Computational simulation for analysis and synthesis of impact resilient structure

• Published in: Acta astronautica Vol. 91; pp. 283 - 301
• Main Author: Djojodihardjo, Harijono
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.10.2013
• Subjects: Aircraft; Algorithms; Composites; Computation; Computer simulation; Engineering analysis; Engineering design; Finite element analysis; Impact analysis; Impact loading; Mathematical models; Optimization; Structural analysis; Structural dynamics; Synthesis; Engineering design; Structural dynamics; Composites; Finite element analysis; Impact analysis; Engineering analysis; Structural analysis
• ISSN: 0094-5765; 1879-2030
• DOI: 10.1016/j.actaastro.2013.04.023

Impact resilient structures are of great interest in many engineering applications varying from civil, land vehicle, aircraft and space structures, to mention a few examples. To design such structure, one has to resort fundamental principles and take into account progress in analytical and computational approaches as well as in material science and technology. With such perspectives, this work looks at a generic beam and plate structure subject to impact loading and carry out analysis and numerical simulation. The first objective of the work is to develop a computational algorithm to analyze flat plate as a generic structure subjected to impact loading for numerical simulation and parametric study. The analysis will be based on dynamic response analysis. Consideration is given to the elastic-plastic region. The second objective is to utilize the computational algorithm for direct numerical simulation, and as a parallel scheme, commercial off-the shelf numerical code is utilized for parametric study, optimization and synthesis. Through such analysis and numerical simulation, effort is devoted to arrive at an optimum configuration in terms of loading, structural dimensions, material properties and composite lay-up, among others. Results will be discussed in view of practical applications. •Systematic and comprehensive impact analysis of generic structure.•Surface impact analysis using Hertz theory with example.•Generic structure Finite element Impact analysis examples up to plastic limit.•Simulations show method effectiveness for resilient structure tailoring.