Question

In a mechanical model of a viscoelastic material, showing both viscosity of liquid state and elasticity of solid-state combined in series is termed as:

• A. Maxwell Element
• B. Creep Element
• C. Voight Element
• D. Retardation Element

Answer 1

The Correct Option is A

The question at hand is about identifying the mechanical model used to describe a viscoelastic material that showcases both the viscosity of a liquid and the elasticity of a solid when combined in series. The options provided are:

1. Maxwell Element
2. Creep Element
3. Voight Element
4. Retardation Element

Let's analyze these options to determine the correct one.

1. Maxwell Element: The Maxwell model consists of a purely viscous damper and a purely elastic spring connected in series. In this model, the total strain is the sum of the strains in the spring and the damper. It is used to describe viscoelastic materials that exhibit behaviors of both liquids (viscous flow) and solids (elastic deformation). Therefore, this is the correct option.

2. Creep Element: Creep is a time-dependent permanent deformation under a sustained load. It typically describes how materials behave under long-term stress but does not combine viscosity and elasticity in series in the standard terminology of mechanical models.

3. Voight Element: Also known as the Kelvin-Voigt model, it consists of a spring and a dashpot in parallel rather than in series. This model is more suited to describe materials that exhibit both instantaneous elastic and time-dependent viscous response. It is not the same as the Maxwell model.

4. Retardation Element: This is not a commonly recognized term in describing viscoelastic models in the context presented here.

Based on the explanations above, the correct answer is the Maxwell Element, as it accurately describes a series combination of viscosity and elasticity.