Darren Tennant provides advanced analysis, test support and blast design services for a range of clients. He is an expert in 3D nonlinear finite-element analysis and is skilled in the use of the firm’s proprietary software, NLFLEX, to perform two and three dimensional finite element analysis of structures and structural components. Darren is responsible for evaluating the response of structures subjected to impact, collapse, explosive effects and thermal/fire loading. He has extensive experience validating both fast running modules and high fidelity physics-based software as part of testing programs for both computational structural dynamics (CSD), computational fluid dynamics (CFD) and coupled CFD/CFD codes. His work includes nuclear, conventional, terrorist and accidental explosive events on hardened and conventional structures. Darren has supported numerous design and retrofit projects involving infrastructure and conventional and historic buildings, with advanced structural, airblast and coupled analyses of terrorist attacks.