Section 5.8-5.10 (Elasto dynamics)

CLASSIFICATION OF IMPACT PHENOMENON

 

Previous: Problem 5.42

 

Low Velocity

High Velocity

Extent of Deformation

G lobal

Local

Modal Response

Low Frequency

High Frequency

Loading/Response time

Milli Sec- Seconds

Sub milli to micro seconds

Strains

0.5-10 %

> 60%

Strain Rates

Pressures

Order of

10 –100

Failure Mode

Large Plastic Flow

Material Separation

 Next:  Types of Impact Problems

 

 

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