Engineering news for design engineers: standard revisions, investigation findings, notable projects and new methods. Every post is checked against its primary sources and says what it means for your calculations.
Industry Featured
NASA Armstrong tested its SWEET-15 composite truss-braced wing to failure at roughly 127% of design limit load. What bracing means for joints and margins.
Materials and methods
America Makes named 25 teams for JAQS-SQ Groups 2 and 3, a $10.5M effort to qualify LPBF and DED metal AM suppliers. What it means for buying printed parts.
Standards watch
ASTM F3125/F3125M-26 is the active structural bolt edition and RCSC 2025 adds Grade 144 bolts and drops the calibrated wrench. What to check in your joints.
Industry
Boeing says its 777-9 full-scale fatigue airframe has passed 63,000 of 120,000 planned flight cycles at about 160 a day. What the test proves and how to use it.
Standards watch
EN 1993-1-1:2022 supersedes the 2005 Eurocode 3 general rules. BSI withdraws the first generation on 30 March 2028. What changes for column buckling checks.
Materials and methods
Fraunhofer IWM links shot peening, deep rolling and burnishing of printed AlSi10Mg, 316L and Ti6Al4V to an FKM fatigue assessment. What it means for design.
Standards watch
ISO 965-1:2026 replaces the 2013 edition of the metric screw thread tolerance system, folds in Amendment 1:2021 and adds coated-thread clauses. What to check.
Failures and lessons
TSB Canada traced a PW150A compressor blade fracture to high-cycle fatigue at a 26 000 rpm resonance. Lessons on dwell time, tip clearance and cold-day stress.
Failures and lessons
TSB Canada found a 1991 freight wheel with oxides and voids up to 5.7 times the current limit grew subsurface fatigue cracks, shattered and derailed 18 cars.