A flexible tooling and local consolidation process to manufacture 1D lattice truss composite structure. (5th June 2015)

• Record Type: Journal Article
• Authors: Lai, Changliang; Wang, Junbiao; Liu, Chuang; Fan, Hualin; Xu, Binbin; Wu, Kaijing
• Is Part Of: Composites science and technology. Volume 113(2015)
• Page Start: 63
• Page End: 70
• Publication Date: 2015-06-05
• Subjects: A. Structural composites -- B. Strength -- E. Filament winding; Composite materials -- Periodicals; Composite materials; Fibrous composites; Periodicals; 620.118
• DOI: 10.1016/j.compscitech.2015.03.018
• Languages: English
• ISSNs: 0266-3538

Abstract

Abstract: A flexible tooling for one-dimensional (1D) lattice truss composite structure (LTCS) was presented. To facilitate the tooling design, the design of its key parts was mathematically modeled. Additionally, to reduce the consolidation workloads, a local consolidation method was employed. In the locally-consolidated specimen, aramid threads are only wrapped around longitudinal members, which can reduce at least two-thirds time required by the entire consolidation process. Using the flexible tooling and adopting entire consolidation, local consolidation and non-consolidation processes, 1D LTCS specimens were manufactured. Compression tests were carried out to evaluate their mechanical performances. The test results indicate that the local consolidation method captures 48% improvement in compression strength compared to the non-consolidated specimen, and does not weaken the compressive stiffness and strength compared to the entire consolidation process.