Timber Notch Capacity Calculator
Nominal rectangular net shear after independently established notch reduction, no fracture stress or unverified timber-notch code factor. Caller independently establishes units, regime, calibration and applicability; this does not establish design-code compliance, authenticity, operational safety, treatment efficacy or a validated forecast.
Description
A reduced rectangular timber section gives a conditional nominal shear capacity.
A reduced rectangular timber section gives a conditional nominal shear capacity.1
Notch effects and the adopted reduction factor require independent design justification. Use this tool to calculate timber Notch Capacity from the supplied measurements and assumptions.
When to use Timber Notch Capacity Calculator
Use this tool to calculate timber Notch Capacity from the supplied measurements and assumptions. Establish the SI units or caller unit basis, load signs, measurement interval, model conditions and independently chosen coefficients or references.
How to use Timber Notch Capacity Calculator and understand its results
- Establish the SI units or caller unit basis, load signs, measurement interval, model conditions and independently chosen coefficients or references.
- Enter timberGrossDepthM, observedNotchDepthM, timberWidthM, callerMatchedNetSectionShearPa, callerIndependentNotchReductionFraction, using the field meanings and rules below, then run the tool.
- Read callerReducedTimberNetShearN. Interpret the fields using their units, signs and evidence conventions below.
- If input validation fails, correct the reported field and run again. Before applying the result, check reference scope, model assumptions and any missing evidence or placeholder values.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| timberGrossDepthM | Timber gross depth m | number | Required |
| observedNotchDepthM | Observed notch depth m | number | Required |
| timberWidthM | Timber width m | number | Required |
| callerMatchedNetSectionShearPa | Caller matched net section shear pa | number | Required |
| callerIndependentNotchReductionFraction | Caller independent notch reduction fraction | number | Required |
Enter positive width and total depth, a nonnegative notch depth smaller than total depth, positive allowable shear stress and reduction fraction in [0,1]. Compute two-thirds width×remainingDepth×stress×reduction in N. No detailed notch stress concentration or design-code check is supplied.
capacityN=(2/3)×widthM×(depthM−notchM)×allowableShearPa×reduction Use the exact units, boundary rules, ordering and missing-evidence conventions above.
| Output field | Meaning | Value type |
|---|---|---|
| callerReducedTimberNetShearN | Caller Reduced Timber Net Shear N; follow the units, sign, ordering and evidence convention stated above | number |
{
"input": {
"timberGrossDepthM": 0.4,
"observedNotchDepthM": 0.1,
"timberWidthM": 0.2,
"callerMatchedNetSectionShearPa": 100,
"callerIndependentNotchReductionFraction": 0.5
},
"output": {
"callerReducedTimberNetShearN": 2.0000000000000004
}
}Limitations and assumptions
Notch effects and the adopted reduction factor require independent design justification. Interpretation depends on the units, sampling scope and exact model described above.
All listed fields require explicit values. Unexpected fields, incorrect types, nonfinite numbers and sparse evidence arrays fail validation; the specific bounds and alignment requirements are stated above. Extremely large inputs or outputs can also be rejected. An input error is distinct from a successful result reporting false, no matches or missing evidence.
Alternative or Complementary methods
Use RC Shear Capacity Calculator for this related task: A reinforced-concrete shear model combines a supplied concrete contribution with a reinforcement contribution.
Use RC Beam Moment Capacity Calculator when its separate inputs and assumptions fit the question: A yielded-steel rectangular-block model estimates nominal beam moment resistance.
References
-
Timber Notch Capacity Calculator — tool.io
Similar or alternative tools
- RC Shear Capacity Calculator
A reinforced-concrete shear model combines a supplied concrete contribution with a reinforcement contribution.
- RC Beam Moment Capacity Calculator
A yielded-steel rectangular-block model estimates nominal beam moment resistance.