Trans-scale Analysis Of Failure Behavior Of Laminated Structure Materials For Aeronautics Application

Materials of mechanical engineering often appear material failures under harsh conditions, especially in aerospace field. Thus, materials with higher properties are needed. This paper attempts to show the true representation of various mechanical tests of laminated structure materials for aeronautics application by using large commercial finite element software ABAQUS and Python on ordinary PC. Our main purpose is to break through type restriction of materials and bridge the gap between macro-scale and micro-scale in engineering materials, achieving the goal that all engineering materials including alloy material such as welding joint can be analysed by ABAQUS or Python and, subsequently achieve the ultimate goal that mechanical experiments serve as guidance to practical engineering problem.Although the engineering materials have been used for thousand years, but cross-scale analysis of mechanical properties of engineering materials should be improved. For instance, engineering materials display complex nonlinear mechanical properties and crack propagation behavior when heavy-loaded because of differences between macro and micro theoretical model. Material structure plays a crucial role on its properties. In the same way, properties of engineering materials play a crucial role on its service behavior, which directly influence the engineering construction and development. Consequently, it is particularly important to analyse the mechanical properties of engineering materials. For any kind of engineering materials, it is extremely significant to build proper finite element model and analyze its failure behavior in both macro and micro levels, judging the situation and ensuring the normal operation of the structure and security.In this thesis, large commercial finite element software ABAQUS was employed as technical platform, together with Python parametric scripting language, we established an experimental model on mechanics of engineering material and related analysis procedure. Macro- and micro-mechanics finite element model was used respectively for related damage procedure and destruction analysis of engineering materials, and finally draw a comparison between the results.