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Bursting Strength Formula:
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Bursting Strength (BF) is a measure of the ability of corrugated cardboard or paperboard to resist rupture when subjected to hydraulic pressure. It is calculated as the ratio of hydraulic pressure at burst to the material's grammage.
The calculator uses the Bursting Strength formula:
Where:
Explanation: The equation calculates the bursting strength by dividing the hydraulic pressure required to burst the material by its grammage, providing a normalized measure of strength relative to material weight.
Details: Bursting strength is crucial for quality control in packaging materials, ensuring boxes and containers can withstand internal and external pressures during handling, stacking, and transportation without failure.
Tips: Enter hydraulic pressure in psi, area in square inches, and grammage in g/m². All values must be positive numbers greater than zero for accurate calculation.
Q1: What is the typical bursting strength range for corrugated boxes?
A: Typical values range from 100-300 psi/(g/m²) depending on the corrugated board type and quality.
Q2: How does grammage affect bursting strength?
A: Higher grammage generally indicates thicker/heavier material, which typically has higher bursting strength, but the BF calculation normalizes this relationship.
Q3: What testing standards are used for bursting strength?
A: Common standards include ISO 2758 for paper and ASTM D774 for textiles and related materials.
Q4: Can this calculator be used for other materials besides corrugated boxes?
A: Yes, the formula applies to various paper-based materials, textiles, and other sheet materials where bursting strength is measured.
Q5: How often should bursting strength be tested in quality control?
A: Regular testing is recommended, typically with each production batch or according to specific industry quality control protocols.