Vetted SpecialistsExample profileYuki T.Senior Structural Analysis Engineer, SpacecraftStructural lead for a 350 kg ESPA-class bus: built and checked the 1.2M-DOF Nastran model, ran coupled loads with two launch providers, and cleared every primary and secondary structure margin through CDR with no negative margins at qualificationCorrelated the model to a modal survey within 5% on the first six modes; the update trimmed a bracket redesign the program had already scheduledAuthored the fracture control plan and NASGRO assessments for 40+ fracture-critical parts, accepted by the launch provider without a resubmittalNastran / FemapCoupled loadsFracture control
Vetted SpecialistsExample profileLuca G.Structural Analysis Engineer, Launch Vehicle StructuresOwned stress on a small-lift vehicle’s common-dome tank and thrust structure in Abaqus: nonlinear buckling, weld-land fatigue and cryogenic material properties, with proof and burst test correlation within 8% of predictionDerived flight loads from trajectory, gust and engine-out cases and maintained the loads book across three vehicle configurations without a missed load case at the design reviewsCleared 28 flight-critical fittings and interstage joints by hand calc and detailed FEA to NASA-STD-5020 preload and joint-separation criteria, then walked the margins through a range safety reviewAbaqusFatigue / cryogenicLoads derivation
Vetted SpecialistsExample profileJulian R.Principal Structural Analysis Engineer, Defense SystemsLed structural and dynamic analysis for a Group 3 UAS airframe and a seeker gimbal assembly under DCMA oversight: composite laminate analysis in ANSYS, MIL-STD-810 vibration and shock qualification, and gunfire and aircraft-carriage environmentsRan the airframe durability and damage tolerance program to MIL-STD-1530 principles with AFGROW crack growth and a full-scale fatigue test correlated within one lifetime of predictionBuilt the site’s analysis standards — model checklists, margin templates and a hand-calc library — and mentored a team of five analysts across two programsANSYS / compositesMIL-STD-810Durability and damage tolerance