𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Sensitivity analysis and optimal design of non-linear structures

✍ Scribed by Z. Mróz; J. Piekarski

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
245 KB
Volume
42
Category
Article
ISSN
0029-5981

No coin nor oath required. For personal study only.

✦ Synopsis

Sensitivity analysis for non-linear elastic structures in regular and critical states is ÿrst discussed including design parameters and initial imperfections. Next, the optimal design problem is formulated by considering imperfect structures and setting constraints on de ections and stresses. For structures with unstable postcritical response the limit load constraint is introduced in the optimization procedure. Several examples of truss optimization are provided. The level of initial imperfections can be regarded as design parameter and speciÿed from the optimal solution.

📜 SIMILAR VOLUMES

Design sensitivity analysis and optimiza
Design sensitivity analysis and optimization of non-linear transient dynamics. Part I—sizing design
✍ Seonho Cho; K. K. Choi 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 280 KB 👁 1 views

A continuum-based sizing design sensitivity analysis (DSA) method is presented for the transient dynamic response of non-linear structural systems with elastic}plastic material and large deformation. The methodology is aimed for applications in non-linear dynamic problems, such as crashworthiness de

Design sensitivity analysis and optimiza
Design sensitivity analysis and optimization of non-linear transient dynamics. Part II—configuration design
✍ Seonho Cho; K. K. Choi 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 221 KB 👁 1 views

For con"guration design of non-linear dynamic structures, such as crashworthiness design, a continuumbased con"guration design sensitivity analysis (DSA) and optimization methods are developed. The same transient dynamic analysis method used in Part I of this paper is employed here. The elastic}plas

Design of framed structures: an integrat
Design of framed structures: an integrated non-linear analysis and optimal minimum weight design
✍ S. Pezeshk 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 345 KB 👁 1 views

The aim of this paper is to develop a structural optimization algorithm based on optimality criterion approach to achieve a minimum weight structure that satisfies a set of displacement constraints. Optimal designs are found considering both linear and non-linear behaviour of the structure and compa

Design sensitivity and constraint approx
Design sensitivity and constraint approximation methods for optimization in non-linear analysis
✍ Valliappan, S. ;Tandjiria, V. ;Khalili, N. 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 140 KB 👁 1 views

For the ®nite element non-linear analysis of engineering problems combined with an optimization method, two techniques Ð a semi-analytical sensitivity method and bi-point constraint approximation Ð have been proposed. To validate the proposed methods, a raft foundation on a soil medium has been anal

A reduced SAND method for optimal design
A reduced SAND method for optimal design of non-linear structures
✍ Carlos E. Orozco; Omar N. Ghattas 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 426 KB 👁 2 views

An SQP-based reduced Hessian method for simultaneous analysis and design (SAND) of non-linearly behaving structures is presented and compared with conventional nested analysis and design (NAND) methods. It is shown that it is possible to decompose the SAND formulation to take advantage of the partic

Predictive optimal control for seismic a
Predictive optimal control for seismic analysis of non‐linear and hysteretic structures
✍ Huang, K.; Betti, R. 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 270 KB 👁 2 views

In this paper, an e!ective active predictive control algorithm is developed for the vibration control of non-linear hysteretic structural systems subjected to earthquake excitation. The non-linear characteristics of the structural behaviour and the e!ects of time delay in both the measurements and c