Stress Engineer

OBAIDUR RAHMAN MOHAMMED

**** ********* **,

Wichita Kansas 67208

Ph #: 475-***-****

Email: *****.********@*****.***

Professional Summary :

Stress Engineer with more than 5 years of progressive experience specializing in Design & FEM analysis, project team supervision, Crash & safety analysis and design improvement in aviation industry.

Skills :

Finite Element Analysis

Proficient in Solidworks

LS-DYNA

Geometric Dimensioning

MADYMO

MATLAB

Human Dummy Model Responses

Microsoft Word

Stress and Strain Analysis

CREO Parametric

CATIA V5

ANSYS

HYPERMESH

HYPERWORKS

PRIMER

SOLIDWORKS

ENOVIA V5

PDM WINDCHILL

PRO-E

NASTRAN/PATRAN

MINITAB

MS-POWERPOINT

Work Experience :

Research Assistant AUGUST 2015-PRESENT

National Institute for Aviation Research – NIAR, Wichita, KS

Managed conducting full scale structural crash tests on a variety of high rate and low rate sensitive seats for Vehicles

Built CAD models with standard mesh requirements and setup the model as per the regulations

Performed seat cushion replacement program project monthly and final reports for Federal Aviation Administration (FAA) and Advanced General Aviation Transportation Experiment (AGATE).

Significant experience with crash testing program at Crash Dynamics Laboratory at the National Institute for Aviation Research.

Substantial knowledge and experience with anthropomorphic test dummies (ATD) categories and their capabilities.

Performed several computer simulations identical to experimental test conditions at the NIAR Computational Mechanics Lab using Hypermesh and LS-DYNA, validating the experimental test data.

Error Metrics analysis for seat validation for head path, pitch & roll, Vertical tests

Post-processing and documentation of numerical analysis results (Stress Analysis, Load Path Analysis, etc.) using HYPERWORKS

FE modeling, property/material assignment, set up LS-DYNA Deck with Dummy and Seat belt arrangements

Proficient in the use of detailed hand calculations and computer simulation techniques for weight structures stiffness and strength analysis in aerospace structures analysis

Analyzed the various vehicle deformations, energy absorptions and dummy responses after impact

Closely familiar with the FAA safety codes and regulations.

Stress Engineer - I MARCH 2013-DECEMBER 2014

GLOBAL LOGIC TECHNOLOGIES – Hyderabad, INDIA

Created 2D drawings according to GD&T standards. Designed injection-molded plastic parts, machined parts and sheet metal parts in 3-D CAD.

Responsible for creation of finite element models (FEMAP, NE NASTRAN)

Stress analysis and finite element model reports for the Crank Shaft assembly

Conducted Failure Mode and Effects Analyses (FMEA).

Researched and analyzed customer design proposals, specifications, manuals and other data.

Designed, laid out, tested and evaluated mechanical and electro-mechanical devices and systems. Worked with suppliers to fabricate both prototype and production parts.

Designed injection-molded plastic parts, machined parts and sheet metal parts in 3-D CAD model with CATIA V5.

Integrated electro-mechanical components such as displays, switches, cables and connectors.

Responsible for the derivation of detailed technical specifications

Designed pipeline components and developed production layouts using CatiaV5 & SOLIDWORKS

Contributed in design and analysis support to manufacture to ensure that strength and stiffness requirements are examine

DESIGN TRANIEE SEPTEMBER 2012-FEBUARY 2013

ZUTI ENGINEERING - Hyderabad, INDIA

Developed, coordinated, and designed all aspects of modules including Sheet Metal, Assembly, Drafting and selection of manufacturing methods, fabrication, and operation of product designs.

Designed and detailed mechanical parts and cable assemblies using CREO 2.0.

Conducted research to test and analyze equipment and system feasibility, design, operation and performance.

Initiated project management knowledge study and subsequently standardized project management practices.

Carefully selected manufacturing methods, fabrication and product designs.

Created standards, methods, processes and procedures for reviewing, evaluating and inspecting mechanical projects.

EMPLOYMENT PROJECTS

Modelling and Accident Reconstruction of BOEING 737- FAA NIAR-Wichita

Assisted in design and development of Boeing 737 on CATIA V5, Prepared fillets organization & connection points for SEC-41, SEC-44.

Performing Geometry clean-up and meshing the BOEING 737 model for SEC-41

Maintaining the element quality,morphing, checking normal,penetration check etc. according to the client requirements

Investigation of suitable material for aircraft components in different section of BOEING -737.

Documenting quality criteria of the aircraft Section & working on final report after post-processing.

BE AEROSPACE SEAT- BOEING NIAR-Wichita

Conducted post-processing on BE AEROSPACE aircraft seats, determined the results for prediction test,validation tests and sled test

Performed error metrics for full seat validation, prediction with head path, pitch &roll and vertical simulation configurations

Compared the results of kinematic responses with BE seats, NIAR ATDS on HYPERGRAPH

Documented the results for report and organized the presentation.

MOLON LABE SEAT NIAR-Wichita

Worked on finite element modeling for Molon Seats parts using HYPERMESH

Prepared connections 1D element between mesh component for complete seat structure

Maintained the quality criteria, morphing of components and material card properties

Investigated the experimental results with validation results of hybrid III Dummy

BEECHCRAFT BONANZA A36 – TEXTRON AVIATION NIAR-Wichita

Re–design of bonanza a36 (fuselage, wing, stabilizers)using CATIA V5 for numerical investigation

Performed coordination with all disciplines for best outcome resolution of issues throughout the engineering package release process, make layouts, solve short ED problems, add correct processes, interferences, part alignments and other problems.

Developed process drawings & flow charts and contributed for new product designs and modifications on the preparations of projects and their data, accomplished all the projects from design to supply phases

Prepared creation of Bill of Materials and functional specs.

AIRBUS 320 LEADING EDGE STRIKE ANALYSIS - AIRBUS NIAR-Wichita

Executing finite element process for AIRBUS 320 leading edge with comprehensive element criteria

Prepared cohesive element for failure analysis for the leading edge during strike analysis

Enumerated material specification and maintained the material card properties.

Organized the final report and collaborated with leads in designing effective presentation

CURRENT RESEARCH & THESIS

Pedestrian Collision Responses Using Legform Impactor Sub-System and Full-Size Pedestrian Model on Different Workbenches:

Investigation of Knee Injury parameter Held With Pedestrian During The Collision With Mid-Size Cars

FE Simulation of legform impactor in LS-DYNA and evaluating pedestrian injuries in MADYMO

Develop and validate internal structural loads using finite element (FEM) approaches in LS-DYNA

Post-processing results evaluated in three cases of Knee Injury as Shear Displacement, Tibia Acceleration, and Knee Bending Angle etc.

Results between time history curves, force vs. displacement curve and obtain injury failure on different workbenches

ACADEMIC PROJECTS

Structural analysis and optimization of an Airplane Wings at MLRIT, HYD, INDIA-January 2012 to July 2012

Seat curvature Class A Surfaces design for Universal Headrest at SEAT KING, KS – Aug 2015 to Dec 2015

Working Mechanism of a Knuckle and control arm of an UTV, Wichita, KS – Aug 2015 to Dec 2015

Working mechanism of an Aircraft’s elevator at WSU, Wichita, KS-Aug 2014 to Dec 2014

Structural analysis of a spring board at WSU, Wichita, KS-August 2014 to December 2014

Certifications

Hypermesh certification, ALTAIR UNIVERSITY 2015

LS-DYNA Training, National Center for Aviation Training. 2015

CATIA v5 Trainee, National Center for Aviation Training. 2015

Design Engineer, PTC UNIVERSITY 2013

Education

Doctor of Philosophy in Mechanical Engineering -current -

WICHITA STATE UNIVERSITY- Wichita, KS.

Master of Science in Mechanical Engineering 2016

WICHITA STATE UNIVERSITY- Wichita, KS. GPA - 3.7

Master of Science in Mechanical Engineering 2015

FAIRFIELD UNIVERSITY- Fairfield, CT. GPA - 3.5

Bachelor of Technology in Aerospace Engineering 2012

JAWAHARLAL NEHRU TECHNOGICAL UNIVERSITY, INDIA GPA – 3.5

Contact this candidate