasticity theory versus J2 flow theory

Submitted by Emilio Martíne… on

I hope some of you may find this work interesting. We show, analytically and numerically, that strain gradient plasticity predicts the existence of an inner elastic field adjacent to the crack tip, reminiscent of a dislocation-free zone. The fact that elastic strains dominate plastic strains near the crack tip implies a paradigm-shift with respect to previous crack tip asymptotic studies in plasticity and gradient plasticity, which neglect elastic strains. 

 

Emilio Martínez-Pañeda, Norman A. Fleck

R&D Team Manager, Metallurgy @ Novelis Inc.

Submitted by vh on

This position is strictly for experienced candidates and is located at our Global R&T Centre in Kennesaw GA. Please get in touch with me if this role matches your experience. Job Description 

ISAM4 2019 - 4th International Symposium on Atomistic and Multiscale Modeling of Mechanics and Multiphysics

Submitted by Erik Bitzek on

Following the success of three former meetings (Tokyo 2011, Tokyo 2013, Brno 2016), the fourth ISAM4 meeting will be held at FAU Erlangen-Nürnberg, Germany from August 5th to 8th 2019. 

This symposium is intended as an international forum for the presentation and discussion of the latest scientific developments regarding the atomistic and multiscale modeling of materials. We aim at bringing together specialists from multiple disciplines to network, exchange and generate new ideas related (but not limited) to