Often, in an event of failure of a plastic part, a tough question is raised – Why is it that only a limited number of parts are failing? This situation is particularly true when there are seemingly random failures at low, but significant failure rates. Such low failure rates often are brought out by two aspects – they are, multiple factor concurrency, and the plastic failure’s statistical nature. When two or more factors concurrently take part, failures are bound to happen and in absence of one of these factors, there is considerably lesser chances of failure to occur.
If you’re producing parts using plastic resins and associated forming processes with a statistical distribution of performance properties, strength and ductility is guaranteed. In the same manner, stress, temperature and other environmental conditions also leads to statistical distribution, in which resin is exposed through its life cycle.
Failure occurs when a portion of the distribution of stress on the parts exceeds a portion of the distribution of strength of the parts. Polymeric materials, such as plastics, are inherently subject to variability. This variation arises within the material from the molecular structure resulting from the polymerization process, and from the processes used to produce plastic parts. Most plastic failures occur when multiple factors overlap. The general five factors influencing plastic part performance are:
Join this webinar by expert speaker Jeffrey A. Jansen to understand how multiple factor concurrency combination as well as the inherent statistical nature of plastic materials can lead to seemingly random failures. Get answer to the three often asked questions with relation to plastic failures, and get to know a basic approach to life prediction, including a review of the major obstacles.
There are many obstacles to predicting the useful life of a plastic component, but often some general assessment of the suitability of a material or product can be made. Your take-home from the webinar will be a much better understanding of the practical fundamentals of why plastic components fail.
Who Should Attend
Jeffrey A. Jansen
Jeffrey A. Jansen is Senior Managing Engineer and a Partner at The Madison Group, an independent polymeric materials engineering and consulting firm. Jeff specializes in failure analysis, material identification and selection, as well as compatibility, aging, and lifetime prediction studies for thermoplastic and ther... More info