Page 121 - Template Tesis UTM v2.0
P. 121
= ( ) (3.9)
−2
= ∫ ( ) (3.10)
0
( ) −2
̇ ( ) = = ( ) (3.11)
Where ;
- Stress
- Strain
̇ - Strain-rate
- Cross-sectional area of the bar
- Cross-sectional area of the specimen
- Young’s modulus of the bar
- Length of the specimen
- Axial strain of the transmitted pulse
- Axial strain of the reflected pulse
- Wave velocity of the bar
Fundamental wave velocity of the bar can be determined using Equation 3.12.
= √ (3.12)
Where ;
- Wave velocity of the bar
- Young’s modulus of the bars
- Density of the bars
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