Sheet metal forming operations consist of simple bending, to stretching to deep drawing of complex parts. The mechanical properties of the sheet material greatly influence its formability, which is a measure of the amount of deformation the material can withstand prior to fracture. This blog post covers important definitions determining sheet metal characteristics, the test methods, and the equipment used to quantify them.
The microelectronics revolution is one of the most influential drivers of current industrial developments. To probe the mechanical properties of ever shrinking materials and components, nanoindentation has come to be an omnipresent and indispensable method. In a recent combined experimental and computational approach, an international team of scientists was for the first time able to resolve the dynamic atomistic processes taking place at the elastic-plastic transition during nanoindentation.
2 PhD positions avaliable at the University of Porto in the framework of the European Training Network (ETN) New strategies for multifield fracture problems across scales in heterogeneous systems for Energy, Health and Transport – “NEWFRAC”. The details are available in the following links:
http://www.eracareers.pt/opportunities/index.aspx?task=global&jobId=124159
Dear all,
An update on the http://www.legato-team.eu at work in the COVID19 response in Luxembourg.
Check out http://www.ariana-tech.com a joint venture between Kyoto and Luxembourg.
PhD positions on Systems Science with specialization in computational mechanics are available at the IMT School for Advanced Studies Lucca (Tuscany, Italy), see the following previous posts on imechanica:
- A call for 1 PhD position in the framework of the H2020 Marie Curie Project NewFrac (deadline: 30 June 2020): https://imechanica.org/node/24161
We study the nature of an environment-induced exceptional point in a non-Hermitian pair of coupled mechanical oscillators. The mechanical oscillators are a pair of pillars carved out of a single isotropic elastodynamic medium made of aluminum and consist of carefully controlled differential losses. The interoscillator coupling originates exclusively from background modes associated with the “environment,” that portion of the structure which, if perfectly rigid, would support the oscillators without coupling.
Achieving high damping and stiffness is challenging in common materials because of their inter-dependent scaling. Controlling extreme mechanical waves requires synergistically enhanced damping and stiffness. We demonstrate superior damping and stiffness in vertically aligned carbon nanotube (VACNT) foams that are also independently controllable by exploiting their synthesis-tailored structural hierarchy and structural gradients. They exhibit frequency- and amplitude-dependent responses with dramatically tunable dynamic stiffness while maintaining constant damping.
The Bioengineering and Surgical Research Group at Departments of Surgery and Bioengineering at the University of Maryland, a national leader in development of circulatory and extracorporeal membrane oxygenation (ECMO) support devices is seeking three qualified Postdoctoral Researchers in the fields of Implantable Medical Devices and Bioengineering and/or related disciplines. Qualified applicants must be self-motivated, creative, and dependable and have strong communication and interpersonal skills. Selected candidates will have the great potential to grow to est
Distinct deformation mechanisms that emerge in nanoscale enable the nanostructured materials to exhibit outstanding specific mechanical properties. Here, we present superior microstructure- and strain-rate-dependent specific penetration energy (up to ∼3.8 MJ/kg) in semicrystalline poly(vinylidene fluoride-co-trifluoroethylene) (P(VDF-TrFE)) thin films subjected to high-velocity (100 m/s to 1 km/s) microprojectile (diameter: 9.2 μm) impacts.
