strength of material is for engineering.pptx

For engineering college. Strength of material subject.

1. KALYANI GOVERNMENT ENGINEERING COLLEGE Name: mangaldeep mitra Roll: 10200723020 Subject: strength of materials Subject code: pc_me403 Sem:3 rd sem

2. Title topic page no. Stress strain diagram for brittle material- 01 Stress strain diagram for plastic material- 02 Stress strain diagram for plastic material- 03 Various points of this engineering stress strain diagram- 04 Important keywords- 05-06 Toughness- 07 Acknowledgement - 08

3. Stress strain diagram for brittle material:

4. Stress strain diagram for ductile material:

5. Stress strain diagram for plastic material:

6. Various points of this engineering stress strain diagram

7. Important keywords Elasticity - It is a mechanical property of a material by which the materials tries to regain its original shape and size after being deformed when force is applied. Ductility - It is a mechanical property of material by which a thick wire can be drawn into a thin wire. Malleability - It is a mechanical property of a material by which a thick sheet can be pressed into a thin sheet Modulus of Elasticity - It is also known as elastic modulus ,is a measure of how much a material resists deformation when a force is applied. Proportional limit - It is the highest stress at which a material deforms elastically in direct proportional to the applied stress.

8. Elastic limit -The elastic limit of a material is maximum stress it can withstand before it permanently deforms Yielding - In mechanical engineering “yielding” refers to the point at which a material begins to deform permanently under applied stress, transitioning form elastic deformation to its original shape once the stress is removed. Strength of material – Strength of material is the maximum amount of stress that a material can withstand. Failure of structural material - A failure of structural material refers to when a material used in a structure, like steel, concrete, or wood, can no longer withstand the applied load due to exceeding its strength limits leading to creaking deformation, or concept breakage thus corresponding the structural integrity of the building or component

9. Toughness – Toughness is mechanical property which resist impact force. Toughness is amount of energy required to failure point Energy/Volume=Area=∫ σ d∈ Toughness=Area under stress-strain diagram*volume of the material

10. Acknowledgement I would like to thank dr.santanu das sir for giving me this opportunity to learn about various topics on strength of material. This assignment helped me to gain knowledge that will be helpful a lot in the future.

11. Thank you