Experimental Study and Numerical Simulation of the Tensile Properties of Corroded Bolt-Sphere Joints

In order to study the mechanical behavior of corroded bolt-sphere joints and predict the bearing capacity of the joints in a corrosive environment, bolt-sphere-connection and bolt-sphere-joint specimens with differing degrees of corrosion were obtained by accelerated corrosion. The tensile properties of the corroded bolt-sphere connections and the bolt-sphere joints with members were tested, respectively, and the effects of different degrees of corrosion on the tensile properties of bolted spherical joints were studied. Finally, a numerical simulation of the corroded bolt-sphere connections and bolt-sphere joints with members was carried out, and the main factors affecting the tensile performance of the corroded bolt-sphere joints was clarified; the degradation law of the tensile properties of the bolted sphere joints with service time was established.

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