For researchers and industrialists being active and/or interested in finite element modeling of machining operations and surface integrity:
Our group has recently published a study on micro-scale testing of short-term creep of cement paste using microcantilever testing. If you are interested, more details can be found at: https://www.researchgate.net/publication/341668724_Micro-cantilever_tes…;
Carotenuto A., Lunghi L., Piccolo V., Babaei M., Dayal K., Pugno N. M., Zingales M., Deseri L.*, Fraldi M. Mechanobiology predicts raft formations triggered by ligand-receptor activity across the cell membrane, Journal of the Mechanics and Physics of Solids 141 (2020) 103974 https://doi.org/10.1016/j.jmps.2020.103974
*Corresponding Author
A postdoctoral position in “Multi-Scale Modeling of Composites” is available in Tehrani Group in the Walker Department of Mechanical Engineering at UT Austin. The position starts in August 2020. The required qualifications for this position are as follows:
· Acquired a Ph.D. in Mechanical Engineering or a closely related field before the position start date.
PhD position(s) is available immediately in the Engineering Mechanics program in Aerospace Engineering Department at Iowa State University to perform theoretical and computational part of work on NSF-funded projects on the interaction between phase transformations and plasticity. Phase-field, micromechanical, and macroscale simulations using FEM are of interest, in close collaboration with experiments. Please send vita to Prof.
Interested in deep learning, scientific computations, solution, and inversion methods for PDE?
Check out the preprint at:
https://www.researchgate.net/publication/341478559_SciANN_A_Keras_wrapp…
Some problems are shared in our GitHub repository on how to use sciann for inversion and forward solution of:
Amit Acharya
(to appear in Comptes Rendus Mécanique)
A continuum model of fracture that describes, in principle, the propagation and interaction of
arbitrary distributions of cracks and voids with evolving topology without a 'fracture criterion'
is developed. It involves a 'law of motion' for crack-tips, primarily as a kinematical consequence
coupled with thermodynamics. Fundamental kinematics endows the crack-tip with a topological
charge. This allows the association of a kinematical conservation law for the charge, resulting
in a fundamental evolution equation for the crack-tip field, and in turn the crack fi eld. The
vectorial crack field degrades the elastic modulus in a physically justi fied anisotropic manner.
The mathematical structure of this conservation law allows an additive 'free' gradient of a scalar
field in the evolution of the crack field. We associate this naturally emerging scalar fi eld with the
porosity that arises in the modeling of ductile failure. Thus, porosity-rate gradients aff ect the
evolution of the crack- field which, then, naturally degrades the elastic modulus, and it is through
this fundamental mechanism that spatial gradients in porosity growth aff ect the strain-energy
density and stress carrying capacity of the material - and, as a dimensional consequence related
to fundamental kinematics, introduces a length-scale in the model. A key result of this work is
that brittle fracture is energy-driven while ductile fracture is stress-driven; under overall shear
loadings where mean stress vanishes or is compressive, shear strain energy can still drive shear
fracture in ductile materials.
Description
A Curtin Strategic Scholarship is available for Australian PR/Citizen. The candidate will work with Dr Kaiming Bi and Prof. Hong Hao in the area of Structural Engineering on vibration control of offshore wind turbines. The details regarding the supervisors can be found via https://staffportal.curtin.edu.au/staff/profile/view/Kaiming.Bi/ and https://staffportal.curtin.edu.au/staff/profile/view/Hong.Hao/.
