Prof. Zdenek Bazant (Northwestern University, USA) sent me a copy of the plenary lecture he delivered at Int. Conf. on Damage Mechanics 4 at LSU on May 15, 2023, to be posted. The lecture is about a critique of the theoretical inconsistencies in the Phase Field and Peridynamics techniques. Remarkably interesting talk that will create a significant discussion about the validity of these methods..
The Zdeněk P. Bažant Medal was established in 2022 by the Applied Mechanics Division and recognizes an individual who has made significant contributions to the field of mechanics through research, practice, teaching and/or outstanding leadership. For details, please go to: Zdeněk P. Bažant Medal
For a given class of materials, universal displacements are those displacements that can be maintained for any member of the class by applying only boundary tractions. In this paper we study universal displacements in compressible anisotropic linear elastic solids reinforced by a family of inextensible fibers. For each symmetry class and for a uniform distribution of straight fibers respecting the corresponding symmetry we characterize the respective universal displacements. A goal of this paper is to investigate how an internal constraint affects the set of universal displacements.
This work deals with the hydrodynamic interaction of two parallel circular cylinders, with identical radii, immersed in a viscous fluid initially at rest. One cylinder is stationary while the other one is imposed a harmonic motion with a moderate amplitude of vibration. The direction of motion is parallel to the line joining the centers of the two cylinders. The two dimensional fluid–structure problem is numerically solved by the Arbitrary Lagrangian–Eulerian method implemented in the open-source CFD code TrioCFD.
Dear Colleagues,
I invite you to read our latest paper published in ACS Nano: https://pubs.acs.org/doi/10.1021/acsnano.3c01223
Based on a new element model of solid body, the plastic limit analysis of plate is carried out. The new element model is a truss composed of 24 bars. Taking the simply supported square plate and rectangular plate under uniform load as an example, by comparing the new element method with the classical plastic limit analysis theory, it can be found that the limit load and the distribution of plastic zone obtained by the two methods are in good agreement.
This is a beautiful, unparalleled elastoplastic model for plastic materials.
Based on the equivalent stress and deformation of regular hexahedron microelement and truss element, a new truss element model is presented. It can be used to solve the elasto-plastic plane stress problem and spatial problem of steel. Through a large number of examples, the new element model can be found to have good accuracy.
The plastic limit of beams and frames have analyzed by using a new truss element model of solid bodies, compared with the plastic limit analysis method, it can be found that the limit load of the two methods are in good agreement.
Supplemental Videos:
(1) https://www.bilibili.com/video/BV1Yt4y1A7a1/?spm_id_from=333.999.0.0
(2) https://www.bilibili.com/video/BV1vg411U7Dv/?spm_id_from=333.999.0.0
Postdoctoral Research Assistant in Dynamic Fracture of Materials
We are seeking a highly talented and motivated researcher to work within our strong research group “Dynamics of material fracture” oriented at experimental and numerical investigation of mechanical response and failure of materials at high strain rates. This post is based in Prague, Czech Republic and is available for 2 years.
The detailed description how-to apply for the position and the application form can be found here:
"Order Parameter Engineering for Random Systems" published in High Entropy Alloys and Materials
Abstract:
