GATE (TF) Textile 2018 Question Paper Solution | GATE/2018/TF/06

Question 06 (Textile Technology & Fibre Science)

Which one of the fibres, having stress-strain curves as shown in the figure, is the most suitable for making mountaineering ropes ?

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Frequently Asked Questions | FAQs

What is stress and strain curve concept?

The stress and strain curve is a graphical representation of the relationship between stress and strain for a particular material. It is a fundamental concept in materials science and engineering and is used to understand how materials behave under different conditions of load and deformation.
Stress refers to the force per unit area applied to a material, while strain refers to the resulting deformation or change in shape of the material. The stress and strain curve shows how a material responds to stress by deforming or changing its shape, and how it behaves as the stress increases.
The stress and strain curve typically consists of several distinct regions:

1)Elastic Region: The initial region of the curve is the elastic region, where the material behaves elastically and deforms proportionally to the applied stress. In this region, the material will return to its original shape when the stress is removed.

2)Yield Point: The yield point is the point where the material begins to deform plastically, meaning it will not return to its original shape when the stress is removed.

3)Plastic Region: The plastic region is where the material deforms permanently and the strain increases more quickly than the stress.

4)Necking Region: The necking region is where the material begins to narrow and the cross-sectional area decreases.

5)Fracture Point: The fracture point is where the material breaks due to excessive stress.

The stress and strain curve is a useful tool for understanding the mechanical properties of materials and for designing materials for specific applications. By analyzing the curve, engineers can determine the strength, ductility, and toughness of a material, and use this information to select the most appropriate material for a given application.

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