For solar trackers, wind hardware and mounting structures, the load case is not the hard part — the environment is. Cyclic wind loading plus coastal or industrial atmosphere is what ends service life.
Fight corrosion first
- Hot-dip galvanising or suitable marine coatings for exposed structural parts.
- Stainless or duplex grades for fasteners, where mixed-metal contact is unavoidable.
- Seal and drain designs so water does not sit in a joint.
Respect fatigue
Fatigue failures start at stress concentrators — sharp corners, thread roots, weld transitions. Generous radii and controlled surface finish at those points add years of life for very little cost.
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