How do expansion joints in large polyethylene sculptures prevent stress fractures?
Large polyethylene sculptures are popular in public art due to their durability and versatility. However, temperature changes and material expansion can cause stress fractures. Expansion joints are strategically placed gaps that allow the polyethylene to expand and contract without cracking. These joints absorb thermal movement, reducing internal stress. Properly designed expansion joints ensure the sculpture's longevity, maintaining structural integrity over time. This technique is essential for large-scale polymer art exposed to varying weather conditions.
