Bending energy is a research area in the field of materials science and mechanics that focuses on studying the energy required to bend or deform a material. It is an important aspect in understanding the mechanical properties of materials, as it provides insight into how materials respond to external forces and loads. Researchers in this area often study the relationship between bending energy and material properties such as elasticity, strength, and flexibility. Bending energy is also used in various applications, including the design and control of structures and devices that experience bending or flexing.