{"citation":{"bibtex":"@article{Wippermann_Meschut_2025, title={Numerical modeling of clamp load relaxation of plastic nuts under varying moisture and fiber contents}, DOI={<a href=\"https://doi.org/10.1007/s40194-025-01928-4\">10.1007/s40194-025-01928-4</a>}, journal={Welding in the World}, publisher={Springer Science and Business Media LLC}, author={Wippermann, Jan and Meschut, Gerson}, year={2025} }","apa":"Wippermann, J., &#38; Meschut, G. (2025). Numerical modeling of clamp load relaxation of plastic nuts under varying moisture and fiber contents. <i>Welding in the World</i>. <a href=\"https://doi.org/10.1007/s40194-025-01928-4\">https://doi.org/10.1007/s40194-025-01928-4</a>","ama":"Wippermann J, Meschut G. Numerical modeling of clamp load relaxation of plastic nuts under varying moisture and fiber contents. <i>Welding in the World</i>. Published online 2025. doi:<a href=\"https://doi.org/10.1007/s40194-025-01928-4\">10.1007/s40194-025-01928-4</a>","short":"J. Wippermann, G. Meschut, Welding in the World (2025).","mla":"Wippermann, Jan, and Gerson Meschut. “Numerical Modeling of Clamp Load Relaxation of Plastic Nuts under Varying Moisture and Fiber Contents.” <i>Welding in the World</i>, Springer Science and Business Media LLC, 2025, doi:<a href=\"https://doi.org/10.1007/s40194-025-01928-4\">10.1007/s40194-025-01928-4</a>.","ieee":"J. Wippermann and G. Meschut, “Numerical modeling of clamp load relaxation of plastic nuts under varying moisture and fiber contents,” <i>Welding in the World</i>, 2025, doi: <a href=\"https://doi.org/10.1007/s40194-025-01928-4\">10.1007/s40194-025-01928-4</a>.","chicago":"Wippermann, Jan, and Gerson Meschut. “Numerical Modeling of Clamp Load Relaxation of Plastic Nuts under Varying Moisture and Fiber Contents.” <i>Welding in the World</i>, 2025. <a href=\"https://doi.org/10.1007/s40194-025-01928-4\">https://doi.org/10.1007/s40194-025-01928-4</a>."},"year":"2025","publication_identifier":{"issn":["0043-2288","1878-6669"]},"user_id":"55686","type":"journal_article","_id":"58438","publisher":"Springer Science and Business Media LLC","abstract":[{"lang":"eng","text":"This study presents a numerical approach using a 3D finite element model to quantify the remaining clamp load of a plastic nut joint after a specific time. The viscoelastic relaxation of a thermoplastic nut, which is predominantly screwed on a welding stud, is described by a material card using Prony Series. Prony Series are derived from experimental dynamical mechanical analysis with different moisture and fiber contents of the thermoplastic. Since plastic nuts usually do not have preformed threads, the increased temperatures and resulting stresses from the thread-forming process are considered in the simulation. An FE model is created and verified by substrate stress relaxation tests. Experimental clamp load measurements with miniature compression load cells verify the clamp load prediction and show a good agreement. The developed model is used to analyze the clamp load distribution within the threads and reveals an almost even distribution within the threads."}],"title":"Numerical modeling of clamp load relaxation of plastic nuts under varying moisture and fiber contents","language":[{"iso":"eng"}],"date_created":"2025-01-30T14:26:50Z","department":[{"_id":"157"}],"date_updated":"2025-01-30T14:40:06Z","author":[{"full_name":"Wippermann, Jan","first_name":"Jan","last_name":"Wippermann"},{"last_name":"Meschut","first_name":"Gerson","full_name":"Meschut, Gerson"}],"status":"public","publication":"Welding in the World","publication_status":"published","doi":"10.1007/s40194-025-01928-4","quality_controlled":"1"}