3D PLM: Keep Structural Analysis Linked to the Design Revision — working record
Yenra | October 4, 2026
https://yenra.com/making/plm.html

Purpose: Trace an analysis conclusion to CAD revision, material assumptions, loads, constraints and the physical test configuration.

Instructions: Make a working copy. Fill the fields below with actual evidence and units. Record unavailable information as unknown, give it an owner, and resolve it before using the record for acceptance. Keep raw evidence by reference. Use the approved method, equipment limits and acceptance rules for your application. This blank record does not establish qualification.

1. Engineering question, selected output, acceptance rule and decision owner
   Response / evidence reference: ______________________________

2. CAD/assembly revisions, baseline and candidate change identifiers
   Response / evidence reference: ______________________________

3. Material model, property sources, condition and temperature
   Response / evidence reference: ______________________________

4. Loads, units, constraints, contacts and physical justification
   Response / evidence reference: ______________________________

5. Simplifications, software version, run ID, input files and solver logs
   Response / evidence reference: ______________________________

6. Mesh study, output location, values and stated comparison denominator
   Response / evidence reference: ______________________________

7. Test specimen revision, fixture, method, uncertainty and raw measurements
   Response / evidence reference: ______________________________

8. Discrepancies, affected conclusions, approval scope and release record
   Response / evidence reference: ______________________________

Teaching example (fictional; not acceptance criteria):
Fictional enclosure comparison A defined displacement is 2.00 mm on one mesh and 2.02 mm on a refined mesh. The change relative to 2.00 mm is 1%. A matched physical test measures 2.20 mm, so the refined model differs by (2.20 − 2.02) / 2.20 × 100 = 8.18% relative to the test. Neither percentage is a universal acceptance threshold. Investigate measurement uncertainty, fixtures, material and model assumptions before deciding whether the result supports the intended use.

Primary source context (consult for applicable method and scope):
September 2005 ThinkPad Z60 announcement
https://www.3ds.com/newsroom/press-releases/catia-v5-brings-faster-time-market-and-cutting-edge-analysis-capabilities-thinkpad-z60-notebook-design
Ansys Mechanical 2024 R2 convergence documentation
https://ansyshelp.ansys.com/public/Views/Secured/corp/v242/en/wb_sim/ds_Convergence.html

Review outcome: accepted / held / further evidence needed
Reviewer and date: __________________
Open actions, owner and due date: __________________