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Jingjie Yeo's picture

Adverse effects of Alport syndrome-related Gly missense mutations on collagen type IV: Insights from molecular simulations and experiments

https://doi.org/10.1016/j.biomaterials.2020.119857 Our unified experimental and computational approach provided underlying insights needed to guide potential therapies for Alport syndrome (AS) that ameliorate the adverse effects from AS disease onset and progression. Patients with AS exhibit blood and elevated protein levels in their urine, inflamed kidneys, and many other abnormalities.

Shuozhi Xu's picture

Call for papers: Nanofabrication, Atomic and Close-to-atomic Scale Manufacturing

A Special Issue entitled "Nanofabrication, Atomic and Close-to-atomic Scale Manufacturing" for the journal Nanomanufacturing and Metrology is now open for submission:

The submission deadline is June 15, 2020. For more information, please refer to the attached flier or this webpage:

https://www.springer.com/journal/41871/updates/17701520

User material subroutine for Johnson Cook Model in LS DYNA

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I need to edit user subroutine for existing Johnson Cook model (MAT_015) in LS DYNA. I have downloaded object files. However, I could not find any subroutine file for MAT_015. I need to edit the model and add 2 more parameters to increase its accuracy. Creating it from scratch is really a lengthy task. Can anyone help me in this regard? Thank you. 

Zheng Jia's picture

Highly stretchable bilayer lattice structures that elongate via in-plane deformation

Burebi Yiming, Lei Wu, Mingqi Zhang, Zilong Han, Pei Zhao, Tiefeng Li, Zheng Jia*, Shaoxing Qu, Highly Stretchable Bilayer Lattice Structures that Elongate via in-Plane Deformation, Advanced Functional Materials, 2020, 1909473 (DOI: https://doi.org/10.1002/adfm.201909473)

Teng Cui's picture

Fatigue of Graphene

Materials can suffer mechanical fatigue when subjected to cyclic loading at stress levels much lower than the ultimate tensile strength, and understanding this behaviour is critical to evaluating long-term dynamic reliability. The fatigue life and damage mechanisms of two-dimensional (2D) materials, of interest for mechanical and electronic applications, are currently unknown. Here, we present a fatigue study of freestanding 2D materials, specifically graphene and graphene oxide (GO).

mbessa's picture

Journal Club for February 2020: Machine Learning in Mechanics: simple resources, examples & opportunities

Machine learning (ML) in Mechanics is a fascinating and timely topic. This article follows from a kind invitation to provide some thoughts about the use of ML algorithms to solve mechanics problems by overviewing my past and current research efforts along with students and collaborators in this field. A brief introduction on ML is initially provided for the colleagues not familiar with the topic, followed by a section about the usefulness of ML in Mechanics, and finally I will reflect on the challenges and opportunities in this field.

mohsenzaeem's picture

Fatigue-resistant high-performance elastocaloric materials made by additive manufacturing. Science 366 (6469) (2019) 1116-1121

H. Hou, E. Simsek, T. Ma, N.S. Johnson, S. Qian, C. Cissé, D. Stasak, N. Al Hasan, L. Zhou, Y. Hwang, R. Radermacher, V.I. Levitas, M.J. Kramer, M. Asle Zaeem, A.P. Stebner, R.T. Ott, J. Cui, I. Takeuchi. Fatigue-resistant high-performance elastocaloric materials made by additive manufacturing. Science 366 (6469) (2019) 1116-1121.

Abstract

Antonio Papangelo's picture

Elliptical adhesive contact under biaxial stretching

Adhesive contact of the Hertzian indenter with an incompressible elastic substrate bi-directionally stretched along the indenter principal planes of curvature is considered in the Johnson–Kendall–Roberts theoretical framework. An approximate model is constructed by examining energy release rate conditions only on the edges of the minor and major axes of the contact ellipse. The effect of weak coupling between fracture modes I and II is introduced using a phenomenological mode-mixity function.

Antonio Papangelo's picture

Effect of Wear on the Evolution of Contact Pressure at a Bimaterial Sliding Interface

The eigenfunction method pioneered by Galin (J Appl Math Mech 40: 981–986, 1976) is extended to provide a general solution to the transient evolution of contact pressure and wear of two sliding elastic half-planes, under the assumption that there is full contact and that the Archard–Reye wear law applies. The governing equations are first developed for sinusoidal profiles with exponential growth rates.

Sundaraelangovan selvam's picture

Validation of 3D nonlinear elastic model- INCS method

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I am creating this post to get some inputs/ possible collaboration for validating my 3D nonlinear elastic model.

Cemal Basaran's picture

Unified Mechanics Theory

Recently, I guest-edited a special issue of the journal Entropy on Unified Mechanics Theory and related topics. All published papers are available for free download from the link below.

https://www.mdpi.com/journal/entropy/special_issues/fatigue

 

Emilio Martínez Pañeda's picture

On the suitability of slow strain rate tensile testing for assessing hydrogen embrittlement susceptibility

I hope that some of you will find this work interesting. We show that early cracking occurs in slow strain rate tensile testing (SSRT), which compromises the capabilities of this popular experiment for measuring hydrogen embrittlement susceptibility.

On the suitability of slow strain rate tensile testing for assessing hydrogen embrittlement susceptibility

E. Martínez-Pañeda, Z. D. Harris, S. Fuentes-Alonso, J. R. Scully, J. T. Burns

Corrosion Science 163, 108291 (2020)

Parag Tandaiya's picture

Wallner lines, crack velocity and mechanisms of fracture in a brittle bulk metallic glass

A few years ago, we observed Wallner Lines on the fracture surface of a brittle Bulk Metallic Glass and explained the process of formation of nanocorrugations on the fracture surface.

We published our research in Acta Materialia in the paper: 'Wallner lines, crack velocity and mechanisms of fracture in a brittle bulk metallic glass'.

Parag Tandaiya's picture

On the mechanism and the length scales involved in the ductile fracture of a bulk metallic glass

A few years ago we published a paper in Acta Materialia elucidating the mechanism and length scales in the ductile fracture of bulk metallic glass through experiments and finite element simulations.

The link to the paper is here: 'On the mechanism and the length scales involved in the ductile fracture of a bulk metallic glass'.

I hope you enjoy reading the paper and find it useful in your research.

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