MECHANICS OF COMPOSITES IN LIGHTWEIGHT STRUCTURES: EFFICIENT TESTING AND COMPUTATION ACCOUNTING FOR COMPLEX 3D BEHAVIOUR

摘要

Textile and thick composites show growing importance for cost efficient manufacturing and need a proper out-of-plane failure analysis for safe performance of modern aircrafts. Both important types of composites show complex 3D mechanical behaviour. The paper presents:1. A new testing device accounting for combined out-of-plane loading.2. An efficient computational method using finite volume-p-elements based on hierarchical shape functions and error estimators.3. Experimental validation of 3D-failure computation.Striving for safe and efficient industrial standards, this work provides the basis for certification issues according to experimental testing and predictive virtual testing.