DENTING AND FRACTURE OF SHEET STEEL BY BLUNT AND SHARP OBSTACLES IN GLANCING COLLISIONS

The different types of denting, scoring and fracture that occur in "glancing collisions" between sheet steel and blunt or sharp obstacles, have been investigated. These collisions have a component of motion along the surface of the sheet or plating as well as perpendicular to it, and are to be distinguished from the usual sort of penetration/perforation problem. Crack initiation for blunt obstacles occurs by in-plane stretching and the biaxially dependent in-plane fracture strain pairs are well described by the fracture-forming limit diagram. Crack initiation for sharp obstacles is less easy to put in terms of critical strains, owing to the highly localised deformation regions. For both types of obstacles, crack propagation is modelled successfully using rigid-plastic fracture mechanics. Applications to ship grounding and motor vehicle crashworthiness are discussed. (A)

Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/0734743X
Corporate Authors:
Elsevier

The Boulevard, Langford Lane
Kidlington, Oxford United Kingdom OX5 1GB
Authors:
- MUSCAT-FENECH, C M
- ATKINS, A G
Publication Date: 1998-8

Language

English

Media Info

Features: References;
Pagination: p. 499-519
Serial:
- International Journal of Impact Engineering
- Volume: 21
- Issue Number: 7
- Publisher: Elsevier
- ISSN: 0734-743X
- Serial URL: https://www.sciencedirect.com/journal/international-journal-of-impact-engineering

Subject/Index Terms

TRT Terms: Crashes; Deformation; Mathematical analysis; Motor vehicle bodies; Sheet metal; Simulation; Steel; Vehicles
ITRD Terms: 6471: Analysis (math); 1356: Body (car); 1631: Collision; 5595: Deformation; 4552: Sheet (metal); 9103: Simulation; 4542: Steel; 1255: Vehicle
Subject Areas: Vehicles and Equipment;

Filing Info

Accession Number: 00753068
Record Type: Publication
Source Agency: Transport Research Laboratory
Files: ITRD
Created Date: Sep 28 1998 12:00AM