How does thermal expansion affect joints in multi-stone animal sculptures?
Thermal expansion significantly impacts the structural integrity of multi-stone animal sculptures, particularly at the joints where different stones meet. When temperatures rise, each stone expands at a unique rate depending on its mineral composition, creating stress at the connection points. Over time, this repeated expansion and contraction can lead to cracks, misalignment, or even complete joint failure. Sculptors often use flexible adhesives or strategic joint designs to accommodate these movements. Understanding these effects is crucial for preserving such artworks in varying climates. Proper material selection and installation techniques can minimize damage caused by thermal expansion.
