Definition

Noun: - A coefficient of elasticity applicable to the stretching of a wire: Young's modulus is a measure of the stiffness of a solid material. It defines the relationship between stress (force per unit area) and strain (proportional deformation) in a material within its elastic limit, specifically for tensile or compressive stress.

Usage

Young's modulus is a fundamental property in materials science and engineering used to describe a material's elastic behavior. - It is used to calculate the deformation of a material under load. - It allows engineers to select appropriate materials for structures that must withstand forces without permanent deformation. - It is a key parameter in Hooke's Law for elastic materials.

Examples

• Noun:
  • Steel has a high Young's modulus, indicating its great stiffness.
  • The engineer calculated the beam's deflection using the material's Young's modulus.
  • Comparing the Young's modulus of rubber and diamond shows a vast difference in elasticity.

Advanced Usage

• "To determine/measure the Young's modulus": To find the value of this property through experimentation, such as a tensile test.
  • The lab experiment involved determining the Young's modulus of the aluminum alloy.
• "A material with a low/high Young's modulus": Describing a material's relative stiffness.
  • Foam has a very low Young's modulus and deforms easily under small loads.

Variants and Related Words

• Modulus of Elasticity (n): A more general term for Young's modulus; the ratio of stress to strain.
• Tensile Modulus (n): A synonym for Young's modulus, specifically under tensile stress.
• Elastic Modulus (n): A broader category that includes Young's modulus, Shear modulus, and Bulk modulus.

Synonyms

• Stiffness Constant: A descriptive synonym emphasizing the property it quantifies.
• Elastic Constant: A general term for constants describing elastic behavior.

Related Phrases

• "Within the elastic limit": A condition where Young's modulus is valid, meaning the material will return to its original shape after the force is removed.
  • Hooke's Law and Young's modulus apply only when the material is stressed within its elastic limit.

Noun

1. a coefficient of elasticity applicable to the stretching of a wire