O. Kolednik
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View article: Crack deflection by design – Utilizing the material inhomogeneity effect on miniaturized additively manufactured structures
Crack deflection by design – Utilizing the material inhomogeneity effect on miniaturized additively manufactured structures Open
A natural crack exhibits a surrounding stress field, which may overlap considerably with a stress field caused by any material inhomogeneity, influencing the crack driving force and extension direction. To utilize this effect for potential…
View article: Characterization methods for strain‐induced damage in polypropylene
Characterization methods for strain‐induced damage in polypropylene Open
Various methods are used to characterize the deterioration of mechanical properties in polymers. The focus is set on distinguishing between time‐dependent and irreversible damage in two different grades of polypropylene. First, digital ima…
View article: Optimization of Mechanical Properties and Damage Tolerance in Polymer-Mineral Multilayer Composites
Optimization of Mechanical Properties and Damage Tolerance in Polymer-Mineral Multilayer Composites Open
Talcum reinforced polypropylene was enhanced with a soft type of polypropylene in order to increase the impact strength and damage tolerance of the material. The soft phase was incorporated in the form of continuous interlayers, where the …
View article: Linking Macroscopic Fracture Properties to Single Dislocation Processes
Linking Macroscopic Fracture Properties to Single Dislocation Processes Open
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View article: In-situ elastic-plastic fracture mechanics on the microscale by means of continuous dynamical testing
In-situ elastic-plastic fracture mechanics on the microscale by means of continuous dynamical testing Open
Measuring the local behaviour of a propagating crack in a quantitative manner has always been a challenge in the field of fracture mechanics. In-situ microcantilever testing inside a scanning electron microscope (SEM) is one of the most pr…
View article: Thermal shock resistance of magnesia spinel refractories—Investigation with the concept of configurational forces
Thermal shock resistance of magnesia spinel refractories—Investigation with the concept of configurational forces Open
In magnesia-spinel refractories, spinel inclusions are embedded in a magnesia matrix in order to increase the thermal shock resistance by micro-crack toughening. The paper investigates damage evolution in the material during the cooling at…
View article: The Prediction of the Crack Propagation Direction According to the Criterion of Maximum Energy Dissipation
The Prediction of the Crack Propagation Direction According to the Criterion of Maximum Energy Dissipation Open
An efficient tool is presented to predict the behavior of cracks in all kinds of multi-phase or composite materials where the material properties exhibit a spatial variation. Based on the material (or configurational) force approach, this …
View article: The mechanics of tessellations – bioinspired strategies for fracture resistance
The mechanics of tessellations – bioinspired strategies for fracture resistance Open
Two- or three-dimensional tiling improves the fracture resistance of natural and bioinspired materials and may even provide additional functionality.