It is my pleasure to share a new article titled "An Experimentally Informed Continuum Grain Boundary Model" by Syed Ansari (my Ph.D. student at IIT Bombay). This work was performed in collaboration with Prof. Amit Acharya.
An immediate Ph.D. position is available in the Control, Automation, and Mechatronics (CAM) lab at Kent State University, Kent, OH. The program is housed within the College of Aeronautics and Engineering and focuses on Mechatronics Engineering. Ideal candidates will need to have completed their master’s degree in electrical, mechanical, or mechatronics engineering by the end of 202. They must possess a strong foundation in controls and machine learning, along with proficient programming skills in Python and MATLAB.
Dear colleagues,
We invite you to read our article, which informs one about the extent to which resonances can be tuned in metamaterials. More precisely, our work provides tight bounds correlating the Quality-factor with peak absorption in dielectric metamaterials. The article is published in Applied Physics Letters and can be found here: https://doi.org/10.1063/5.0155092
Following the previous Blog entry on 3D fracture and out-of-plane crack structures: the essential role of material disorder, we add here a related manuscript (see also attached PDF):
EML Webinar (Young Researchers Forum) on 18 April 2024 will be given by Tongqing Lu at Xi'an Jiaotong University
Title: High throughput rupture experiments of soft materials
Discussion leader: Zhigang Suo, Harvard University
Time: 10:00 am Boston, 3:00 pm London, 4:00 pm Paris, 10:00 pm Beijing on Thursday, 18 April 2024
In classical experiments, it has been found that a rigid cylinder can roll both on and under an inclined rubber plane with a friction force that depends on a power law of velocity, independent of the sign of the normal force. Further, contact area increases significantly with velocity with a related power law. We try to model qualitatively these experiments with a numerical boundary element solution with a standard linear solid and we find for sufficiently large Maugis–Tabor parameter � qualitative agreement with experiments.
In this pair of preprints (see also attached PDFs):
Quenched disorder and instability control dynamic fracture in three dimensions
The composite tape-spring hinge (CTSH) is a lightweight structural connector widely employed in space structures, including spacecraft and satellites, due to its high specific strength and stiffness. Introducing cutouts enables CTSH to possess folding and deployment capability, while optimizing the cutouts finely to optimize the performance of CTSH. However, the interaction between cutout size and the dynamic deployment of CTSH is a novel topic.
The ABD matrix is a fundamental method to characterize the overall stiffness behavior of laminated composite structures. Although classical laminate theory has been widely used, it has limitations in predicting the ABD matrix for woven composites. To address this issue, this paper presents a mesoscale homogenization approach aimed at computing the ABD matrix for thin woven composites accurately. The mesoscale representative volume element (RVE) of the woven composite is generated using TexGen and imposed with periodic boundary conditions to enforce the Kirchhoff thin plate assumption.
