Nanoindentation measurement of core–skin interphase viscoelastic properties in a sandwich glass composite

• Published in: Mechanics of time-dependent materials Vol. 25; no. 3; pp. 353 - 363
• Main Authors: Cao, Dongyang, Malakooti, Sadeq, Kulkarni, Vijay N., Ren, Yao, Lu, Hongbing
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.09.2021; Springer Nature B.V
• Subjects: Characterization and Evaluation of Materials; Classical Mechanics; Composite materials; Creep (materials); Design analysis; Engineering; Failure modes; Fiber composites; Glass fiber reinforced plastics; Loading rate; Mechanical properties; Modulus of elasticity; Nanoindentation; Nanoindenters; Polymer Sciences; Polyvinyl chloride; Resin transfer molding; Shear creep; Solid Mechanics; Strain rate; Stress distribution; Viscoelasticity; Berkovich tip; Viscoelastic nanoindentation; Core–skin interphase; Sandwich composite

Debonding at the core–skin interphase region is one of the primary failure modes in core sandwich composites under shear loads. As a result, the ability to characterize the mechanical properties at the interphase region between the composite skin and core is critical for design analysis. This work i...