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Thermal wrinkling of liquid crystal polymer shell/core spheres

Submitted by Fan Xu on
research
pattern formation
phase diagram

Smart soft materials that can flexibly respond to external multi-physics stimuli, have shown intriguing applications in shape-morphing and morphology control. Here, we present tunable wrinkling patterns in core-shell spheres under thermal load via controlling the orientation of director in nematic liquid crystal polymer (LCP). To analyze nonlinear instability and morphological evolution of LCP shell/core spheres, we develop a shallow core-shell model that accounts for director-induced anisotropic spontaneous strains.

3D Printed Silicone Polymer : Thermo-viscoelastic experimental characterization and computational modelling

Submitted by mokarram76 on
research
metamaterials; additve manufacturing; 3D printing; Multifunctional materials; Cellular composites; Architected materials

A comprehensive thermo-mechanical experimental study and subsequent constitutive modelling will facilitate in designing and simulating more complex cellular metamaterials using 3D printed silicones

USACM Virtual Seminar by Pania Newell, University of Utah

Submitted by John E. Dolbow on
research
seminar
fracture
computational mechanics

The USACM is happy to announce a virtual seminar this week on Wednesday, July 1st at 3pm Eastern.  The title of the seminar is "Examining Fracture Behavior in Heterogeneous Poro-Elastic Media from Nano to Macro-Scale".  An abstract of the talk is available here:

https://unsacm.memberclicks.net/assets/docs/Newell_2020.07.01_2pm.pdf

We have a number of seats available to anyone interested.  We just ask attendees to register at this page:

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Submitted by Bin Wang on
research

Layered nanocomposites by shear-flow-induced alignment of nanosheets, Chuangqi Zhao, Lei Jiang, Mingjie Liu, Nature, 2020 

 

Novelty/impact/significance:

A generalizable and scalable, continuous fabrication of ultrastrong composite films (with nanosheets of graphene oxide and clay, strength 1215 MPa modulus 198.8 GPa,, and ultrastrong and ultratough composites (with nanosheets of clay, toughness 36.7 MJ/m2 strength 1195 MPa) based on a superspreading layering strategy.

  

Scientific question:

Variable kinematics continuum finite element

Submitted by Mayank Patni on
research
Variable fidelity finite element; Unified Formulation; 3D stress fields; Laminated composites;

Willing to share the work done in my Ph.D. thesis ("An efficient numerical framework for capturing localised 3D stress fields in laminated composites). The basic code (written in FORTRAN 90) is available on GITHUB (Check the following link). 

https://github.com/mayankpatni/TaylorExpansionsBasedUF.git

EML Webinar by Prof. Chiara Daraio on July 1, 2020: The Mechanics of Robotic Matter

Submitted by Teng Li on
research
EML Webinar

EML Webinar on July 1, 2020 will be given by Prof. Chiara Daraio at Caltech via Zoom meeting. Discussion leader: Teng Li, University of Maryland.

Title: The mechanics of Robotic Matter

Time: 7 am California, 10 am Boston, 3 pm London, 10 pm Beijing on July 1, 2020

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

Foundational Research in Robotics (Robotics) Program: CAREER Office Hours

Submitted by Siddiq Qidwai on
research
robotics
funding opportunity
mechanics
National Science Foundation

NOTE: This announcement is relevant to US academic researchers only.

NSF will host a series of virtual office hours for researchers considering submitting a CAREER proposal to the new Foundational Research in Robotics (Robotics) program this summer. Come prepared to ask questions to the Robotics program directors or just join to hear what others want to know. 

Topic: Robotics Program: CAREER Office Hours

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