Description
Calculate compression-positive engineering strain from supplied heights.
Fabrication records distinguish supplied design versions, geometry, image clocks and material lots. Porosity depends on an envelope-volume definition, compression-positive strain differs from extension-positive strain, and nominal circular nozzle area does not determine printed line width. These scalar terms preserve supplied measurement assumptions.
Calculate compression-positive engineering strain from supplied heights.
When to use this tool
Use Scaffold Compression Strain Point when you already have referenceHeight, compressedHeight and need to calculate compression-positive engineering strain from supplied heights.
How to use the tool and how it works
- Enter referenceHeight, compressedHeight. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read compressionPositiveEngineeringStrain. Use the output convention below.
Require referenceHeight>0 and compressedHeight>=0; return (referenceHeight-compressedHeight)/referenceHeight.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| referenceHeight | Reference Height | Required. Finite number; strictly above 0. |
| compressedHeight | Compressed Height | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| compressionPositiveEngineeringStrain | (referenceHeight-compressedHeight)/referenceHeight; negative when the supplied height increases. | Required. Finite number. |
{
"input": {
"referenceHeight": 10,
"compressedHeight": 8
},
"output": {
"compressionPositiveEngineeringStrain": 0.2
}
}Limitations and assumptions
- Extension beyond reference height gives negative compression strain. This is an engineering length ratio, not true strain, stress, a constitutive fit or a suitability assessment.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Inspect calibrated geometry, controlled design/material records and the complete process model. Use appropriate physical and biological assessment when evaluating a real construct, device or fabrication condition.
References
Similar or alternative tools
- Scaffold Axis Shrinkage Ratio
Calculate retained-length and shrinkage fractions from supplied lengths.
- Biomaterial Fracture Extension Ratio
Calculate a supplied fracture extension/gauge-length ratio.