Blog posts
A constraint-free phase field model for ferromagnetic domain evolution
A continuum constraint-free phase field model is proposed to simulate the magnetic domain evolution in ferromagnetic materials. The model takes the polar and azimuthal angles (ϑ1, ϑ2), instead of the magnetization unit vector m(m1,m2,m3), as the order parameters. In this way, the constraint on the magnetization magnitude can be exactly satisfied automatically, and no special numerical treatment on the phase field evolution is needed.
Ansys workbench modelling problem
Hi
I'm a mechanical engineering working on modelling composite in ansys workbench. I have a problem in modelling a composite plate with ACP. To do this, i created a static structural and modeled a surface body of a plate and after applying loads and boundaries, i attached to it an ACP(Pre). The procedures has been done like Tutorial 1 of ACP of ansys workbench 15.
Postdoc in Mechanical Engineering (new graduate June 2014)
Hi everyone I'm looking for a postdoc in Mechanical Engineering, I prefer the domain of Composite and Heterogeneous Material Analysis and Simulation.
I'm seeking for your advices for a good application, and for Postdoc propositions.
Thank You for all.
Journal Club Theme of January 2015: Topology Optimization for Materials Design
Processing technologies are rapidly advancing and manufacturers now have the ability to control material architecture, or topology, at unprecedented length scales. This opens up the design space and provides exciting opportunities for tailoring material properties through design of the material’s topology. But as seen many times in history with advancements in materials and processing technologies, the natural default is to rely on familiar shapes and structure topologies.
The Cable Connection – Choosing the Perfect Lifeline for Your Machines
With the availability of different brands and grades of cables in the market, it can be pretty challenging to narrow down the options to a few good ones. As with several other things related to wires, a high price tag or big brand name doesn’t actually help in making the right selection. Instead, one has to look out for particular characteristics and specifications for picking the right cable.
The metric-restricted inverse design problem
Amit Acharya Marta Lewicka Mohammad Reza Pakzad
In Nonlinearity, 29, 1769-1797
We study a class of design problems in solid mechanics, leading to a variation on the
classical question of equi-dimensional embeddability of Riemannian manifolds. In this general new
context, we derive a necessary and sufficient existence condition, given through a system of total
diff erential equations, and discuss its integrability. In the classical context, the same approach
yields conditions of immersibility of a given metric in terms of the Riemann curvature tensor.
In the present situation, the equations do not close in a straightforward manner, and successive
diff erentiation of the compatibility conditions leads to a more sophisticated algebraic description
of integrability. We also recast the problem in a variational setting and analyze the infi mum value
of the appropriate incompatibility energy, resembling "non-Euclidean elasticity". We then derive a
Γ-convergence result for the dimension reduction from 3d to 2d in the Kirchhoff energy scaling
regime. A practical implementation of the algebraic conditions of integrability is also discussed.
Employment Opportunity - Program Directors at NSF
Dear Colleague Letter: Division of Civil, Mechanical and Manufacturing Innovation (CMMI), Mechanics of Materials and Structures (MoMS) – Employment Opportunity for Program Director Positions (Open Until Filled)
http://www.nsf.gov/pubs/2015/cmmi15001/cmmi15001.jsp?WT.mc_id=USNSF_147