A tension-leg platform is connected to a template on the seabed by a series of steel tethers and risers. A specialist company has fitted the largest risers with electronic sensors to monitor their movement. The boxes are made of anodised aluminium alloy and strapped directly to the outside of steel risers using AISI 316 stainless steel bands. After a few weeks, the sensors ceased to function one by one. Provide some plausible theories as to why they failed and explain the mechanisms involved.

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Axial Load

When a bar of the uniform cross-section is acted by a load, such that the load acts along the longitudinal axis of the bar, such kinds of loadings are known as axial loadings. In general terms, a load is an external force acting on a component. An axial load acts perpendicular to the geometric cross-section of the component. Based on the direction of the application of the load, an axial load can be tensile or compressive. The analysis of bodies under the action of axial loads is generally studied under the branch of mechanics, known as statics.