Showing papers by "Chris McMahon published in 2001"
TL;DR: In this article, the statistical distribution of the initial residual stress in shot blast bars of En15R steel are presented, and the relaxation of the residual stresses after simple tensile and cyclic tension-compression loading are measured.
73 citations
TL;DR: In this article, a feature hierarchy for body-in-white (BIW) design is proposed, comprising a principal surface to which surface, edge and transition features are added.
Abstract: This paper is concerned with the computer-aided design (CAD) representation of the pressed steel structure and outer panels of a car body-the so-called body-inwhite (BIW). In particular, it is concerned with the development of a representation that allows derivation from a single central design model of the differing viewpoints of the various engineering specialists who are involved in the design and development of the BIW. A feature-based description is used as the fundamental representation and feature models and geometric representations appropriate to different applications are derived from the feature model by adding, modifying or removing detail from the model. A feature hierarchy for BIW design is proposed, comprising a principal surface to which surface, edge and transition features are added. Viewpoint-dependent models are derived by a formal mapping approach that leads to secondary feature-models appropriate to each specialism, and which may be further mapped onto geometric representations. The ...
13 citations