Dheya Engineering Technologies Interview Questions and Answers

Stress is the force per unit area, Poisson's ratio is the ratio of lateral to axial strain, and endurance limit is the maximum stress a material can withstand without breaking after a certain number of cycles.

• Stress is the measure of the internal forces acting within a material, which can cause deformation or failure.

• Poisson's ratio is a measure of a material's ability to deform in response to an applied force, and is ...read more

Stiffness varies with material, geometry, and loading conditions.

• Stiffness is the ability of a material to resist deformation under load.

• Materials with higher Young's modulus have higher stiffness.

• Stiffness also depends on the geometry of the structure.

• For example, a thicker beam will be stiffer than a thinner beam.

• Loading conditions such as the magnitude and direction of the load also affect stiffness.

• For instance, a ...read more

Deflection of a material/component can be determined by analyzing its stress and strain under a load.

• Calculate the stress and strain of the material/component

• Use the material's Young's modulus to determine its stiffness

• Apply the load and calculate the resulting deflection using the stiffness and stress/strain

• Consider any external factors that may affect the deflection, such as temperature or moisture

• Use simulation soft...read more

Young's modulus of steel is around 200 GPa.

• Young's modulus is a measure of the stiffness of a material.

• It is defined as the ratio of stress to strain within the elastic limit.

• Steel has a high Young's modulus, making it a strong and rigid material.

• The value of Young's modulus for steel can vary depending on the specific type and grade of steel.

• For example, the Young's modulus of mild steel is around 200 GPa, while for h...read more