Absorbing energy and storing energy

What is energy absorption?

Energy absorption refers to how matter assimilates energy, primarily from electromagnetic radiation. This leads to physical and chemical transformations within the substance, such as changes in vibrational and rotational modes. When electromagnetic radiation interacts with matter, it induces transitions in molecular energy levels.

Why is energy absorption important?

A clear understanding of energy absorption is essential for various applications, from photosynthesis in chlorophyll to heating materials like green glass or rubber under infrared light. What is Energy Absorption? Energy absorption refers to how matter assimilates energy, primarily from electromagnetic radiation.

What is an example of energy absorption?

Energy absorption is the process by which objects capture and convert different energy forms. For example, solar radiation transforms into thermal energy. This concept affects how plants use sunlight and how materials like metal and water absorb and re-radiate energy, impacting environmental changes. What Are the Different Types of Energy?

What is energy absorption in structural materials?

Energy absorption in structural materials is manifested through various properties. These include internal damping, which helps control vibrations and fatigue, and fracture toughness, which measures the energy required for crack growth and fracture.

What is the purpose of energy absorbing structures?

The purpose of energy-absorbing structures is to dissipate input energy in a controllable manner or at a predetermined rate. This is different from traditional considerations on stiffness, strength, or stability of structures.

How is energy absorption calculated?

The energy absorption is calculated at specific strain rates, such as 0.50, 0.08, and 0.10 for different references. Energy absorption increases with the increase in strain rate of loading and density of the metallic foams.