{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T02:28:10Z","timestamp":1760236090579,"version":"build-2065373602"},"reference-count":31,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2021,10,22]],"date-time":"2021-10-22T00:00:00Z","timestamp":1634860800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>The work reported here intends to identify and mitigate the causes for failure in a plastic faucet holder, a part of an integral float faucet with a well-documented history of fracture occurrence. A methodology for the identification of hidden internal defects in plastic parts and the elaboration of the required corrective actions towards quality improvement is, therefore, presented. Firstly, part defects were identified via injection moulding process numerical simulation. The latter has enabled the prediction of an excessive volumetric shrinkage at the core of the faucet holder, highlighting the presence of internal voids and, hence, the possible deterioration of the load-bearing capacity. The supposition was later confirmed by X-ray topography scans. Part reengineering, consisting of localized thickness reduction, was the option chosen for decreasing the high shrinkage at the core. For validation purposes, structural analyses were carried out, with and without accounting for the injection moulding processing history. The results obtained during part structural analysis have enabled us to conclude that, when taking into account the residual stresses generated during injection moulding, the analysis more closely reflects the experimental data and allows us to implicitly envisage the propensity to fracture. Moreover, the part modifications, undertaken during the faucet holder reengineering, led to the reduction of the cumulative (processing and imposed by load) stresses by 50%, when compared to the original design analysed.<\/jats:p>","DOI":"10.3390\/ma14216303","type":"journal-article","created":{"date-parts":[[2021,10,22]],"date-time":"2021-10-22T09:18:09Z","timestamp":1634894289000},"page":"6303","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Computer-Aided Reengineering towards Plastic Part Failure Minimization"],"prefix":"10.3390","volume":"14","author":[{"given":"Tiago","family":"Pinho","sequence":"first","affiliation":[{"name":"Centre for Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, Campus Universit\u00e1rio de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2150-6241","authenticated-orcid":false,"given":"Tatiana","family":"Zhiltsova","sequence":"additional","affiliation":[{"name":"Centre for Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, Campus Universit\u00e1rio de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6190-1238","authenticated-orcid":false,"given":"M\u00f3nica","family":"Oliveira","sequence":"additional","affiliation":[{"name":"Centre for Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, Campus Universit\u00e1rio de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal"}]},{"given":"Andreia","family":"Costa","sequence":"additional","affiliation":[{"name":"OLI-Sistemas Sanit\u00e1rios, S.A. Travessa de Mil\u00e3o, Esgueira, 3800-314 Aveiro, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2021,10,22]]},"reference":[{"key":"ref_1","unstructured":"MacLean-Blevins, M.T. (2017). Designing Successful Products with Plastics: Fundamentals of Plastic Part Design, Elsevier Science."},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Torres-Alba, A., Mercado-Colmenero, J.M., Caballero-Garcia, J.D.D., and Martin-Do\u00f1ate, C. (2021). Application of New Triple Hook-Shaped Conformal Cooling Channels for Cores and Sliders in Injection Molding to Reduce Residual Stress and Warping in Complex Plastic Optical Parts. Polymers, 13.","DOI":"10.3390\/polym13172944"},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Hayes, M., Edwards, D., and Shah, A. (2015). 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