Q66: Ideal elastic behaviour of a material can be explained by - Engineering Properties and Quality of Biomaterials - Processing and Food Engineering- ICAR JRF/SRF 2024 | Agrigyan

• Rheological Models of Deformable Materials:
• Hookean Body: An ideal linear elastic solid obeying Hooke's law, where stress is directly proportional to strain ($\sigma = E \cdot \epsilon$), recovering immediately upon release of stress.
• Newtonian Liquid: Ideal viscous fluid where shear stress is proportional to shear rate.
• St. Venant Body: Ideal plastic material that yields once a critical threshold stress is reached.
• Conclusion: Ideal elastic behaviour is explained by Hookean body (Option 3).

Correct option: (3) Hookean body