Origami lattices with free-form surface ornaments
Hello all,
I'm trying to model the buckling of a shell structure under thermal load.
The structure is square-shaped.
The left edge must be kept straight. To achieve that, I applied MPC Tie Constraint for its nodes.
The bottom edge must be fixed so that the BC applied at its nodes was U1 = U2 = U3 = 0.
Temperature is applied as a predefined field.
However, when I run the simulation the corner that connects both edges deforms very strangely which makes me question how to model it.
I appreciate any input. Thanks.
Title: Modeling and Simulation Engineer
Category: Full-time position in industry
Employer: Schlumberger Technology Corporation
Location: United States, Texas, Sugar Land
Opening Date: 12/01/2017
Job Description
Dear Colleagues,
You are cordially invited to submit your one-page abstract to our Mini-Symposium (MS502) "Multiscale Modeling in Bio-Mechanical Systems" for
13th World Congress in Computational Mechanics (WCCM2018)
Date & Location:
Marriott Marquis, New York City, NY, USA, July 22, 2018 - July 27, 2018
Dear Colleagues,
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This video explains the very fundamental points with regard to plasticity theory. It covers the following -
1) Why study plasticity ?
2) Additive decomposition of strain
3) stress and strength
4) Yield condition , flow rule & hardening rule
-Prithivi
Applications are invited for an immediate postdoctoral position within the Marine Additive Manufacturing Centre of Excellence at the University of New Brunswick. The candidate will perform research in the area of materials characterization of additively manufactured metals (aluminum or steels) developed through powder bed fusion techniques. The candidate will use several experimental techniques to characterize the 3D printed metals such as OM, SEM, EBSD measurements, fractography, and TEM.
Applications are invited for a Postdoctoral Fellow research position at the Center for Material Forming at Mines ParisTech. The Fellow will focus on computational modeling of discontinuous fibers composites. Code writing ability and strong background in mechanics are required. Applicants must hold a PhD in Mechanical Engineering, Applied Mathematics, or a related discipline.
Our recent review paper on how origami and kirigami techniques that could be used to create curved geometries has been just publised online. It is available as an open access article, which is why I am posting it here. We have also included some beautiful photos of our hand-folded origami and kirigami.
Callens, SJP, Zadpoor, AA, 2017, “From flat sheets to curved geometries: origami and kirigami approaches”, Materials Today, in press.
“Metamaterials” are the fabled materials exhibiting properties and functionalities that defy expectations. Or at least that's how I have always defined them to myself. These first emerged on the scientific scene in the nineties; or perhaps that is when an extensive flurry of activities on this subject can be traced to. The initial focus was on designing (what appeared to me as) composites with a specific geometrical inner structure that allowed the emergence of electromagnetic properties not typically seen in nature; such as negative refractive index.