I have 40 years of experience, and specialize in the field of engineering mechanics and failure analysis with specific knowledge in the areas of polymers, rubbers and polymeric composite materials. I have published on such topics as experimental stress analysis, materials characterization, fire safe polymers, composites, solid propellants. I have testified 6 times on topics such as failure of plastics and rubbers. I have published over 300 articles in refereed journals and have 16 patents. I have considerable industrial as well as academic experience. I have been the recipient of several awards and the bulk of my research has been sponsored by industry.