[MOS] MECHANICS OF SOLIDS MODULE V DEFLECTIONS S3 KTU NOTES FOR KTU STUDENTS [SECOND YEAR]

MECHANICS OF SOLIDS 

MODULE V 

DEFLECTIONS

Introduction

• Calculation of deflections is an important part of structural analysis.

• Excessive beam deflection can be seen as a mode of failure.

1. Extensive glass breakage in tall buildings can be attributed to excessive deflections .

2. Large deflections in buildings are unsightly (and unnerving) and can cause cracks in ceilings and walls. 

3. Deflections are limited to prevent undesirable vibrations.

Beam Deflection

 The deflection curve of the longitudinal axis that
passes through the centroid of each cross-sectional
area of a beam is called the elastic curve.

 The supports that resist a force, such as a pin, can restrict
displacement.

 The supports that resist a moment,such as a fixed wall, can restrict rotation or slope as well as displacement.

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