Books

COMPUTATIONAL MECHANICS OF PROBABILISTIC AND RELIABILITY ANALYSIS

Edited by W.K. Liu, T. Belytschko, Elmepress 1989 (133 EUR)

With the trend towards new advanced materials and engineering designs, the need has grown for the use of engineering analyses which are more closely tied to first principles. For example, stress analyses are generally performed to determine the safety, or in other words the reliability, of a structure. However, such stress analyses generally consist simply of a linear analysis which considers a deterministic set of loads, boundary conditions, and material properties. The reliability of the structure is then estimated through safety factors or devices such as fatigue S-N tables, which are based on a considerable body of empiricism and past experience with the material and design. However, in radical new designs and materials, such a body of empiricism is often not available. It then becomes necessary to tie analysis of life expectancy more closely to the actual failure mechanism, or in other words, base the analysis on first principles.

The field of stochastic mechanics has a rich history and it has indeed reached a mature stage of development. Yet, because of the considerable computational resources which are generally needed for its application to engineering structures, it has focused on very simplified models.

The purpose of this book is to provide the background in probabilistic mechanics and the recent developments in its computational aspects, so that a practitioner can apply the methods to engineering problems. To meet needs, the book consists of two parts : 1) a tutorial on basic aspects of probabilistic mechanics and related computational methods which have proven useful, and 2) a group of advanced applications of computational probabilistic analysis which can be used directly or can serve as models for other applications.

COMPUTATIONAL ASPECTS OF CONTACT, IMPACT AND PENETRATION

Edited by R.F. Kulak, L.E. Schwer, Elmepress 1991 (133 EUR)

The text brings together the experience of leading specialists in contact, impact, and penetration mechanics. It reflects some of the current research in this field of growing interest. It reports on numerical methods and confirmatory experiments. In addition, the text presents solutions to several complex engineering problems. Thus, the text should be of interest to both researchers and practicing engineers.

This book is divided into three main parts : contact, impact, and penetration. The first section of the book deals with contact. With papers by Hu and Liu (The Application of ALE Contact Algorithms in Bulk Deformation Processes), Key and Tsay (On the Use and Implementation of an Energy Balance Equation in Explicit Transient Dynamic Analysis).

The second section of the book is concerned with impact and its effect on structures. Engelmann and Whirley (A New Explicit Shell Element Formulation for Impact Analysis), Kirkpatrick and Holmes (Static and Dynamic Buckling of Thin Cylindrical Shells), Schwer, Cheva, and Hallquist (A simple Viscoelastic Model for Energy Absorbers used in Vehicle-Barrier Impacts), Parnell and Caligiuri (Analysis of the Dynamic Response of a Buried Pipeline due to a Surface Explosion), Benson (Shock Capturing Methods in Hydrocodes), Brach (Restitution in Point Collisions), Salamon, Hassan, and Chern (Impacting Bars : Post-Impact Oscillations and Discrete Model Phenomena), Doyle and Farris (Analysis of Wave Motion in 3-D Frame Structures using Spectral Methods), Rizzi and Doyle (Force Identification for Impact of a Layered System).

The third section deals with penetration mechanics. Zukas and Kimsey (Supercomputing and Computational Penetration Mechanics), Chen and Reedy (Penetration into Geological Targets : Numerical Studies on Sliding Friction), Schulz and Heimdahl (Lagrangian Hydrocode modelling of Blunt Projectile Impacts Against Thick Plates).

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