Vasudeva Reddy Avuthu

*** *** ******, *******, ** 29631 Tel: 864-***-**** acq7ds@r.postjobfree.com

https://www.linkedin.com/profile

SUMMARY

1.2 years of academic research experience in Computer Aided Engineering (CAE) and Finite Element Analysis (FEA-Dynamic/Static, Linear/Non-linear).

2.Expertize in mechanical design and analysis, Computational Geometry, Mesh generation, Optimization and in using HYPERMESH, ABAQUS, ANSYS, Pro-E and MATLAB.

3.Experience in performing FEA ranging from Structural, Crash, Blast analysis to NVH, Thermal and Fatigue analysis.

4.Specialized in developing Computational Material Models using user-material subroutines and keen understanding of DFM, DFA, FMEA and GD&T.

5.Trained in Product Lifecycle Management (PLM) and Bill of Materials (BOM) and a Certified Pro-E user (Pro-E Wildfire 5.0, ID-PTC202-0037).

EDUCATION

Masters in Mechanical Engineering, Clemson University, Clemson, SC 3.6/4.0 GPA

Bachelor of Engineering: Mechanical Engineering, JNTU, Visakhapatnam, India 3.5/4.0 GPA

CORE COMPETENCE

Computer Aided Engineering (CAE) Stress and life prediction analysis Full vehicle crash analysis

Finite Element Analysis (FEA) NVH and Thermal analysis Design Optimization

Mesh generation CAD and Python Coding Fatigue & Vibrational analysis

Computational Material Modeling Strength of Materials Automotive Engineering

WORK EXPERIENCE

Graduate Research Assistant, Clemson University, SC (Jan 2014 – Present)

Responsibilities:

Development of algorithms, numerical investigation for modeling and analysis of mechanical components.

Perform Finite element analysis ranging from structural to thermal and fatigue analysis using CAE tools.

Developing high fidelity physical based Computational material models using user-material subroutines (VUMAT).

Applying various optimization methods and statistical procedures (ANOVA, DOE, probability distributions).

Thesis Topic: Development of Computational Material Model for Transparent Armor Applications

A Material model is written in FORTRAN which includes the effects of high pressure crystallization on mechanical properties of silica-glass.

This is linked with FE solver ABAQUS as a user-material subroutine and FE analysis is carried out on impact of armor plate by a piercing bullet to find the effect on penetration resistance.

SKILLS

CAD modeling : CAD, Pro Engineer, CATIA v5, HyperWorks, SolidWorks

Finite element analysis software : ABAQUS, ANSYS, LS-DYNA, nCode, COMSOL.

Pre-processor & MBD software : HYPERMESH, MATLAB and SIMPACK

Optimization and programming : OptiStruct, VisualDoc, MATLAB, FORTRAN, Python Coding, SAS and C

Post-Processor : ABAQUS CAE, MS Excel, MS Word

PLM/BOM : TeamCenter, Windchill

GRADUATE RESEARCH PROJECTS

Ballistic impact of gas turbine shrouds: (1 Journal publication)

A fully homogenized gas-turbine engine component-level room-temperature material model for SiC/SiC ceramic matrix composites (CMCs) has been derived using a multi-length scale approach.

Unit cells of SiC composites were modeled in HyperMesh and FE analysis were done to develop a material model.

User-material VUMAT file is written in FORTRAN & linked with ABAQUS to find structural response to ballistic impact.

Durability/Fatigue analysis of a Horizontal-Axis wind turbine blade:

Using the structural analysis results of a turbine blade subjected to gust loading, fatigue damage is calculated using rain-flow analysis, Goodman diagram and miner’s rule.

Minor design modifications are made on the turbine blade to improve fatigue life.

Full Vehicle Crash Analysis in LS-DYNA:

Different car models were tested for crash analysis in LS-DYNA to see the crashworthiness of the model.

Modifications for the car front panel was suggested to reduce the impact on the occupant.

Non-Linear FE analysis of implanted human tibia bone for Stress concentrations:

The 3D and FEA models were modeled in CATIA v5 and HyperMesh and gait loading FEA is carried out in ABAQUS.

The stress results are analyzed and a statistical analysis DOE and ANOVA is employed. Stresses concentrations are reduced by 20% by properly selecting design parameters.

Thermal analysis of a CMC ring component during RMI process:

Temporal evolution and spatial distribution of temperature inside a CMC ring component was investigated during a reactive melt infiltration (RMI) process using COMSOL.

Multi-objective optimization of a boat mast:

A python code was developed to iterate the structural analysis on a boat mast for stresses and deflection in ANSYS.

Visual-Doc is linked with Abaqus for optimization and a Pareto- front is generated.

Honeycomb structures for sound transmission loss:

NVH analysis is done to modify the geometry of the honeycomb unit cell to maximize the Sound Transmission Loss (STL) characteristics of sandwich panels using Abaqus.

Design Optimization of Different types of bevel Gears in Pro-E:

A variety of bevel gear pair models based on AGMA standards were modeled using Pro-E

Models were optimized based on design optimization approach in Pro-E based on analytical equations.

JOURNAL PUBLICATIONS

1.M. Grujicic, V.Avuthu, R. Galgalikar, S. Ramaswami, J. S. Snipes, “Multi-length-scale derivation of the room-temperature material constitutive model for Sic/Sic ceramic-matrix composites (CMCs)”, Part L: Journal of Materials: Design and Applications, December 2014.

2.M. Grujicic, V. Avuthu, J. S. Snipes, S. Ramaswami, “Material-model optimization of armor-grade polymer-matrix composites for superior ballistic-penetration resistance”, International Journal of Structural Integrity, submitted for publication, February 2015.

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