A5032329446- Numerical methods in engineering
- Advanced ceramic materials synthesis
- Fatigue and fracture mechanics
- High-Velocity Impact and Material Behavior
- Innovative Energy Harvesting Technologies
- Mechanical Behavior of Composites
- Advanced Sensor and Energy Harvesting Materials
- Cellular and Composite Structures
- Innovations in Concrete and Construction Materials
- Ultrasonics and Acoustic Wave Propagation
- Mechanical and Optical Resonators
- Composite Material Mechanics
- Advanced materials and composites
- Ferroelectric and Piezoelectric Materials
- Material Properties and Failure Mechanisms
- Asphalt Pavement Performance Evaluation
- Force Microscopy Techniques and Applications
- Structural Health Monitoring Techniques
- Advanced MEMS and NEMS Technologies
- Acoustic Wave Resonator Technologies
- Energy Harvesting in Wireless Networks
- Aluminum Alloys Composites Properties
- Advancements in Solid Oxide Fuel Cells
- Smart Materials for Construction
- Dielectric materials and actuators
Brno University of Technology
2015-2024
Czech Academy of Sciences, Institute of Physics of Materials
2022
Materials Center Leoben (Austria)
2012
Nanomechanical resonators are routinely used for identification of various analytes such as biological and chemical molecules, viruses, or bacteria cells from the frequency response. This based on multimode shift measurement is limited to analyte mass that much lighter than resonator mass. Hence, can be modeled a point particle and, such, its stiffness nontrivial binding effects surface stress neglected. For heavy (>MDa), this identification, however, leads incorrectly estimated masses....
Abstract Crack initiation in brittle materials upon spherical indentation is associated with the tensile radial stresses during loading. However, location of crack onset often differs (offset) from site maximal stress. In addition, experiments reveal a strong dependency forces on geometrical parameters as well surface condition sample. this work, coupled stress–energy fracture criterion introduced to describe ring cracks materials, which takes into account geometry contact and inherent...
Impact of residual stresses on the thermal shock resistance alumina–zirconia multi-layer ceramics is investigated within framework finite fracture mechanics, using a stress-energy criterion. The critical temperature difference (ΔTc) for crack formation strongly dependent magnitude stress and material's strength. predicted minimal spacing between cracks, time initiation, initial depth induced cracks are compared discussed different designs. An increase up to ∼ 40 % in ΔTc multi-material with...
This contribution gives an overview of different fracture-mechanics issues occurring in layered ceramics designed with internal compressive residual stresses (such as the edge cracking, crack arrest by layer or deflection/bifurcation) and proposes effective approach to describe initiation and/or propagation cracks such materials. The finite fracture mechanics (FFM) theory coupled stress-energy criterion (CC) are discussed applied understand their behavior. is based on tensile strength...