Abstract Stress relaxation of high-density polyethylene is addressed both experimentally and theoretically. Two types of stress relaxation testing are carried out: uniaxial tensile testing at constant test specimen length and compression testing of a 3D structure producing inhomogeneous deformation fields and relaxation. A constitutive model for isotropic, semi-crystalline polymers is also proposed. The model has […]
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Alexander Barlo presented his licentiate thesis entitled “Failure Prediction of Complex Load Cases in Sheet Metal Forming: Emphasis on Non-Linear Strain Paths, Stretch-Bending and Edge Effects” in front of an +50 people hybrid audience of online listeners and physically present people. Alex made a popular presentation of the background of his research and the findings […]
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The 2022 Techtank Conference was held Nov 30 2022 as an online event. The theme of the conference was “Smart Solutions for a Sustainable Production: – Applied methods and tools within stamping, forming and its supporting processes“. Several PDRL researchers took part and contributed to the event. More info Sharing
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8th of October was the Academic Ceremony at BTH with promotion of PhD’s and installation of professors among other things on the agenda. From Product Development Research Lab and the research subject of Mechanical Engineering we were very happy to see the installation of two new professors in Marco Bertoni, and Sophie Hallstedt. We also […]
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Abstract Liquid food packages consist of various polymers films, which are bonded together with Aluminum foil (Al-foil) using adhesion or by direct heat. The main aim of this research was to define important material properties such as fracture toughness and some FE-simulation material model parameters such as damage initiation, damage evolution, and the adhesion between […]
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Abstract The scanning electron microscope (SEM) is widely used in the analysis and research of materials, including fracture analysis, microstructure morphology, and nanomaterial analysis. With the rapid development of materials science and computer vision technology, the level of detection technology is constantly improving. In this paper, the deep learning method is used to intelligently identify […]
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This postdoctoral position is linked to ongoing research projects at the Department of Mechanical Engineering within simulation of sheet metal forming. Research focus is to achieve a more accurate failure prediction in the sheet metal forming process through a model and simulation-driven strategy. Sharing
Read More The work consists of teaching within and developing our educational programs, as well as participating in and initiating research projects within the department’s research area with a special focus on simulation support for sheet metal forming. Sharing
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Concluding remarks and results PREDICT has generated results and tools that are used to increase reliability of failure prediction of sheet metal forming simulation in finite element models (FE-model). The work in this project was focused to accurately model the effect of complex load cases like non-linear strain path (NLSP), stretch-bending and presence of edge […]
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BTH får drygt 6,5 miljoner kronor av Vinnova för arbetet att förutse och förhindra sprickor som uppstår vid plåtformning
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