Abstract The design of orthotropic bridge decks (OBD) is driven by fatigue. Eurocode on fatigue steel structures – prEN 1993‐1‐9:2023 provides resistance (S‐N) curves for relevant details in OBD. These are to be used with the far field (nominal) stress. However, due complex geometry and loading OBD, nominal stress not well defined many details. In addition, cracks have been found practice OBD a...

Spot welding is used extensively in the automotive industry. The quality of an individual welding spot is a major concern due to the heavy reliance on their use in the manufacture of cars. The main parameters that control the quality of a welding spot are current, voltage, welding force, welding time, and the quality of the welding electrodes. The condition of the welding electrodes plays a maj...

A study investigating the effect of sheet surface condition on resistance spot welding (RSW) of aluminium has been carried out at the University of Warwick. This concentrates on two commercial automotive aluminium alloys; AA5754 and AA6111, used for structural and closure applications respectively. The results show the marked effect that surface condition can have on the RSW process. For AA5754...

ŠUSTR MICHAL, DOSTÁL PETR, ZAČAL JAROSLAV. 2016. The Acoustic Emission for Monitoring the Hardness of the Cold Metal Transfer Weld. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 64(2): 543–547. The article deals with the quality monitoring of the weld joint Aluzinc surface at the overlap point. The corrosion resistance layer research in the anaerobic fermenter (bioreac...

fungal diseases, chocolate spot (botrytis fabae sard) is the most destructive diseases of faba bean and causes considerable dramatic damage losses on faba bean yield worldwide. the levels of resistance to chocolate spot were evaluated in 35 faba bean cultivars and one susceptible check (ilb365) and local check (barkat) at the gorgan agricultural research station during the 2010 and 2011 croppin...

background and aims: to evaluate the effect of temperature on wheat streak mosaic virus (wsmv) resistance phenotype, through total protein, phenol, and peroxidase activity in bread wheat, a factorial experiment was conducted using adl-cross (resistant) and marvdasht (susceptible) cultivars. materials and methods: results showed that incubation at 32c changed the gene expression for resistance ...

In a small sample welding test space, and to achieve online prediction self-optimisation of process parameters for the resistance joint quality power lithium battery packs, this paper proposes model. The model combines chaos game optimisation algorithm (CGO) with multi-output least-squares support vector regression machine (MLSSVR), multi-objective parameter method based on particle swarm algor...