Geology Geomechanics Unconfined Compressive Strength UCS Calculator
Actual intact-rock UCSaxial failure force/original specimen area, not structural pillar capacity or borehole failure model. Actual independently matched quantities/units required; not infer causal effect, clinical guidance or safe design.
Description
Unconfined compressive stress divides a qualifying failure force by original specimen area.
Unconfined compressive stress divides a qualifying failure force by original specimen area.1
Specimen preparation and failure classification precede the arithmetic ratio. Use this tool to calculate the stated observation or conditional model from supplied measurements.
When to use Geology Geomechanics Unconfined Compressive Strength UCS Calculator
Use this tool to calculate the stated observation or conditional model from supplied measurements. Establish the sample and coordinate basis, matching units, calibration source and applicable model assumptions.
How to use Geology Geomechanics Unconfined Compressive Strength UCS Calculator and understand its results
- Establish the sample and coordinate basis, matching units, calibration source and applicable model assumptions.
- Enter actualQualifiedAxialFailureForceNewtons, actualOriginalSpecimenAreaSquareMeters, using the field meanings and rules below, then run the tool.
- Read result.observedRatio. Interpret each field using the units, signs and evidence rules below.
- If input validation fails, correct the reported field and run again. Before applying a successful result, check the stated reference scope, units, assumptions and any retained unknown evidence.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| actualQualifiedAxialFailureForceNewtons | Actual qualified axial failure force newtons | number | Required |
| actualOriginalSpecimenAreaSquareMeters | Actual original specimen area square meters | number | Required |
Require nonnegative actualQualifiedAxialFailureForceNewtons and positive actualOriginalSpecimenAreaSquareMeters. Divide numerator by denominator without percent scaling. Values need not be integers and the tool does not require numerator≤denominator or clamp the result. Establish matching measurement scope and units independently. Newtons divided by square meters returns pascals, not a dimensionless ratio.
result=1×actualQualifiedAxialFailureForceNewtons/actualOriginalSpecimenAreaSquareMeters Apply the field units and exact ordering, boundary and evidence rules above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Structured result containing the calculation or selected reference fields below | object |
| result.observedRatio | Observed compressive stress in pascals | number |
{
"input": {
"actualQualifiedAxialFailureForceNewtons": 2,
"actualOriginalSpecimenAreaSquareMeters": 4
},
"output": {
"result": {
"observedRatio": 0.5
}
}
}Limitations and assumptions
Specimen preparation and failure classification precede the arithmetic ratio. Results depend on the independently established measurement basis and the exact model assumptions above.
Every listed input requires an explicit value. Unexpected fields, incorrect value types, nonfinite numbers and sparse numeric arrays fail validation; tool-specific bounds and alignment rules apply as described above. Extremely large inputs or outputs can also be rejected. An input error is distinct from a successful calculation that reports a false comparison or retains unknown evidence.
Alternative or Complementary methods
Use Geology Geomechanics Wellbore Stability Mud Weight Window Calculator to examine a related aspect: A wellbore mud-weight window belongs to an independently established mechanical analysis.
Use Geology Geomechanics Reservoir Compaction Calculator where its separate inputs and scope apply: Small-strain reservoir compaction relates thickness to calibrated compressibility and pressure depletion.
References
Similar or alternative tools
- Geology Geomechanics Wellbore Stability Mud Weight Window Calculator
A wellbore mud-weight window belongs to an independently established mechanical analysis.
- Geology Geomechanics Reservoir Compaction Calculator
Small-strain reservoir compaction relates thickness to calibrated compressibility and pressure depletion.