Interfacial Failure in Stitched Foam Sandwich Composites

• Published in: Materials Vol. 14; no. 9; p. 2275
• Main Authors: Hu, Yue, Zhu, Jun, Wang, Jihui, Wu, Yibo
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 28.04.2021; MDPI
• Subjects: Beams (structural); Crack propagation; critical strain energy; Engineering; Fiber composites; Finite element analysis; foam sandwich composites; fracture process; Fracture testing; Glass fiber reinforced plastics; Interfaces; Interfacial properties; Laminates; Peak load; Preforms; Propagation; reinforcement stitching; Research centers; Sandwich structures; Stitching; Strain analysis; Sutures; vacuum-assisted molding; China; reinforcement stitching; critical strain energy; fracture process; foam sandwich composites; vacuum-assisted molding

In this paper, the use of a customized automatic reinforcement stitching equipment was demonstrated. The stitching of foam sandwich composite preforms was achieved to obtain structures with improved interfacial properties. The effect of different stitching spacings on the crack propagation process i...