What is isotropic material?
Isotropic materials are materials whose properties remain the same when tested in different directions. Common isotropic materials include glass, plastics, and metals. On the other hand, fiber-reinforced materials such as composites and natural materials such as wood tend to display anisotropic properties.
Is glass anisotropic?
Glass and metals are examples of isotropic materials. Common anisotropic materials include wood, because its material properties are different parallel and perpendicular to the grain, and layered rocks such as slate.
What is anisotropic elasticity?
1 Introduction. Elastic anisotropy occurs when the relationship between stress and strain in a material depends on its orientation. Rotate an applied stress, and the strain response will differ. Seismic anisotropy is how elastic anisotropy influences propagating seismic waves.
What is the theory of elasticity?
The theory of elasticity deals with isotropic materials subjected to elastic stresses, strains, and displacements. In engineering, the elasticity behavior of a material is characterized by the tensile modulus of elasticity and the elastic limit.
What is the meaning of elasticity?
Elasticity is a measure of a variable’s sensitivity to a change in another variable, most commonly this sensitivity is the change in price relative to changes in other factors. It is predominantly used to assess the change in consumer demand as a result of a change in a good or service’s price.
What are elastic materials?
1 Introduction. Elastomers are elastic materials that are characterized by large strain, high capability to recover the initial shape, nonlinear stress-strain curves and strain hardening [1–5]. Elastomers can be compressed and due to their excellent elasticity retain the original shape.
What is a deformation?
1 : alteration of form or shape also : the product of such alteration. 2 : the action of deforming : the state of being deformed. 3 : change for the worse.
What is creep time?
Creep is time-dependent deformation under constant stress. It may occur at relatively moderate temperatures. For ceramics with low-temperature ductility, creep may occur at ~0.5 Tm or even at lower temperatures. Creep generally is a function of the stress applied, the time of load duration and the temperature.
What is creep in RCC?
Inelastic deformations increase with time as the concrete experiences a sustained load. This inelastic deformation, also known as creep, increases at a decreasing rate during the loading period.
What is creep PDF?
Creep. • It is a time- dependent deformation under a. certain applied load. • Generally occurs at high temperature. (thermal creep), but can also happen at room.