In eddy current non-destructive testing of a multi-layered riveted structure, rotating current excitation, generated by orthogonal coils, is advantageous in providing sensitivity to defects of all orientations. However, when used with linear array sensors, the exciting magnetic flux density (Bx) of the orthogonal coils is not uniform over the sensor region, resulting in an output signal magnitu...

Abstract The load-bearing capacities of (i) self-piercing-riveted, (ii) adhesive-bonded and (iii) hybrid riv-bonded lap joints commercial 1.5-mm-thick EN AW-6016-T4 sheets were compared under both quasi-static cyclic shear-tensile loads. heat-treated to cure the adhesive peak-age aluminum alloy. joint quality/integrity was assessed based on characteristic cross-sectional features hardness maps....

Two new Chinese species of the leafhopper genus Onukigallia, Onukigallia neoonukiisp. n. from Sichuan and Guangdong Provinces, and Onukigallia tumidasp. n. from Hubei and Hunan Provinces are described and illustrated. A key and an updated checklist with distributions of Onukigallia species are provided.