Lead Structural Analysis Engineer at Turkish Aerospace Industries. Eight years substantiating metallic and composite aerospace primary structure — GFEM-driven sizing, DaDT allowables, certification stress reporting.https://kuskira.com/https://kuskira.com/blog/hello-world/https://kuskira.com/blog/hello-world/A short note on starting over with a simpler, faster portfolio site.Mon, 25 May 2026 00:00:00 GMThttps://kuskira.com/blog/fea-correlation-notes/https://kuskira.com/blog/fea-correlation-notes/Practical lessons from correlating finite element models with coupon, element, and full-scale test — gauges, boundary conditions, the conservatism multiplier, and the small reference model.Sun, 12 Apr 2026 00:00:00 GMThttps://kuskira.com/blog/why-fatigue-still-hard/https://kuskira.com/blog/why-fatigue-still-hard/An essay on the parts of fatigue analysis that resist automation — scatter, history, environment, and the judgement calls no pre-processor will ever ask you about.Tue, 03 Feb 2026 00:00:00 GMThttps://kuskira.com/blog/spectrum-truncation-omission/https://kuskira.com/blog/spectrum-truncation-omission/Fatigue spectra get clipped at both ends, and the clipping changes the life. Omission, truncation, load interaction, and why the conservative direction isn't obvious.Mon, 20 Oct 2025 00:00:00 GMThttps://kuskira.com/blog/stress-tools-team-will-use/https://kuskira.com/blog/stress-tools-team-will-use/Most internal stress scripts die on the author's laptop. What separates the few that survive — and why automation makes the assumptions louder, not quieter.Mon, 14 Jul 2025 00:00:00 GMThttps://kuskira.com/blog/stress-concentration-kt-questions/https://kuskira.com/blog/stress-concentration-kt-questions/Stress concentration factors, gross versus net, and why the fatigue analyst and the static analyst quote different numbers for the same hole — and both are right.Thu, 27 Mar 2025 00:00:00 GMThttps://kuskira.com/blog/mesh-convergence-not-a-checkbox/https://kuskira.com/blog/mesh-convergence-not-a-checkbox/Refining until the number stops moving is necessary, not sufficient. Singularities, stress recovery, the right quantity to converge, and knowing where to stop.Fri, 15 Nov 2024 00:00:00 GMThttps://kuskira.com/blog/composite-laminate-failure-modes/https://kuskira.com/blog/composite-laminate-failure-modes/Metals give you one failure mode to chase. A composite laminate gives you a committee — strength, stability, and the interlaminar modes that aren't in your in-plane criterion.Tue, 09 Jul 2024 00:00:00 GMThttps://kuskira.com/blog/allowables-basis-knockdowns/https://kuskira.com/blog/allowables-basis-knockdowns/Where the number at the end of your margin actually comes from — the statistical basis, the knockdowns hiding inside it, and how they stack.Fri, 22 Mar 2024 00:00:00 GMThttps://kuskira.com/blog/bearing-bypass-bolted-joints/https://kuskira.com/blog/bearing-bypass-bolted-joints/Fastener load distribution is the classic place where FE flatters you. Bearing-bypass, fastener flexibility, and why the closed-form check still rules the FE.Mon, 11 Dec 2023 00:00:00 GMThttps://kuskira.com/blog/global-to-detail-load-path/https://kuskira.com/blog/global-to-detail-load-path/Sub-modelling is where good global models go to die. Extracting detail loads without lying to yourself — boundaries, equilibrium, and the cases that don't commute.Sat, 30 Sep 2023 00:00:00 GMThttps://kuskira.com/blog/damage-tolerance-philosophy/https://kuskira.com/blog/damage-tolerance-philosophy/Damage tolerance is a design philosophy first and a crack-growth curve second. Picking the route early — and what each one actually commits you to.Sun, 18 Jun 2023 00:00:00 GMT