Fatigue characterization and crack propagation mechanism of self-piercing riveted joints in titanium plates

The fatigue characterization and failure modes of self-piercing riveted joints in titanium plates were studied experimentally. The self-piercing riveting (SPR) process was optimised to improve the forming quality, mechanical property and failure behaviour of titanium joints through the comparative trials. The crack propagation mechanisms and fretting behaviours are quite different for different failure modes and analysed in detail from macro-...