LEADER 04771nam 2200601 450 001 9910797990603321 005 20200520144314.0 010 $a0-12-804424-1 010 $a0-12-417309-8 035 $a(CKB)3710000000529935 035 $a(EBL)4188018 035 $a(Au-PeEL)EBL4188018 035 $a(CaPaEBR)ebr11128551 035 $a(CaONFJC)MIL878821 035 $a(OCoLC)935249273 035 $a(MiAaPQ)EBC4188018 035 $a(PPN)193663635 035 $a(EXLCZ)993710000000529935 100 $a20151228h20162016 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $2rdacontent 182 $2rdamedia 183 $2rdacarrier 200 10$aNonlinear optimization of vehicle safety structures $emodeling of structures subjected to large deformations /$fJesper Christensen, Christophe Bastien 210 1$aAmsterdam, Netherlands :$cButterworth-Heinemann,$d2016. 210 4$dİ2016 215 $a1 online resource (488 p.) 300 $aDescription based upon print version of record. 311 $a0-12-417297-0 320 $aIncludes bibliographical references at the end of each chapters and index. 327 $aCover; Title Page; Copyright Page; Table of Contents; Preface; Chapter | one - Vehicle Architectures, Structures, and Safety Requirements; 1.1 - Introduction; 1.2 - Legislative requirements; 1.3 - Occupant injuries; 1.3.1 - The crash test dummy families (or the tools to capture injury criteria); 1.3.2 - Typical injury criteria; 1.3.2.1 - Head injury criteria (HIC); 1.3.2.2 - Head injury criteria for free motion head form (HIC(d)); 1.3.2.3 - Neck injury criteria (Nij); 1.3.2.4 - TI (Tibia index); 1.3.3 - Surrogate impactors; 1.3.4 - Human computer models 327 $a1.4 - Typical vehicle architectures and scope for optimization1.4.1 - Ladder frame; 1.4.2 - Tubular structures; 1.4.3 - Integral structures; 1.4.4 - Shape and size; 1.4.5 - Materials and manufacture; 1.5 - Holistic approach to vehicle design; 1.5.1 - Overall architecture design for structural instruction limitation; 1.5.2 - Local shape and sizing for legal and other desirable structural requirements; 1.6 - Conclusions and opportunities; References; Chapter | two - Numerical Techniques for Structural Assessment of Vehicle Architectures; 2.1 - Introduction to finite element analysis (FEA) 327 $a2.2 - Theory of elasticity2.3 - Elements; 2.3.1 - One-dimensional elements; 2.3.2 - Two-dimensional elements; 2.3.3 - Three-dimensional elements; 2.3.4 - Zero-dimensional elements; 2.3.5 - Meshing strategy; 2.3.6 - Element type; 2.3.7 - Element shape; 2.3.8 - Element size; 2.4 - Fundamental explicit and implicit finite element analysis; 2.5 - Nonlinear explicit finite element analysis; 2.5.1 - Understanding the need for explicit FEA in connection with vehicle safety assessment; 2.6 - Explicit FEA applied to vehicle safety assessment 327 $a2.6.1 - Standard explicit equations and convergence criteria2.6.2 - Stress wave propagation and timestep; 2.6.3 - Relating the timestep to explicit FEA for vehicle safety assessment; 2.6.4 - Critical element length; 2.6.5 - Summation of factors influencing the timestep magnitude; 2.6.6 - Importance of consistent mesh size; 2.6.7 - Manipulating timestep magnitude; 2.7 - Contacts; 2.7.1 - Panel-to-panel contacts; 2.7.2 - Tied contacts; 2.8 - Example convergence study of explicit FEA; 2.8.1 - Contact forces; 2.8.2 - Kinetic energy; 2.8.3 - Internal energy; 2.8.4 - Total energy 327 $a2.8.5 - Summation of convergence studyReferences; Chapter | three - Introduction to General Optimization Principles and Methods; 3.1 - What is structural optimization?; 3.2 - How are optimization problems generally solved?; 3.3 - General optimization methods and principles; 3.4 - The curse of dimensionality; 3.5 - Convex programming and optimization; 3.5.1 - Linear programming; 3.5.2 - The Simplex method; 3.5.3 - Application to real-world engineering problems; 3.5.4 - Sequential linear programming; 3.6 - Gradient-based methods and line search methods; 3.6.1 - Gradient descent method 327 $a3.6.2 - MatLab example of gradient descent method 606 $aAutomobiles$xSafety appliances 606 $aAutomobiles$xSafety measures 606 $aAutomobiles$xDesign and construction 615 0$aAutomobiles$xSafety appliances. 615 0$aAutomobiles$xSafety measures. 615 0$aAutomobiles$xDesign and construction. 676 $a363.1255250973 700 $aChristensen$b Jesper$01482611 702 $aBastien$b Christophe 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910797990603321 996 $aNonlinear optimization of vehicle safety structures$93700349 997 $aUNINA