Catalogo consumabili 2012

42
Cross reference
Fracture energy conversions
Resilience test (Test on a CHARPY tup) or bending test on notched double resting point specimen
It consists in measuring, by the CHARPY impact test (pendulum striking a test specimen), the energy necessary to break a
square bar with 1 cm2 cross-section and a central notch. The unit of impact represents the resilience. The resilience strength
is thus J/cm2.
Depending on the shape and depth of the notch, one should differentiate between:
The UF resilience test bar
• U notch, depth 5 mm
• Remaining cross section: 0.5 cm2
• Symbol: KCU
The results are usually expressed, with respect to the cross-section unit: this is the resilience itself: KCU in J/cm2 or daJ/cm2
CHARPY V resilience test
• V notch, depth: 2 mm
• Remaining cross-section: 0.8 cm2
• Symbol KCV expressed in J/cm2 or daJ/cm2
The results are usually expressed in units of energy, symbol KV in J or in daJ.
MESNAGER resilience test bar
• U notch, depth: 2 mm
• Remaining cross-section: 0.8 cm2
• Symbol KCM expressed in J/cm2 or daJ/cm2
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