1. What is an isotropic material? Give one example.
- Isotropic materials have qualities that remain constant when
evaluated in multiple orientations. Anisotropic materials have
different properties when tested in different orientations than
isotropic ones. Glass, polymers, and metals are examples of isotropic
materials. Isotropic means that anything has the same size or physical
attributes when measured in different directions. For example, paper,
like metal, is isotropic, meaning that its strength and stiffness are the
same when tested along different axes.
2. What is an anisotropic material? Give one example.
- Graphite (used in pencils), wood, and carbon fiber are examples of
anisotropic materials. An anisotropic material is one that has a
difference in a material attribute (chemical, thermal, or electrical)
across distinct portions of the material. Anisotropic materials have
qualities that differ when measured in different directions.
3. What is a transversely isotropic material? Give one example.
- A material is defined as transversely isotropic if its physical
characteristics are uniform about a direction that is normal to the
plane of isotropy. The properties of the material are similar in every
direction within this transverse plane because it contains infinite
planes of symmetry. For instance, some piezoelectric materials.