Metal sculptures, while durable, are prone to several structural failures that can compromise their integrity and aesthetic appeal. The most common issues include:

1. Cracking and Fracturing: Often caused by stress concentrations or poor welding techniques. To prevent this, artists should use high-quality materials and ensure proper welding joints.

2. Corrosion and Rust: Exposure to moisture and harsh weather accelerates oxidation. Applying protective coatings like powder coating or regular waxing can shield the metal.

3. Fatigue Failure: Repeated stress from wind or movement weakens the structure over time. Reinforcing load-bearing points and using flexible materials can mitigate this risk.

4. Thermal Expansion: Temperature fluctuations cause metal to expand and contract, leading to warping. Designing with expansion joints or selecting alloys with low thermal sensitivity helps.

5. Poor Foundation: An unstable base can cause tilting or collapse. Ensuring a sturdy, level foundation tailored to the sculpture’s weight and size is critical.

By addressing these issues during design and maintenance, artists and collectors can preserve metal sculptures for decades. Regular inspections and proactive care are key to avoiding costly repairs.