[{"status":"public","type":"journal_article","article_number":"100391","department":[{"_id":"9"}],"user_id":"76631","_id":"64985","project":[{"_id":"131","name":"TRR 285 - Project Area A"},{"name":"TRR 285 - Subproject A01","_id":"135"},{"_id":"130","name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"}],"intvolume":"        13","citation":{"ama":"Ludwig J-P, Tolke E, Schlichter MC, Bobbert M, Meschut G. Numerical analysis of the robustness of self-pierce riveting with pre-formed joining partners. <i>Journal of Advanced Joining Processes</i>. 2026;13. doi:<a href=\"https://doi.org/10.1016/j.jajp.2026.100391\">10.1016/j.jajp.2026.100391</a>","chicago":"Ludwig, Jean-Patrick, Emil Tolke, Malte Christian Schlichter, Mathias Bobbert, and Gerson Meschut. “Numerical Analysis of the Robustness of Self-Pierce Riveting with Pre-Formed Joining Partners.” <i>Journal of Advanced Joining Processes</i> 13 (2026). <a href=\"https://doi.org/10.1016/j.jajp.2026.100391\">https://doi.org/10.1016/j.jajp.2026.100391</a>.","ieee":"J.-P. Ludwig, E. Tolke, M. C. Schlichter, M. Bobbert, and G. Meschut, “Numerical analysis of the robustness of self-pierce riveting with pre-formed joining partners,” <i>Journal of Advanced Joining Processes</i>, vol. 13, Art. no. 100391, 2026, doi: <a href=\"https://doi.org/10.1016/j.jajp.2026.100391\">10.1016/j.jajp.2026.100391</a>.","mla":"Ludwig, Jean-Patrick, et al. “Numerical Analysis of the Robustness of Self-Pierce Riveting with Pre-Formed Joining Partners.” <i>Journal of Advanced Joining Processes</i>, vol. 13, 100391, Elsevier BV, 2026, doi:<a href=\"https://doi.org/10.1016/j.jajp.2026.100391\">10.1016/j.jajp.2026.100391</a>.","bibtex":"@article{Ludwig_Tolke_Schlichter_Bobbert_Meschut_2026, title={Numerical analysis of the robustness of self-pierce riveting with pre-formed joining partners}, volume={13}, DOI={<a href=\"https://doi.org/10.1016/j.jajp.2026.100391\">10.1016/j.jajp.2026.100391</a>}, number={100391}, journal={Journal of Advanced Joining Processes}, publisher={Elsevier BV}, author={Ludwig, Jean-Patrick and Tolke, Emil and Schlichter, Malte Christian and Bobbert, Mathias and Meschut, Gerson}, year={2026} }","short":"J.-P. Ludwig, E. Tolke, M.C. Schlichter, M. Bobbert, G. Meschut, Journal of Advanced Joining Processes 13 (2026).","apa":"Ludwig, J.-P., Tolke, E., Schlichter, M. C., Bobbert, M., &#38; Meschut, G. (2026). Numerical analysis of the robustness of self-pierce riveting with pre-formed joining partners. <i>Journal of Advanced Joining Processes</i>, <i>13</i>, Article 100391. <a href=\"https://doi.org/10.1016/j.jajp.2026.100391\">https://doi.org/10.1016/j.jajp.2026.100391</a>"},"publication_identifier":{"issn":["2666-3309"]},"publication_status":"published","doi":"10.1016/j.jajp.2026.100391","volume":13,"author":[{"id":"76631","full_name":"Ludwig, Jean-Patrick","last_name":"Ludwig","first_name":"Jean-Patrick"},{"last_name":"Tolke","full_name":"Tolke, Emil","first_name":"Emil"},{"id":"61977","full_name":"Schlichter, Malte Christian","last_name":"Schlichter","first_name":"Malte Christian"},{"first_name":"Mathias","full_name":"Bobbert, Mathias","id":"7850","last_name":"Bobbert"},{"full_name":"Meschut, Gerson","id":"32056","last_name":"Meschut","orcid":"0000-0002-2763-1246","first_name":"Gerson"}],"date_updated":"2026-03-16T12:38:13Z","abstract":[{"text":"Modern industrial development has necessitated a wide range of joining technologies. Self-pierce riveting has become a prevalent technique for sheet metal assembly, especially in automotive applications. Achieving proper joint geometry and adequate load-bearing capacity depends on appropriate tool selection and precise process control. Material properties and condition also play a significant role in process performance. To accommodate the inevitable variations in component characteristics during production, a robust and stable joining process is essential. The study focuses on investigating the influence of preformed joining partners on the joining process and the joint's load capacity. An EN AW-6014 in T4 condition, as well as an HCT590X, are used as materials for this study. For this purpose, an exemplary process chain consisting of the steps of performing, joining, and shear load testing is studied. Each process step is implemented using an FE model to predict the outcome of subsequent steps. For analysis of the influence of pre-strain, an optimisation software is used to plan and execute variations of the process. These variations are used to create a meta-model that can describe the relationships between pre-forming and characteristic parameters of subsequent process steps. The resulting model is validated by comparing simulation and experimental data. Finally, in a novel approach, the robustness of the presented process chain is analyzed in terms of a tolerable performance level for the joining partners.","lang":"eng"}],"publication":"Journal of Advanced Joining Processes","language":[{"iso":"eng"}],"keyword":["Self-pierce riveting","FE modelling","Plastic pre-deformation","Meta modelling"],"year":"2026","quality_controlled":"1","title":"Numerical analysis of the robustness of self-pierce riveting with pre-formed joining partners","date_created":"2026-03-16T12:30:39Z","publisher":"Elsevier BV"},{"quality_controlled":"1","year":"2024","corporate_editor":["Bundeszentrale für politische Bildung"],"publisher":"Bundeszentrale für politische Bildung","date_created":"2024-03-13T15:08:27Z","title":"Alles geht? Die jüngste Geschichte der „sozialen Medien“. Zwischen Wirtschaft und Gemeinschaft","publication":"Soziale Medien – wie sie wurden, was sie sind","abstract":[{"lang":"eng","text":"Twitter ist jetzt X und befindet sich auf dem absteigenden Ast. Auf diesem Ast sitzt Facebook bereits seit längerem. Der Kurzvideodienst Vine, Vorgänger von TikTok, ist Geschichte. Und auch bei Google klingeln die Alarmglocken angesichts der „neuen“ Konkurrenz durch Microsoft und ChatGPT. Umso dringlicher wird also die Historisierung der „sozialen Medien“, das heißt, sie in ihren historischen Kontext einzuordnen und ihren Mythos zu entzaubern. Dabei wartet das Vorhaben mit einer doppelten Herausforderung auf: Erstens, dass es sich bei den Unternehmen der Branche und zweitens auch bei den dort gebildeten Gemeinschaften um recht flüchtige, wandelhaften Gestalten handelt. Scheitern und Wandel ist Teil der „sozialen Medien“ – und sei es nur in der schnellen Abfolge der Moden des „nächsten großen Dings“. Dementsprechend versucht dieser Beitrag mit einem systematischeren Ansatz als dem der gesellschaftlichen Selbstbeschreibung, die Entwicklung des sozio-digitalen Phänomens „soziale Medien“ in dessen Zeitkontext einzuordnen."}],"keyword":["Digitalgeschichte","Soziale Medien","Technikgeschichte","Wirtschaftsgeschichte","Digitalisierung","Twitter","Facebook","Meta"],"language":[{"iso":"eng"}],"place":"Bonn","citation":{"ieee":"M. Schmitt, “Alles geht? Die jüngste Geschichte der „sozialen Medien“. Zwischen Wirtschaft und Gemeinschaft,” in <i>Soziale Medien – wie sie wurden, was sie sind</i>, Bundeszentrale für politische Bildung, Ed. Bonn: Bundeszentrale für politische Bildung, 2024.","chicago":"Schmitt, Martin. “Alles Geht? Die Jüngste Geschichte Der „sozialen Medien“. Zwischen Wirtschaft Und Gemeinschaft.” In <i>Soziale Medien – Wie Sie Wurden, Was Sie Sind</i>, edited by Bundeszentrale für politische Bildung. Bonn: Bundeszentrale für politische Bildung, 2024.","ama":"Schmitt M. Alles geht? Die jüngste Geschichte der „sozialen Medien“. Zwischen Wirtschaft und Gemeinschaft. In: Bundeszentrale für politische Bildung, ed. <i>Soziale Medien – Wie Sie Wurden, Was Sie Sind</i>. Bundeszentrale für politische Bildung; 2024.","mla":"Schmitt, Martin. “Alles Geht? Die Jüngste Geschichte Der „sozialen Medien“. Zwischen Wirtschaft Und Gemeinschaft.” <i>Soziale Medien – Wie Sie Wurden, Was Sie Sind</i>, edited by Bundeszentrale für politische Bildung, Bundeszentrale für politische Bildung, 2024.","short":"M. Schmitt, in: Bundeszentrale für politische Bildung (Ed.), Soziale Medien – Wie Sie Wurden, Was Sie Sind, Bundeszentrale für politische Bildung, Bonn, 2024.","bibtex":"@inbook{Schmitt_2024, place={Bonn}, title={Alles geht? Die jüngste Geschichte der „sozialen Medien“. Zwischen Wirtschaft und Gemeinschaft}, booktitle={Soziale Medien – wie sie wurden, was sie sind}, publisher={Bundeszentrale für politische Bildung}, author={Schmitt, Martin}, editor={Bundeszentrale für politische Bildung}, year={2024} }","apa":"Schmitt, M. (2024). Alles geht? Die jüngste Geschichte der „sozialen Medien“. Zwischen Wirtschaft und Gemeinschaft. In Bundeszentrale für politische Bildung (Ed.), <i>Soziale Medien – wie sie wurden, was sie sind</i>. Bundeszentrale für politische Bildung."},"jel":["N80"],"oa":"1","date_updated":"2024-03-13T15:21:23Z","author":[{"first_name":"Martin","id":"100968","full_name":"Schmitt, Martin","last_name":"Schmitt"}],"main_file_link":[{"open_access":"1","url":"https://www.bpb.de/themen/medien-journalismus/soziale-medien/545767/alles-geht-die-juengste-geschichte-der-sozialen-medien/"}],"type":"book_chapter","status":"public","_id":"52538","user_id":"100968","department":[{"_id":"514"}]},{"date_updated":"2022-11-30T14:04:09Z","date_created":"2022-11-30T13:58:04Z","author":[{"full_name":"Gräßler, Iris","id":"47565","orcid":"0000-0001-5765-971X","last_name":"Gräßler","first_name":"Iris"},{"last_name":"Koch","id":"44158","full_name":"Koch, Anna-Sophie","first_name":"Anna-Sophie"}],"title":"Evaluation Criteria in Product Idea Selection Decisions","conference":{"name":"XXXIII ISPIM Innovation Conference \"Innovating in a Digital World\"","start_date":"2022-06-05","end_date":"2022-06-08","location":"Copenhagen, Denmark"},"publication_status":"published","quality_controlled":"1","publication_identifier":{"isbn":["978-952-335-694-8"]},"year":"2022","place":"Manchester","citation":{"bibtex":"@inproceedings{Gräßler_Koch_2022, place={Manchester}, series={Event Proceedings: LUT Scientific and Expertise Publications}, title={Evaluation Criteria in Product Idea Selection Decisions}, booktitle={XXXIII Proceedings of the ISPIM Innovation Conference}, author={Gräßler, Iris and Koch, Anna-Sophie}, year={2022}, collection={Event Proceedings: LUT Scientific and Expertise Publications} }","mla":"Gräßler, Iris, and Anna-Sophie Koch. “Evaluation Criteria in Product Idea Selection Decisions.” <i>XXXIII Proceedings of the ISPIM Innovation Conference</i>, 2022.","short":"I. Gräßler, A.-S. Koch, in: XXXIII Proceedings of the ISPIM Innovation Conference, Manchester, 2022.","apa":"Gräßler, I., &#38; Koch, A.-S. (2022). Evaluation Criteria in Product Idea Selection Decisions. <i>XXXIII Proceedings of the ISPIM Innovation Conference</i>. XXXIII ISPIM Innovation Conference “Innovating in a Digital World,” Copenhagen, Denmark.","ieee":"I. Gräßler and A.-S. Koch, “Evaluation Criteria in Product Idea Selection Decisions,” presented at the XXXIII ISPIM Innovation Conference “Innovating in a Digital World,” Copenhagen, Denmark, 2022.","chicago":"Gräßler, Iris, and Anna-Sophie Koch. “Evaluation Criteria in Product Idea Selection Decisions.” In <i>XXXIII Proceedings of the ISPIM Innovation Conference</i>. Event Proceedings: LUT Scientific and Expertise Publications. Manchester, 2022.","ama":"Gräßler I, Koch A-S. Evaluation Criteria in Product Idea Selection Decisions. In: <i>XXXIII Proceedings of the ISPIM Innovation Conference</i>. Event Proceedings: LUT Scientific and Expertise Publications. ; 2022."},"_id":"34166","series_title":"Event Proceedings: LUT Scientific and Expertise Publications","user_id":"44158","department":[{"_id":"152"}],"keyword":["innovation management","evaluation criteria","idea selection","idea evaluation","meta-study"],"language":[{"iso":"eng"}],"type":"conference","publication":"XXXIII Proceedings of the ISPIM Innovation Conference","abstract":[{"lang":"eng","text":"Within innovation management, choosing the best fitting product idea is the most important decision point. The future existence and success of the organization is depending on selected product ideas. To find the best fitting idea for an organization, it needs evaluation criteria representing the organizations mission Therefore, this study focuses on a holistic overview about evaluation criteria and on supporting organizations in the process to select its individual evaluation criteria. Based on a literature study, existing approaches regarding evaluation criteria in product idea selection are identified and a list of evaluation criteria is reworked. Using the list of evaluation criteria, a prioritization method is created. Within an interview with experts in innovation management, the method is discussed regarding usability and the level of assistance in product idea selection. The developed criteria can be used directly by innovation manager and industrial practitioners to evaluate potential product ideas."}],"status":"public"},{"_id":"24079","department":[{"_id":"152"}],"user_id":"77594","status":"public","type":"conference","conference":{"name":"The ISPIM Innovation Conference","start_date":"2021-06-20","end_date":"2021-06-23","location":"Berlin"},"main_file_link":[{"url":"https://www.proquest.com/openview/51c396eb1257d5212db9e4fe0c32a4bf/"}],"date_updated":"2022-01-06T06:56:06Z","author":[{"full_name":"Gräßler, Iris","id":"47565","orcid":"0000-0001-5765-971X","last_name":"Gräßler","first_name":"Iris"},{"id":"44158","full_name":"Koch, Anna-Sophie","last_name":"Koch","first_name":"Anna-Sophie"},{"id":"33419","full_name":"Thiele, Henrik","last_name":"Thiele","first_name":"Henrik"},{"last_name":"Dattner","full_name":"Dattner, Michael","first_name":"Michael"}],"place":"Berlin","jel":["O31"],"citation":{"ieee":"I. Gräßler, A.-S. Koch, H. Thiele, and M. Dattner, “Supporting Innovation Management for SMEs: A Tool for Idea Selection,” presented at the The ISPIM Innovation Conference, Berlin, 2021.","chicago":"Gräßler, Iris, Anna-Sophie Koch, Henrik Thiele, and Michael Dattner. “Supporting Innovation Management for SMEs: A Tool for Idea Selection.” In <i>Proceedings of the ISPIM Innovation Conference</i>. Berlin: LUT Scientific and Expertise Publications, 2021.","ama":"Gräßler I, Koch A-S, Thiele H, Dattner M. Supporting Innovation Management for SMEs: A Tool for Idea Selection. In: <i>Proceedings of the ISPIM Innovation Conference</i>. LUT Scientific and Expertise Publications; 2021.","short":"I. Gräßler, A.-S. Koch, H. Thiele, M. Dattner, in: Proceedings of the ISPIM Innovation Conference, LUT Scientific and Expertise Publications, Berlin, 2021.","bibtex":"@inproceedings{Gräßler_Koch_Thiele_Dattner_2021, place={Berlin}, title={Supporting Innovation Management for SMEs: A Tool for Idea Selection}, booktitle={Proceedings of the ISPIM Innovation Conference}, publisher={LUT Scientific and Expertise Publications}, author={Gräßler, Iris and Koch, Anna-Sophie and Thiele, Henrik and Dattner, Michael}, year={2021} }","mla":"Gräßler, Iris, et al. “Supporting Innovation Management for SMEs: A Tool for Idea Selection.” <i>Proceedings of the ISPIM Innovation Conference</i>, LUT Scientific and Expertise Publications, 2021.","apa":"Gräßler, I., Koch, A.-S., Thiele, H., &#38; Dattner, M. (2021). Supporting Innovation Management for SMEs: A Tool for Idea Selection. <i>Proceedings of the ISPIM Innovation Conference</i>. The ISPIM Innovation Conference, Berlin."},"publication_identifier":{"unknown":[" 978-952-335-467-8"]},"publication_status":"published","keyword":["innovation management","SME","evaluation method","idea selection","meta-study","idea evaluation"],"language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"In innovation management, usually there is a large number of product ideas, not all of which meet the requirements of a company and make sense to pursue further. For selecting the most promising ideas, several methods exist which each focus on a certain aspect. Due to the characteristics of Small and Medium Enterprises (SMEs) such as limited resources, these enterprises have special requirements on methods for selecting ideas. In this study, criteria of SMEs for idea selection are deducted from SME-characteristics. Methods for idea selection are tested for fulfillment of these criteria and the results are combined in a matrix. Together with a guideline, a tool for idea selection in innovation management of SMEs is developed. The results are validated in the context of innovation management in SMEs. By selecting a method, a SME is enabled to make economically viable decisions for their product portfolio, thus\r\nensuring sustainable economic success."}],"publication":"Proceedings of the ISPIM Innovation Conference","title":"Supporting Innovation Management for SMEs: A Tool for Idea Selection","publisher":"LUT Scientific and Expertise Publications","date_created":"2021-09-09T13:25:00Z","year":"2021","quality_controlled":"1"},{"language":[{"iso":"eng"}],"ddc":["000"],"keyword":["Business value","Information systems","Literature review","Meta review"],"publication":"Business \\& Information Systems Engineering (BISE)","file":[{"content_type":"application/pdf","relation":"main_file","creator":"hsiemes","date_created":"2018-12-11T15:19:37Z","date_updated":"2018-12-13T15:17:12Z","file_name":"BISE-PreservingknowledgeonISbusinessvalue-Manuscript-1.pdf","access_level":"open_access","file_id":"6187","file_size":525443}],"abstract":[{"text":"The economic relevance of information systems has been studied for many years and has attracted an abundance of research papers. However, the ?productivity paradoxon? of the 90s, Carr?s widely recognized paper ?IT doesn?t matter?, and several studies that do not find a positive correlation between IS investments and economic performance reveal long-lasting difficulties for IS researchers to explain ?IS business value?. Business executives and researchers also continue to question the value of IS investments. This raises the question of whether literature reviews have tapped their potential to address the concerns by covering key research areas of IS business value and preserving their key findings. In order to address this question, this paper identifies and describes 12 key research areas, and synthesizes what literature reviews published in pertinent academic outlets have done to preserve knowledge. The analysis of 22 literature reviews shows that some crucial areas have not been (sufficiently) covered. They provide fertile areas for future literature reviews. As this work is based on the results of more than 200 research papers, it is capable of drawing a comprehensive picture of the current state-of-the-art in IS business value research.","lang":"eng"}],"date_created":"2018-11-14T14:38:02Z","publisher":"Springer","title":"Preserving knowledge on IS business value: what literature reviews have done","issue":"4","year":"2010","user_id":"61579","department":[{"_id":"277"}],"_id":"5644","extern":"1","file_date_updated":"2018-12-13T15:17:12Z","type":"journal_article","status":"public","author":[{"full_name":"Schryen, Guido","id":"72850","last_name":"Schryen","first_name":"Guido"}],"volume":52,"date_updated":"2022-01-06T07:02:19Z","oa":"1","has_accepted_license":"1","citation":{"apa":"Schryen, G. (2010). Preserving knowledge on IS business value: what literature reviews have done. <i>Business \\&#38; Information Systems Engineering (BISE)</i>, <i>52</i>(4), 225–237.","short":"G. Schryen, Business \\&#38; Information Systems Engineering (BISE) 52 (2010) 225–237.","mla":"Schryen, Guido. “Preserving Knowledge on IS Business Value: What Literature Reviews Have Done.” <i>Business \\&#38; Information Systems Engineering (BISE)</i>, vol. 52, no. 4, Springer, 2010, pp. 225–37.","bibtex":"@article{Schryen_2010, title={Preserving knowledge on IS business value: what literature reviews have done}, volume={52}, number={4}, journal={Business \\&#38; Information Systems Engineering (BISE)}, publisher={Springer}, author={Schryen, Guido}, year={2010}, pages={225–237} }","ieee":"G. Schryen, “Preserving knowledge on IS business value: what literature reviews have done,” <i>Business \\&#38; Information Systems Engineering (BISE)</i>, vol. 52, no. 4, pp. 225–237, 2010.","chicago":"Schryen, Guido. “Preserving Knowledge on IS Business Value: What Literature Reviews Have Done.” <i>Business \\&#38; Information Systems Engineering (BISE)</i> 52, no. 4 (2010): 225–37.","ama":"Schryen G. Preserving knowledge on IS business value: what literature reviews have done. <i>Business \\&#38; Information Systems Engineering (BISE)</i>. 2010;52(4):225-237."},"page":"225-237","intvolume":"        52"}]