Michael Berer
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View article: Biocompatibility of Materials Dedicated to Non-Traumatic Surgical Instruments Correlated to the Effect of Applied Force of Working Part on the Coronary Vessel
Biocompatibility of Materials Dedicated to Non-Traumatic Surgical Instruments Correlated to the Effect of Applied Force of Working Part on the Coronary Vessel Open
Cardiovascular clamping procedures can cause tissue traumatization, leading to serious adverse events interrupting blood flow and causing life-threatening hemorrhage. The aim of the study is to evaluate the properties of 3D-printed, high-e…
View article: Multi‐Material <scp>3D</scp> Printing of Soft Dielectric Actuators With Optimized Electrodes
Multi‐Material <span>3D</span> Printing of Soft Dielectric Actuators With Optimized Electrodes Open
Dielectric elastomer actuators (DEA) have gained increased attention in the design of electrically driven soft and lightweight robotic devices. They rely on Coulomb forces for their actuation and are able to undergo large displacements as …
View article: Morphological structure and mechanical properties of a nucleated Polyoxymethylene (POM) homopolymer resin processed under conventional injection molding conditions
Morphological structure and mechanical properties of a nucleated Polyoxymethylene (POM) homopolymer resin processed under conventional injection molding conditions Open
When injection molding semi-crystalline polymers, it is known that the resulting morphological and mechanical properties are strongly dependent on the processing conditions. Selectively influencing the performance of the final part as earl…
View article: Wavelength Selective Multi‐Material 3D Printing of Soft Active Devices Using Orthogonal Photoreactions
Wavelength Selective Multi‐Material 3D Printing of Soft Active Devices Using Orthogonal Photoreactions Open
Inside Cover: In article 2200586, Sandra Schlögl and co-workers demonstrate that Acrylate functional coumarin monomers are synthetized and cured by wavelength orthogonal photoreactions yielding soft (405 nm) and stiff (365 nm) networks. Ad…
View article: The effect of photolatent catalysts on the exchange kinetics of dual-wavelength 3D printable and photopatternable thiol-click vitrimers
The effect of photolatent catalysts on the exchange kinetics of dual-wavelength 3D printable and photopatternable thiol-click vitrimers Open
The use of photolatent transesterification catalysts provides a unique way to locally control dynamic bond exchange reactions in vitrimers.
View article: Powder ageing of Polyamide 6 in laser sintering and its effects on powder and component characteristics
Powder ageing of Polyamide 6 in laser sintering and its effects on powder and component characteristics Open
The increasing importance of Laser Sintering (LS) for the industry brings a rising number of available materials for this process. One example is the enhanced use of alternative polyamide types like polyamide 6 (PA 6). For polyamide 12 (PA…
View article: Asymmetric chiral and antichiral mechanical metamaterials with tunable Poisson’s ratio
Asymmetric chiral and antichiral mechanical metamaterials with tunable Poisson’s ratio Open
Mechanical metamaterials with zero or negative Poisson’s ratio were subject to increasing research interest over the last few years. Their energy absorption capabilities make them suitable for impact and dampening applications, such as per…
View article: Injection Molding Simulation of Polyoxymethylene Using Crystallization Kinetics Data and Comparison with the Experimental Process
Injection Molding Simulation of Polyoxymethylene Using Crystallization Kinetics Data and Comparison with the Experimental Process Open
It is well known that the processing conditions in polymer processing have a high impact on the resulting material morphology and consequently the component’s mechanical behavior. However, especially for semicrystalline polymers, the tools…
View article: Crack Propagation Analysis of Compression Loaded Rolling Elements
Crack Propagation Analysis of Compression Loaded Rolling Elements Open
The problem of crack propagation from internal defects in thermoplastic cylindrical bearing elements is addressed in this paper. The crack propagation in these elements takes place under mixed-mode conditions—i.e., all three possible loadi…
View article: Size-Induced Constraint Effects on Crack Initiation and Propagation Parameters in Ductile Polymers
Size-Induced Constraint Effects on Crack Initiation and Propagation Parameters in Ductile Polymers Open
Fracture mechanics are of high interest for the engineering design and structural integrity assessment of polymeric materials; however, regarding highly ductile polymers, many open questions still remain in terms of fully understanding def…
View article: Fatigue characterization of polyethylene under mixed mode I/III conditions
Fatigue characterization of polyethylene under mixed mode I/III conditions Open
Mixed mode I/III fatigue fracture behaviour of bulk polymers is scarcely investigated. Thus, the aim of this work is to focus on the comparison of pure mode I and mixed mode I/III fatigue loading of polyethylene. During mixed mode I/III te…
View article: Fracture of Thin-Walled Polyoxymethylene Bulk Specimens in Modes I and III
Fracture of Thin-Walled Polyoxymethylene Bulk Specimens in Modes I and III Open
Thin-walled polymeric components are used in many applications. Hence, knowledge about their fracture behavior in bulk is beneficial in practice. Within this study, the double cantilever beam (DCB) and out-of-plane double cantilever beam (…
View article: Stress intensity factors in novel specimens for crack propagation under loading conditions II+III in polymers
Stress intensity factors in novel specimens for crack propagation under loading conditions II+III in polymers Open
Since numerous service failures are reportedly occurring due to the cracks exposed to mixed-mode loading conditions, this topic started to attract more attention recently. Therefore, a special device was designed to study mixed mode loadin…
View article: Methods for automated crack length detection in fracture mechanical fatigue tests of unreinforced polymers
Methods for automated crack length detection in fracture mechanical fatigue tests of unreinforced polymers Open
The continuous measurement of crack growth during fracture mechanical fatigue tests is of great importance for an accurate lifetime estimation of components. Different methods for an automatic crack length detection exist for linear elasti…
View article: Fretting Behavior of Thermoplastic Polyurethanes
Fretting Behavior of Thermoplastic Polyurethanes Open
Fretting tests were conducted with five different thermoplastic polyurethanes against a steel ball. Their fretting behaviors were investigated under various test parameters, such as normal load and displacement amplitude. In order to test …