5.6 | Strain Energy in Deformed materials | Class 11 Physics New Book

Описание: In this Class 11 Physics (New Book) lecture, we explore the important concept of strain energy, which is the energy stored in a material when it is stretched, compressed, or twisted within its elastic limit. Understanding strain energy is essential for studying elasticity, stress–strain behavior, and the mechanical properties of solids.

This lesson provides a clear explanation of how strain energy is produced in a deformed body and how it is calculated mathematically and graphically.

In This Lecture, You Will Learn:

What strain energy is and why it is stored in a material

Difference between elastic energy and strain energy

Mathematical expression for strain energy in deformed solids

Strain energy calculation using:
• Work done against restoring force
• Stress–strain relationship

How strain energy is represented as the area under the stress–strain graph

Practical examples such as springs, bridges, cables, and metal wires

By the End of This Lesson, You Will Understand:

How work done on a wire or solid converts into stored elastic energy

How to compute strain energy using formulas and the graphical method

The importance of strain energy in engineering, design, and material science

How strain energy applies to Class 11 Physics numerical problems

Perfect For:

Class 11 Physics Students (Punjab Board – New Book)

Federal, Sindh, KPK, Balochistan, AJK Boards

O Level / A Level / IB Physics learners

MDCAT, ECAT, and engineering entry test preparation


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