Source: https://guthlabs.ai/docs/instrument-workflows/structural-bench/

instrument chain / verified-workflow-definition

# Beam & Column Structural Bench

Section to deflection to failure margin.

Status: **observed**Lifecycle: **verified-workflow-definition**

## Goal

Section to deflection to failure margin.

## Instrument chain

- 01

**[Moment of Inertia / Section Properties Calculator](<https://guthlabs.ai/docs/instruments/moment-of-inertia-section-properties-calculator/>)**

I,S,r

VERIFIED

- 02

**[Composite Section Builder](<https://guthlabs.ai/docs/instruments/composite-section-builder/>)**

built-up sections

VERIFIED

- 03

**[Parallel Axis Theorem Calculator](<https://guthlabs.ai/docs/instruments/parallel-axis-theorem-calculator/>)**

transfers

VERIFIED

- 04

**[Beam Deflection — Cantilever, Point Load at Free End](<https://guthlabs.ai/docs/instruments/beam-deflection-cantilever-point-load-at-free-end/>)**

case

VERIFIED

- 05

**[Beam Deflection — Cantilever, UDL](<https://guthlabs.ai/docs/instruments/beam-deflection-cantilever-udl/>)**

case

VERIFIED

- 06

**[Beam Deflection — Fixed-Fixed, Point/UDL](<https://guthlabs.ai/docs/instruments/beam-deflection-fixed-fixed-point-udl/>)**

case

VERIFIED

- 07

**[Beam Deflection — Propped Cantilever](<https://guthlabs.ai/docs/instruments/beam-deflection-propped-cantilever/>)**

case

VERIFIED

- 08

**[Column Buckling — Euler Critical Load](<https://guthlabs.ai/docs/instruments/column-buckling-euler-critical-load/>)**

slender columns

VERIFIED

- 09

**[Johnson Parabolic Formula (Intermediate Columns)](<https://guthlabs.ai/docs/instruments/johnson-parabolic-formula-intermediate-columns/>)**

intermediate columns

VERIFIED

- 10

**[Axial Stress & Strain Calculator](<https://guthlabs.ai/docs/instruments/axial-stress-strain-calculator/>)**

axial

VERIFIED

- 11

**[Von Mises / Tresca Failure Criteria Checker](<https://guthlabs.ai/docs/instruments/von-mises-tresca-failure-criteria-checker/>)**

failure

VERIFIED

- 12

**[Thermal Stress Calculator](<https://guthlabs.ai/docs/instruments/thermal-stress-calculator/>)**

thermal loads

VERIFIED

## Handoffs and cross-checks

Section I feeds every beam case; slenderness ratio routes Euler vs Johnson; stresses meet at von Mises.

## PointGuard stance

Route by slenderness against the critical ratio — Euler beyond, Johnson below; check BOTH von Mises and Tresca (Tresca governs conservatively).

## Sources and evidence

These pointers bind the page to evidence. They do not grant authority or collapse verification into deployment.

- `INSTRUMENT_COMBOS.json`

- `VERIFIED_LEDGER.json`