Requisites on material viscoelasticity for exceptional points in passive dynamical systems
Dear Colleagues,
I invite you to read our recent publication in the Journal of Physics: Materials: https://iopscience.iop.org/article/10.1088/2515-7639/ace381
research
miniSLM at Swiss Light Source reveals temperature excursions during laser-based 3D printing
Excellent paper looking at temperature profiles during LPBF AM (using miniSLM):
https://www.sciencedirect.com/science/article/pii/S2772369023000312
Of course, questions remain regarding the validity of temperature estimation method, max temp, max cooling rates etc. -
but it is an important step in the right direction!
Short Course on the VEM at USNCCM17
Hello All,
Gianmarco Manzini (LANL) and I are teaching a short course entitled: "Virtual Element Method in Solid and Fluid Mechanics" at USNCCM17 in Albuquerque, which will be held on Sunday, July 23rd, 2023. If you plan to be at the conference in-person, then do consider attending the short course. A summary of the course follows:
Plastic Limit Analysis of Plane Stress Problems by Truss Element
Jiang Ke. Plastic Limit Analysis of Plane Stress Problems by Truss Element. Preprint at https://doi.org/10.2139/ssrn.4476517 , 2023.
The Most Beautiful Animation of Plasticity in History
(1) https://www.bilibili.com/video/BV1ns4y1F7t1/?spm_id_from=333.999.0.0
Journal Club for July 2023: A Space-Time Odyssey - Taming Exceptional Points in Elastodynamics for Sensitivity and Emissivity Enhancement and Asymmetric Wave Steering
By: Ramathasan Thevamaran (Theva)
Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA.
Research Lab: https://thevamaran.engr.wisc.edu
Strain stiffening retards growth instability in residually stressed biological tissues
Soft biological tissues often exhibit notable strain stiffening under increasing stretch, and this can have significant effects on tissue growth and morphological development, such as causing symmetry breaking in growing airways and leading to mucosal folding and airway hyperresponsiveness. To investigate the role of strain stiffening and the multifactorial control in growth and remodeling, we consider a growing tubular structure with strain-stiffening effects caused by increased and tightened collagen.
Orientation-dependent plasticity mechanisms control synergistic property improvement in dynamically deformed metals
Dear Colleagues,
I invite you to read our recent paper on the orientation dependent plasticity mechanisms that control the dynamic creation of nanostructures and their behavior under subsequent quasistatic microcompression published in the International Journal of Plasticity: https://doi.org/10.1016/j.ijplas.2023.103657
Synergistic strength and toughness through impact-induced nanostructural evolutions in metals
Dear Colleagues,
I invite you to read our recent paper on the process-structure-property relations in heterogeneous nanostructured metals created through a laser induced projectile impact of single crystal microcubes published in the Extreme Mechanics Letters: https://doi.org/10.1016/j.eml.2023.102037
Constitutive theory for gels by considering molecular frictions
By directly considering molecular frictions induced on polymer chains, we have developed a nonaffine constitutive theory for large stretch behaviors of gels.
https://pubs.rsc.org/en/content/articlelanding/2023/sm/d2sm01340a#!#
Prof. Zdenek Bazant Plenary Lecture at ICDM 4 in Baton Rouge
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..