Grinding With Abrasive Disks: Part 1—Test Procedures and Performance Criteria

1962 ◽  
Vol 84 (4) ◽  
pp. 431-441 ◽  
Author(s):  
W. A. Mohun
Keyword(s):  
Performance Criteria ◽  
Test Procedures ◽  
Cutting Rate ◽  
And Performance ◽  
Effective Life

Equipment and procedures for test grinding abrasive disks and for coating such disks in the laboratory are described. Criteria useful in evaluating performance are defined and discussed. Discard criteria for worn disks are analyzed and the suggestion made that the effective life of the disk ends when the cutting rate is some specified percentage of its initial cutting rate. This paper is the first of a series dealing with the mechanism of the cutting action of abrasive disks.

scholarly journals Development of test procedures and performance criteria to improve compatibility in car frontal collisions

2003 ◽  
Vol 217 (4) ◽  
pp. 233-245 ◽  
Author(s):  
M J Edwards ◽  
H Davies ◽  
A Thompson ◽  
A Hobbs
Keyword(s):  
Cell Wall ◽  
Load Cell ◽  
Performance Criteria ◽  
Passenger Compartment ◽  
Test Procedures ◽  
Structural Interaction ◽  
Research Activities ◽  
Initial Work ◽  
And Performance ◽  
Frontal Collisions

Compatibility is now generally recognized as the next big step forwards for car occupant secondary safety. The work performed to date has focused on the structural performance of vehicles, with the aim of providing a safe environment for the protection of the occupants in which intelligent restraint systems of the future could operate. This paper outlines the present understanding of compatibility for frontal impact collisions and reports the current state of development of three possible test procedures to address the fundamental issues, namely structural interaction, frontal stiffness matching and passenger compartment strength. Recent advances in the development of a deformable barrier face for the full-width test to assess structural interaction, using high-resolution load cell wall measurements, are described. Analysis of the load cell wall data collected in EuroNCAP tests, to address the frontal stiffness problem, is reported together with initial work to investigate the repeatability of the passenger compartment strength test. In addition, for some of these tests, possible performance criteria are suggested. This research is being carried out in co-operation with the European Enhanced Vehicle-safety Committee and the International Harmonization of Research Activities Working Groups and is funded by the Department for Transport.

Sign in / Sign up

Export Citation Format

Share Document