Download or read book Damage-Based Models for Step-Stress Accelerated Life Testing written by YL. Lee and published by . This book was released on 2006 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Step-stress accelerated testing of mechanical components offers great potential for improvements in reliability demonstration bench testing. Most mechanical products are designed to operate for a long period of time and in such a case, life testing is a relatively lengthy procedure. Lengthy tests tend to be expensive and the results become available too late to be of much use. To reduce the experimental cost significantly and provide an efficient tool to assess the life distribution for highly reliable products, a step-stress accelerated test was developed. Step-stress testing is achieved by testing the component at stress levels greater than operational levels in a stepwise fashion to reduce the time-to-failure, or life.