Mindermann Pascal, Gil Pérez Marta, Knippers Jan, Gresser Götz T
Institute for Textile and Fiber Technologies, University of Stuttgart, Pfaffenwaldring 9, 70569 Stuttgart, Germany.
Institute of Building Structures and Structural Design, University of Stuttgart, Keplerstraße 11, 70174 Stuttgart, Germany.
Materials (Basel). 2022 May 1;15(9):3260. doi: 10.3390/ma15093260.
Coreless filament winding is an emerging fabrication technology in the field of building construction with the potential to significantly decrease construction material consumption, while being fully automatable. Therefore, this technology could offer a solution to the increasing worldwide demand for building floor space in the next decades by optimizing and reducing the material usage. Current research focuses mainly on the design and engineering aspects while using carbon and glass fibers with epoxy resin; however, in order to move towards more sustainable structures, other fiber and resin material systems should also be assessed. This study integrates a selection of potential alternative fibers into the coreless filament winding process by adapting the fabrication equipment and process. A bio-based epoxy resin was introduced and compared to a conventional petroleum-based one. Generic coreless wound components were created for evaluating the fabrication suitability of selected alternative fibers. Four-point bending tests were performed for assessing the structural performance in relation to the sustainability of twelve alternative fibers and two resins. In this study, embodied energy and global warming potential from the literature were used as life-cycle assessment indexes to compare the material systems. Among the investigated fibers, flax showed the highest potential while bio-based resins are advisable at low fiber volume ratios.
无芯长丝缠绕是建筑施工领域中一种新兴的制造技术,具有显著减少建筑材料消耗的潜力,同时可实现完全自动化。因此,这项技术可以通过优化和减少材料使用,为未来几十年全球对建筑楼面空间不断增长的需求提供解决方案。目前的研究主要集中在使用碳纤维和玻璃纤维与环氧树脂时的设计和工程方面;然而,为了实现更可持续的结构,还应评估其他纤维和树脂材料体系。本研究通过调整制造设备和工艺,将多种潜在的替代纤维纳入无芯长丝缠绕工艺。引入了一种生物基环氧树脂,并与传统的石油基环氧树脂进行比较。制作了通用的无芯缠绕部件,以评估所选替代纤维的制造适用性。进行了四点弯曲试验,以评估与12种替代纤维和两种树脂的可持续性相关的结构性能。在本研究中,使用文献中的隐含能量和全球变暖潜能值作为生命周期评估指标,对材料体系进行比较。在所研究的纤维中,亚麻显示出最高的潜力,而在低纤维体积比时,生物基树脂是可取的。