Blog posts

In this note, we develop simple analytical formulas to estimate the effect of residual stresses on the pulse wave velocity in blood vessels. We combine these formulas with three constitutive models of the arterial wall: the Fung model and two models accounting for the dispersion of collagen fibers via 8 and 16 structure tensors accordingly. The residual stresses come into play with a description of the initial kinematics - the opening angle.

EML Webinar on 11 November 2020 will be given by Sulin Zhang, Penn State University. Discussion leader: Teng Li, University of Maryland

Title: Mechanobiology: A Tale of Stressed Life

Time: 9:30 am Boston, 2:30 pm London, 3:30 pm Paris, 10:30 pm Beijing on 11 November 2020

Zoom Link: https://harvard.zoom.us/j/271079684 

Multiple faculty positions (Full professor, associate professor and assistant professor) in mineral processing are available at Northeastern University in China. Please send your CV to ilovebluesky1981 [at] gmail.com, if you are interested. Thank you.

Two fully-funded postdoctoral positions in computational mechanics of materials and structures are available in the groups of Milan Jirásek (https://mech.fsv.cvut.cz/~milan) and Jan Zeman (https://openmechanics.fsv.cvut.cz/people/jan-zeman). Full description of the openings is available at https://euraxess.ec.europa.eu/jobs/573988, the call closes on 5 December 2020.

Dear friends,

I bring your attention to the following PhD offer within the ITN Newfrac on Computational Fracture Mechanics, please see below and the link https://euraxess.ec.europa.eu/jobs/572885

https://computationalengin.blogspot.com/2020/11/stage-edfminesafh-paris-region-advanced_3.html

Is the Bouligand architecture tougher than regular cross-ply laminates? Adiscrete element method study, Pro and Barthelat, Extreme Mechanics Letters, 2020

Novelty/impact/significance:

With capturing the main mechanisms, it is revealed that the Bouligand structure outperforms the cross-ply (0°/90°) for any crack orientation, while the former is more isotropic in-plane in stiffness and toughness.

Scientific question:

Is the Bouligand architecture tougher than regular cross-plies, given the same fibers and interfaces?

Dear Colleagues, 

We would like to invite you to submit an abstract for the ‘Shock & Blast’ session under Track 1: Dynamic Behavior of Materials. This symposium is part of the 2021 SEM Annual Conference & Exposition on Experimental and Applied Mechanics (Virtual or Albuquerque, NM, USA, June 14-17, 2021).

Dear iMechanicians. I hope that the following paper is of interest to you. We develop the first phase field formulation for fracture (and fatigue) in Shape Memory Alloys. Its potential is demonstrated by solving a variety of paradigmatic 2D and 3D boundary value problems, from R-curves to fatigue cracking of a NiTi biomedical stent.

M. Simoes, E. Martínez-Pañeda. Phase field modelling of fracture and fatigue in Shape Memory Alloys. Computer Methods in Applied Mechanics and Engineering 373 (2021) 113504