US National Committee for Theoretical and Applied Mechanics - 2019 Newsletter
The U.S. National Committee for TAM is pleased to share its Fall 2019 Newsletter, an annual publication that will be issued each fall.
Blog posts
A nonlinear data-driven reduced order model for computational homogenization with physics/pattern-guided sampling
Developing an accurate nonlinear reduced order model from simulation data has been an outstanding research topic for many years. For many physical systems, data collection is very expensive and the optimal data distribution is not known in advance. Thus, maximizing the information gain remains a grand challenge. In a recent paper, Bhattacharjee and Matous (2016) proposed a manifold-based nonlinear reduced order model for multiscale problems in mechanics of materials. Expanding this work here, we develop a novel sampling strategy based on the physics/pattern-guided data distribution.
Universal Displacements in Linear Elasticity
In nonlinear elasticity, universal deformations are the deformations that exist for arbitrary strain-energy density functions and suitable tractions at the boundaries. Here, we discuss the equivalent problem for linear elasticity. We characterize the universal displacements of linear elasticity: those displacement fields that can be maintained by applying boundary tractions in the absence of body forces for any linear elastic solid in a given anisotropy class.
9th International Conference on Mechatronics and Control Engineering (ICMCE 2020)
ICMCE 2020 conference. http://icmce.org
9th International Conference on Mechatronics and Control Engineering (ICMCE 2020) will be held in Rome, Italy on July 22-24, 2020.
Please also see the attached Conference Flyer for detailed information.
Contact Person:
PhD position @ TU Delft: Data-driven design of materials and structures
Advertising the first fully funded PhD position in my group: this position is for the more computationally/mathematically inclined. Goal: method development.
A "general audience" summary of a recent application of our work: https://www.youtube.com/watch?v=cWTWHhMAu7I
Details about the position: https://vacature.beta.tudelft.nl/vacaturesite/permalink/287309/?lang=en
Materials Division events at IMECE and newsletter
Dear Colleagues,
During the ASME-IMECE next week, the Materials Division will host a number of events including plenary lectures, award lectures, and reception. You are cordially invited to these events.
Track 10 Plenary Sessions:
Zhigang Suo – Tuesday, Nov. 12th, 9:45–10:30 am, Room 255F, Convention Center
Irene Beyerlein – Wednesday, Nov. 13th, 9:45–10:30 am, Room 155F, Convention Center
Award Lectures/Reception (Tuesday, November 12):
Dynamic Martensitic Phase Transformation in Single-crystal Silver Microcubes
The ability to transform the crystal structure of metals in the solid-state enables tailoring their physical, mechanical, electrical, thermal, and optical properties in unprecedented ways. We demonstrate a martensitic phase transformation from a face-centered-cubic (fcc) structure to a hexagonal-close-packed (hcp) structure that occurs in nanosecond timescale in initially near-defect-free single-crystal silver (Ag) microcubes impacted at supersonic velocities.
Professor (all ranks) in Manufacturing and Biomanufacturing at the Arizona State University
The Ira A. Fulton Schools of Engineering (FSE) at Arizona State University (ASU) and the School for Engineering of Matter, Transport and Energy are hiring faculty to support a broad initiative in manufacturing and biomanufacturing. In conjunction with that initiative, we seek applicants for tenure-track/tenured faculty positions in the areas of manufacturing of advanced materials (metals, polymers, ceramics, semiconductor, and composites) and biomanufacturing/biofabrication (biomolecules, biomaterials, cells and tissues).
Littlewood's Curious Hoop: Sliding, Gliding, Jumping, and Rolling Motions
In "Littlewood's Miscelleny" the celebrated mathematician John E. Littlewood noted that a hoop with an attached mass rolling on a ground plane may exhibit self-induced jumping. Subsequent works showed that his analysis was flawed and revealed paradoxical behavior that can be resolved by incorporating the inertia of the hoop. In our newly published paper in the Transactions A of the Royal Society tinyurl.com/littlewood-hoop a comprehensive analysis of the dynamics of the hoop is presented.