VEXTEC Presenting at Design of Medical Devices Conference

Dr. Sanjeev Kulkarni, VP of Sales and Business Development will be a featured DMD_2016_speaker at this year’s Design of Medical Devices Conference in Minneapolis, MN, April 1 1-14, 2016.  Dr. Kulkarni’s presentation titled, “Computational Durability Software as a Medical Device Development Tool (MDDT)” will be presented on Tuesday, April 12, 2:00-3:30.  VEXTEC has been working closely with the FDA and Industry and has had to develop methods and approaches in the MDDT evolution roadmap.  Dr. Kulkarni’s presentation will include what the tool specifically does, and discuss the concept of context of use and qualification, and demonstrate (with an example) its role in the current implementation as well as the tool’s potential to ultimately impact multiple device programs and support multiple device sponsors.

 

VPS-MICRO® Software Demonstration Now Available

VEXTEC's software VPS-MICRO®

VEXTEC’s software VPS-MICRO®

VEXTEC is pleased to announce that a demonstration is now available on our website of the proprietary software VPS-MICRO. VPS-MICRO is a patented software used for material model development and VLM predictions.  VEXTEC’s VLM technology is a computational framework that accurately accounts for a material’s reaction to the stress imparted upon it, its variability and all its various damage mechanisms, its geometry, and the conditions of its usage over time. VLM simulation software platform uniquely combines the industry standard FEA with a 3-D spatial model of the material microstructure to predict component durability and remaining useful life over time. Our patented physics-based computational methods accurately and efficiently predict lifecycle statistics. Click here to view the VPS-MICRO demonstration.

Reporting on TMS 2016 in Music City

March 2, 2016, by: Sanjeev Kulkarni, PhD–One realizes that they are in Nashville when the largest convention complex is called Music City Center, is humongous (12 million square feet) and has the shape of a guitar. And you know are at the TMS when all everyone is talking about is Metals and Materials – and how to make them, analyze / study them and use them for amazing applications. Last month, (February 14 – 18) both these came together at TMS 2016 – the annual gathering that brings together over 4000 globally located individuals (academicians, leaders, engineers, professionals and students) in the minerals, metals and materials fields. VEXTEC Corporation, based in the Metro Nashville area, participated at multiple levels – as an Exhibitor (with a booth), gave 3 presentations on a broad range of topics and hosted a reception on the 16th floor of the nearby spectacular Pinnacle building (a Nashville downtown landmark!)
Ashley Clark (Director of Operations) and Robert McDaniels (Senior Materials

VEXTEC's software VPS-MICRO®

VEXTEC’s software VPS-MICRO®

Engineer) did a phenomenal job of organizing and setting up the booth as an all hands task. Everyone at VEXTEC contributed in putting together the VEXTEC stall with the displays, projector, brochures and the give away items – and with the VEXTEC software VPS-MICRO® to demonstrate. It was fun to interact with the attendees who stopped by the booth with the curiosity to look for a product and /or service that just might help them with their next project or product or help with their research.
Some of the booth visitors came directly from the three separate presentations – one each given by VEXTEC co-founders, Dr. Bob Tryon and Dr. Animesh Dey, and one by me. Here are the presentation titles with a link to the slides.
• “Reliability-Based Methods for Rapid Certification of Metal Additive Manufactured Parts”, Dr. Sanjeev Kulkarni, VP for Sales & Business Development

• “Uncertainty Propagation in a Computational Fatigue Model of an Air frame Structure”, Dr. Animesh Dey, Chief Product Development Officer

• “Microstructural Small Flaw Fracture Mechanics for Improved Design Analysis” – Dr. Robert Tryon, Chief Technical Officer

The talks were well attended and each was followed by a series of insightful questions and comments with a couple of direct leads and possibilities. Overall, the conference had a very high quality of talks / presentations, though the size of the venue made the coverage of all talks in your specific area of interest logistically impossible. I would like to highlight three TMS Featured subject areas that align with VEXTEC technology and offering – Integrated Computational and Materials Engineering (ICME), Certification of 3-D Printed / Additive Manufactured components, and Use of Bioabsorbable Materials / Metals for Medical Devices.

The VEXTEC participation concluded with a reception for invitees, employees and well-wishers! A great event as we move into the amazing Nashville spring.

VEXTEC Exhibiting & Presenting at TMS 2016

Jan, 2016 —  VEXTEC is excited to announce that we will be attending the 145th Annual TMS 2016  in our hometown of Nashville, TN at the Music City Center.  VEXTEC will be exhibiting Feb. 15 – 17th in the exhibit hall at booth #534.  We also have three presentations scheduled:

  • Tuesday, Feb. 16th 4:40 p.m., Room 205B, Reliability-Based Methods for Rapid Certification of Metal Additive Manufactured Parts
  • Tuesday, Feb. 16th 4:40 p.m., Room 207C, Uncertainty Propagation in a Computational Fatigue Model of an Air frame Structure
  • Wednesday, Feb. 17th 9:30 a.m., Room 213, Microstructural Small Flaw Fracture Mechanics for Improved Design Analysis

TMS 2016

Presentation for the 2015 SIMULIA West Regional User Meeting

Author:  Dr. Sanjeev Kulkarni, Vice President Sales and Business Development.

Dr. Sanjeev KulkarniLast week, I was at the 2015 SIMULIA West Regional User Meeting held at the historic Hayes Mansion in San Jose, CA! VEXTEC was one of the sponsors of the event and is a partner of the Advanced Integration Program. It was the 20th anniversary of this event and I was at the first of these events held in Long Beach. The longstanding tradition of the Regional User Meeting format has continued – providing an invaluable platform for industry and academia to join together and share their knowledge and experience in advancing methods and technology for finite element analysis, multi-physics, process automation, design optimization and simulation management . It was great to catch up with old friends (the Computational Modeling community is a small and close knit community), connect with other users and learn how the latest simulation technology and methods can accelerate and improve product development. At the meeting, I learned about Simulia’s Learning Community portal which is a convenient site to keep abreast of the latest collaborations in the 3DS eco-system.

The main event included future strategies and technology/product updates from Simulia leadership as well as User Presentations and Networking opportunities. I also had the opportunity to participate as an invited speaker. My talk entitled – Computational Modeling of Complex Systems using “Digital Twin” and “Digital Thread” Frameworks – underscored of how VEXTEC’s Virtual Life Management (VLM) technology compliments and aligns with Dassault Systèmes (DS) strategy of computational modeling and uncertainty management. VEXTEC is developing this technology as part of the US Air Force’s initiative on developing a computational Digital Thread, Digital Twin eco-system.

Here is a link to the slides from my presentation: VEXTEC DS SimuliaWest 2015_Presentation

VEXTEC Seeking Analytical Engineers to Join Our Team

We are seeking enthusiastic, hard working, self motivated graduates to be a part of our engineering analysis team.

For the Analytical Engineer I Position, qualified candidates will have the following skills:

  • B.S. in Engineering (Civil, Mechanical, BME, Material Science degrees are preferred)
  • Familiarity and experience with engineering simulation tools (FEA)
  • Excellent analytical and problem solving skills
  • Ability to write engineering code is preferred
  • Technical report writing experience is a plus
  • Ability to work independently
  • Self-motivated with the ability to pick up new analytical skills

For the Analytical Engineer II Position, qualified candidates will have the following skills:

  • M.S./Ph.D. with a B.S. in Engineering (Civil, Mechanical, BME, Material Science degrees are preferred)
  • Experience in structural mechanics or fracture mechanics
  • Knowledge of probabilistic methods and statistics
  • Knowledge of finite element modeling and analysis. Deep familiarity and experience with commercial finite element software such as ANSYS, Abaqus, Nastran will be an asset
  • Familiarity and experience with engineering simulation tools
  • Excellent analytical and problem solving skills
  • Ability to write engineering code is preferred
  • Technical report writing experience is a plus
  • Good communication skills both oral & written
  • Ability to work independently
  • Self-motivated with the ability to pick up new analytical skills

To apply for a career at VEXTEC, please send your cover letter and resume to info@vextec.com

VEXTEC Team Awarded $1.36M to Develop Software that Predicts the Effect of Stress Corrosion Cracking for Navy

VEXTEC Corporation was awarded the prime contract from the US Navy to build software, Corrosion Cracking Maintenance Prediction Software (CCMPS), that predicts the future maintenance needs for aluminum (5000 series) ship structures, based on current damage state and expected usage (ONR-BAA14-003). Team members include researchers from the University of Virginia (UVa) Center for Electrochemical Science and Engineering. In the proposed effort, VEXTEC and consultants will use existing data and models to calibrate the software and consult with the Navy to gather additional data and develop new models.

Corrosion Cracking Maintenance Prediction Software (CCMPS) will analyze four locations.

Corrosion Cracking Maintenance Prediction Software (CCMPS) will analyze four locations.

Previous collaborations with Navy contracts by the team of UVa, Navmar and VEXTEC led to the development of SCCrack, software that was calibrated and validated experimentally and used to predict stress corrosion cracking (SCC) in generic engineering details fabricated from 5083H131 aluminum alloy.

“CCMPS uses our patented Monte Carlo technique, serve as the backbone for all the software and the data and will be instrumental in predicting the future maintenance of ships based on current damage state and expected usage, “ says Dr. Bob Tryon, VEXTEC CTO and the Principal Investigator on the contract. The software leverages the initial state model created at critical locations, simulates sailing the Virtual Twin ship accounting for empirical and physics based damage accumulation to predict the times for maintenance and repair actions. The damage processes and repair events are simulated as computational models, mathematical functions or lookup tables and in general, models can complex or simple. Dr. Animesh Dey, Chief Product Development Officer at VEXTEC says, “CCMPS will have a modular framework and this allows each critical location to be linked to the proper models.”

The predictive analytics module will create a Virtual Twin® of the ship that allows a system of many individual components, each with their own set of failure modes and mechanisms. In this multi-tiered hierarchical representation, the fleet of naval vessels is at the top-most tier, and the local critical location on the ship is at the lowest tier. The failure distributions of these lowest tier components will be generated from the Monte Carlo tool and “rolled-up” from the lowest tier distributions to the system and fleet reliability databases.

VEXTEC offers its patented Virtual Life Management® (VLM®) software and services to a variety of commercial and government customers. The University of Virginia Center for Electrochemical Science and Engineering is a multi-disciplinary research effort which includes several engineering departments.

VEXTEC Presenting Computational Software for Predicting the Durability of Pacemaker Leads at Frontiers in Medical Devices Conference in Washington, DC

Brentwood, TN May 15, 2015 – Dr. Sanjeev Kulkarni, Vice President of Sales & Business Development of VEXTEC Corporation, will be presenting VEXTEC’s computational software for predicting the durability of pacemaker leads at the BMES/FDA “Frontiers of Medical Devices Conference: Innovations in Modeling and Simulation” in Washington, DC.  The conference, which runs from May 18 – 20, 2015, is hosted by the Biomedical Engineering Society (BMES) and the US Food and Drug Administration (FDA) in partnership as a meeting for researchers, engineers, clinicians and other professionals in the fields of designing, building and using medical devices.  This year’s theme is Using Modeling and Simulation at Different Stages in the Total Product Life Cycle.

Dr. Kulkarni will be presenting, “Verification & Validation of Computational Software for Predicting the Durability of Pacemaker Leads” on May 19th.  The software model is call a Virtual Twin® and can be created with the initial preliminary design of the device and is refined as the device moves though the detailed design, manufacturing, testing, launch and post market segments of the product life cycle. At any phase of the life cycle, the model is used to prognose the probability of success in the future phases of the life cycle.

The core technology within the durability prediction software is its probabilistic integration of structural analysis with material microstructural damage simulation and test setup. The software allows for three dimensional analysis that is multi-scale in size and time. The software is fully probabilistic with material properties as random fields. The supporting evidence for the Specific Context-of-Use of cyclic bench testing comes from a project that VEXTEC completed for Boston Scientific’s Cardiac Rhythm group on MP35N pacemaker leads. The computational model is capable of simulating the statistical distribution of cyclic lifetimes derived from laboratory tests. With this model, the design engineer can assess the risk of failing the bench test and thus the risk of a device redesign resulting in a saving in the cost and time of the design process.

 

Dr. Kulkarni will also be giving demonstrations of the software capabilities and functionality at VEXTEC’s exhibitor booth during the conference. During the conference, Sanjeev will also serve on the panel of judges to evaluate student podium presentations and participate in the Medical Devices Special Interest Group meeting.

 

Further, on May 20 and 21, Dr. Kulkarni will attend the ASME V&V 40 Committee Meeting in Silverspring, MD. Sanjeev has been on the committee to standardize verification and validation for computational modeling of medical devices since its inception in 2010 and chairs the Stent subgroup.

 

Founded in 2000, VEXTEC Corporation has developed patented technology on virtual material modeling and predicting product durability. As a senior strategic member of VEXTEC’s Leadership Team, Dr. Kulkarni leads commercial Sales & Business Development with a focus on Healthcare/Life Sciences/Medical Devices and Strategic Alliances. Dr. Kulkarni is an industry recognized leader and expert in Computational Mechanics and Computer Aided Engineering, and has supported many industries (Automotive, Aerospace, Defense, Energy, Consumer Products and Medical Devices) and in a variety of roles that include 5 years with Boston Scientific (as R&D Fellow), 10 years with KB Engineering (as President) and 6 years with TRW Automotive (as Principal Engineer).

VEXTEC Presenting Uncertainty Management at the 2015 ASME Verification & Validation Symposium

ASME V&V Symposium 2015 Program

ASME V&V Symposium 2015 Program

Brentwood, TN May 7, 2015 – Dr. Sanjeev Kulkarni, Vice President of Sales & Business Development of VEXTEC Corporation, will be presenting at the fourth annual ASME Verification & Validation Symposium in Las Vegas, NV on May 15, 2015.  The symposium, which runs from May 13 – 15, 2015, is entirely dedicated to verification, validation and uncertainty quantification (VVUQ) of computer simulations bringing together the foremost experts to exchange ideas and methods around for verification of codes and solutions, simulation validation and management of uncertainties in mathematical models, computational solutions and experimental data. Dr. Kulkarni is also chairing two sessions in the symposium, Validation Methods for Solid Mechanics and Structures (May 13) and Validation Methods for Impact, Blast, and Material Response (May15).

 

Dr. Kulkarni will be presenting, “VVUQ of Computational Modeling and Simulation Software To Predict The Durability Of Medical Devices”  which will discuss VEXTEC’s system reliability method and software, called Virtual Life Management® (VLM®). The VLM software considers the uncertainty of model parameters and acquired data to serve as a framework to incorporate realism with multi-scale statistical characterization using probabilistic and parallel computational simulation techniques.  The model itself, called a Virtual Twin®, characterizes parametric design sensitivity and uncertainty; both factors included in the proposed ASME V&V 40 Standard for Medical Devices. The talk will make that connection between VLM and ASME V&V 40.

 

The Virtual Twin, successfully implemented across multiple industries, starts with the initial preliminary design where it supports verification and validation activities and then is refined as the device moves through the detailed design, manufacturing, testing, launch and post market segments of the product life cycle. At any phase of the life cycle, the model considering uncertainty of any or all of the inputs to prognosticate the probability of device success in the future phases of the life cycle.

 

Founded in 2000, VEXTEC Corporation has developed patented technology on virtual material modeling and predicting product durability. As a senior strategic member of VEXTEC’s Leadership Team, Dr. Kulkarni leads commercial Sales & Business Development with a focus on Healthcare/Life Sciences/Medical Devices and Strategic Alliances. Dr. Kulkarni is an industry recognized leader and expert in Computational Mechanics and Computer Aided Engineering, and has supported many industries (Automotive, Aerospace, Defense, Energy, Consumer Products and Medical Devices) and in a variety of roles that include 5 years with Boston Scientific (as R&D Fellow), 10 years with KB Engineering (as President) and 6 years with TRW Automotive (as Principal Engineer).

VEXTEC Presenting at 14th Annual Design of Medical Devices Conference

VLM Software

VEXTEC’s VLM software for leads of defibrillator devices

Brentwood, TN, April 10, 2015 – Dr. Sanjeev Kulkarni, Vice President of Sales & Business Development of VEXTEC Corporation, will be presenting at the 2015 Design of Medical Devices Conference on April 15, 2015. The conference will be held in Minneapolis, Minnesota April 13 – 16. Representatives from world-class medical device designers, researchers, manufacturers, and the public sector will be in attendance to share perspectives and innovations in medical device design.

Dr. Kulkarni will be presenting, Uncertainty Management in Computational Simulations of Medical Devices” which will discuss VEXTEC’s software based uncertainty management tool to virtually manage the life of products.  VEXTEC’s Virtual Life Management® (VLM®) software uses efficient Monte Carlos simulation with system reliability methods to analyze risk and predict failure at component, system and population level for many types of products including medical devices. Based on the tool’s maturity in other industries, the FDA has accepted the tool into the Medical Device Development Tool (MDDT) pilot program. The VLM® tool considers the uncertainty of model parameters and acquired data to serve as a framework to incorporate realism with multi-scale statistical characterization using probabilistic and parallel computational simulation techniques. VEXTEC will also participate in the Scientific Poster Session on April 15

Founded in 2000, VEXTEC Corporation has developed patented technology on virtual material modeling and predicting product durability. As a senior strategic member of VEXTEC’s Leadership Team, Dr. Kulkarni leads commercial Sales & Business Development with a focus on Healthcare/Life Sciences/Medical Devices and Strategic Alliances. Dr. Kulkarni is an industry recognized leader and expert in Computational Mechanics and Computer Aided Engineering, and has supported many industries (Automotive, Aerospace, Defense, Energy, Consumer Products and Medical Devices) and in a variety of roles that include 5 years with Boston Scientific (as R&D Fellow), 10 years with KB Engineering (as President) and 6 years with TRW Automotive (as Principal Engineer).