6533b7d4fe1ef96bd1262f74

RESEARCH PRODUCT

MULTI AXIAL TESTING OF ADHESIVELY BONDEDJOINTS OF FIBER REINFORCED THERMOPLASTIC POLYMERS

Nans ArgoudJérôme RousseauBenoit PiezelStéphane Fontaine

subject

[SPI]Engineering Sciences [physics]Thermoplastic resin compositesFlexible adhesiveAdhesively[SPI] Engineering Sciences [physics]Multi-axial loading

description

International audience; In order to predict the mechanical behaviorof adhesively bonded joints, it is necessary to develop robust numerical models.This robustness is only reached if an extensive experimental database with tensile, shear and complex combined peel and shear loads can beestablished. The purpose of this study is to present a multi axialdevice for testing adhesively bonded joints, using KS2-type specimens traditionally utilized for spot-weld characterization. The tests were conducted on a glass fiber reinforced thermoplastic polymer(PA6-6) composite adhesively bonded with a flexible polyurethane adhesive. This adhesive/substrate combination allowsshort process times and good performances. Thisexperimentalstudyinvestigates the effects of axial and shear load, loading speed, temperature and adhesive thickness on the mechanical properties of the joints which are compared in terms of stiffness and ultimate strength. Results show that the strength of the assemblies largely depends on the load orientation, the joint thickness, the loading speed and also thetest temperature.

yearjournalcountryeditionlanguage
2015-07-19
https://hal.science/hal-02902704