Reliability and Lifetime Assessment of Glider Wing’s Composite Spar through Accelerated Fatigue Life Testing

Software reliability assessment using accelerated testing methods

The use of operational pro®les and usage-based testing has received considerable attention recently in the software engineering literature. Testing under the actual operational pro®le can, however, be expensive, time consuming or even infeasible in situations where the performance of a system is dominated by infrequent but highly critical events. We consider a real application that deals with t...

Accelerated Testing for Software Reliability Assessment

It is necessary to assess the reliability of safety-critical systems to a high degree of confidence before they can be used in the field. One theoretically sound approach for assessing software reliability is to use statistical sampling according to the operational profile. However, this method requires a prohibitive amount of testing. To make this approach more feasible, it is necessary to red...

Fatigue Life Assessment for Composite Structure

This work presents some of the most recent advances in the technologies which could enable accurate assessment of useful life for composite aircraft fatigue-critical, flight-critical components and structure. Such technology advances include: (1) nondestructive subsurface measurement shift from just detection of defects to three-dimensional measurement of defect location and size; (2) material ...

Fatigue Life Assessment of Composite Airplane Wing Subjected to Variable Mechanical and Thermal Loads

The purpose of this paper is to estimate the fatigue life of an airplane wing with laminated composite skin, subjected to variable mechanical and thermal loads. To achieve this aim,at first, the three-dimensional model of airplane wing was drawn in CATIA software. Then, by transferring the model to the ABAQUS software, the finite element model of the wing wascreated. H...

Accelerated Lifetime Testing of OLED Luminaires