strain energy theory

Strain energy theory explains how materials store energy when they are deformed under loads. When a material stretches, compresses, or bends, it experiences internal forces that cause deformation. The energy used to produce this deformation is called strain energy. In structures like beams or plates, understanding how this energy is stored helps engineers predict how materials will respond under different loads, ensuring safety and stability. Essentially, strain energy is the "fuel" that the material absorbs during deformation, and analyzing it helps in designing structures that can withstand various forces without failure.