FEA assisted Product design, optimization & verification.

Deep Gulf Energy "Kodiak"-. SCR & Umbilical hang-off structure stress analysis-. SCR hang-off forging stress analysis-. SCR pull tube lower housing stress analysisStatoil "Bay du Nord" Feasibility Study-. Configuration optimization of Steel Lazy Wave Riser hanging off from a disconnectible Buoy of the Bay du Nord FPSO. Obtained a optimized SLWR configuration that satisfies the strength requrement of DNV F201 LRFD. ExxonMobil "Scarborough" PreFEED (Turret-moored FLNG): -. Umbilical configuration optimization, to minimize compression & curvature, by high-throughput screening of thousands of possible lazy wave configurations, using fully automatic Orcaflex pre/post & batch run. -. Umbilical strength analysis, and steel lazy wave riser strength analysis. -. Received 100% satisfaction rating from client/project manager.FM O&G "Holstein" & "Horn Mountain" spar tie back PreFEED, FEED, & Detailed Engineering: -. Configuration evaluation and selection: SCR vs. SLWR vs. flexible -. Flexible riser & umbilical riser tie-back to spar: interference, strength, and fatigue analysis-. Received 100% satisfaction rating from project manager.Noble "Gunflint" -. Interference Analysis of production SCR & umbilical-. Installation Analysis of SCRNoble "Leviathan", Steel Lazy Wave Riser analysis for FPSO: riser sizing & clearance check (considering wake effect and VIV induced drag amplification). Anadarko "Constitution" & "Nansen" spar TTR decommissioning analysis: strength check & clearance check of TTRs during retrieval procedure.

-. Noble "Leviathan", VIV analysis for SCR & Steel Lazy Wave Risers, using shaped SCR & upset ends to improve fatigue life @ touch-down-. Total "Moho Nord", VIV analysis for TTR & Tendon; DTI ram-style tensioner design verification FEA-. Hess "Tubular Bells", Mooring pile padeye casting design optimization using parameterized ANSYS modelling, resulting in 45% of weight & cost saving. -. Chevron "Frade", Umbilical service life verification-. Tapered Stress Joint profile design tool development

Statoil "Snorre A" TTRs:-. Global TTR analysis (Flexcom, Riflex, & ABAQUS)-. Local component analysis, including Spider table load ring, tapered stress joint, transition joints, tension joint, guide frame(ANSYS, ABAQUS)

PROJECTS: -. Nobel “Aseng” (“Benita”), strength analysis of Flexible risers (bidding)-. Tullow “Jubilee”, strength analysis of Flexible risers (bidding)-. Anzon “Basker Manta”, service life calculation of Flexible risers -. Anadarko “Caesar Tonga”, service life calculation of Flexible risers, end-fitting seal-ring analysis -. Maersk Oil “Gryphon”, upheaval buckling analysis of Flexible flowline-. Statoil “Peregrino”, lateral buckling analysis of Flexible flowline-. Venezuela Lake Maracaibo, pipe-lay analysis of Flexible flowline-. Chevron “Frade”, Flexible flowline collapse strength check considering abnormal Carcass profile-. Chevron “Tahiti”, smoothbore Flexible pipe PVDF barrier layer design -. Petrobras “Roncador”, pipe-lay tensioner pad verification for installing 16” Flexible jumper -. Halliburton “Stim Star” vessels, pipe lay roller system design for Flexible pipe installation -. Flexible pipe packaging reel analysis/design -. Flexible pipe maximum allowable clashing energy calculationANALYSIS & CALCULATION TOOL DEVELOPMENT: -. (Flexlok aided carcass) collapse strength calculation-. Minimum bend radius calculation (Loss-interlock of pressure armor layer)-. Birdcage of tensile wires, -. Gap span analysis of barrier layer, -. End-fitting seal-ring analysis for FAT,-. Service life calculation, fatigue damage of tensile wires and pressure armor layer-. Contact analysis between pipe and Bend-stiffener/Bell mouth,-. Pipe clashing, -. Flowline upheaval buckling & lateral buckling,-. Pipe local structural nonconfirmity qualification studies (non-nominal profile shapes of carcass/pressure armor layer)TECHNICAL PRESENTATIONS: -. OMAE-2008: Bent collapse strength of flexible pipes.-. OMAE-2009: Impact of barrier ingress on Flexlok stress.-. OTC-2010: Flexible pipe curved collapse behavior assessment for ultra-deep-water developments for the Brazilian pre-salt area.-. ANSYS-2008: 3D FEA simulation of Flexlok layer loss of interlock.

-. Developed Ternary Phase Diagram extraction tool, for high-throughput screening of superalloys. Patent disclosure letter filed for the software tool. -. Obtained optimal crystal seed design that minimizes the coefficient of thermal expansion (CTE) mismatch stress (and thus dislocation density) when growing bulk GaN crystal on Sapphire substrate. Patent disclosure letter filed for this novel crystal growing method. -. Obtained an optimal gold can design that reduces plastic strain at can lid weld by 52%, when the gold can is used for growing bulk GaN under high-temperature and high-pressure.

Mechanics of thin metal films, based on dislocation energy on interface of two anisotropic materialsMicrostructural feature evolution of AlMgSi during large deformation at elevated temperature.