Materials that can be compressed or extended without breaking
These materials are called "elastic materials.".
Rubber bands, bungee cords, and elastic waistbands in clothing are examples of elastic materials. These materials can deform under stress and return to their original shape once the stress is removed due to their elastic properties.
Elastic bands are typically made from rubber or latex materials, which give them their stretchy properties. Some elastic bands may also contain synthetic materials like polyester or nylon for added durability.
All materials are elastic to a point. An elastic material is one that returns to its original size and shape when the load that is causing it to bend or stretch, is removed. At some point all materials will exceed their "elastic limit". Mild steel used for building structures is quite elastic if not over loaded. Rubber such as a rubber band is extremely elastic but it also has an elastic limit, and an ultimate strength. Glass is not very elastic and is considered brittle.
Elastic materials bounce back, while a non-elastic material will remain deformed if you poke it.
Hooke's law applies to elastic materials, which means that the material will return to its original shape when the deforming force is removed. Inelastic materials do not follow Hooke's law as they do not exhibit linear elasticity.
State that a ship's structure and machinery are constructed largely of materials which are elastic?
Rubber Band and spring is an examples of elasticity materials
Yes, rigidity is a factor in elastic energy. The amount of elastic energy stored in a material is directly related to its rigidity or stiffness. Higher rigidity materials can store more elastic energy when deformed compared to less rigid materials.
The relationship between stiffness and elastic modulus in materials is that the elastic modulus is a measure of a material's stiffness. A higher elastic modulus indicates a stiffer material, while a lower elastic modulus indicates a more flexible material. In other words, stiffness and elastic modulus are directly related in that a higher elastic modulus corresponds to a higher stiffness in a material.
Viscoelasticity is the property of materials that are shown to be both viscous and elastic. Viscous materials are for example honey that resist shear flow and strain when stress is applied. Elastic materials strain but then quickly return to their original state. A viscoelastic material simply have elements of both.
Elastic energy can be sourced from materials that can deform and return to their original shape, such as rubber bands, springs, and elastic cords. When these materials are stretched or compressed, they store potential energy that can be released when the deforming force is removed.