Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

ROPS performance during field upset and static testing.

Authors
Harris-JR; McKenzie-EA Jr.; Etherton-JR; Cantis-DM; Ronaghi-M
Source
J Agric Saf Health 2010 Jan; 16(1):5-18
NIOSHTIC No.
20036517
Abstract
Agriculture remains one of the most hazardous occupations in the U.S. By conservative estimates, tractor overturns alone claim 120 lives annually. A rollover protective structure (ROPS) and a seatbelt are a highly effective engineering safety control that can prevent many of these fatalities and reduce the severity of injuries associated with tractor overturn. SAE J2194 is a consensus performance standard established for agricultural ROPS. According to this standard, satisfactory ROPS performance can be demonstrated through static testing, field upset testing, or impact testing. A previous modeling study suggested that static testing may underpredict the strain induced in a ROPS during a field upset. In the current study, field upset testing and laboratory static testing results were compared. Field upset testing included six rear and six side upset tests performed according to SAE J2194 guidelines. Additionally, static testing was performed on a ROPS of the same model. The results support findings from the modeling study. Near the lowest sections of the ROPS, the plastic strain resulting from rear upset testing exceeded the plastic strain from static testing for 18 of 24 data points. Conversely, the ROPS plastic strain from side upset testing was typically less than plastic strain from laboratory static testing. However, data indicate that the side upset test may not be very repeatable. This study suggests that the longitudinal loading energy criterion for static testing might not be a conservative predictor of rear upset ROPS response.
Keywords
Accident-rates; Accidents; Accident-statistics; Agricultural-industry; Agricultural-workers; Agriculture; Injuries; Laboratory-testing; Occupational-accidents; Occupational-hazards; Safety-belts; Safety-engineering; Safety-equipment; Statistical-analysis Tractors; Traumatic-injuries; Author Keywords: Overturn; Rollbar; Rollover; ROPS; Tractor
Contact
CDC, NIOSH DSR, 1095 Willowdale Rd., Morgantown, WV 26505
CODEN
JASHFD
Publication Date
20100101
Document Type
Journal Article
Fiscal Year
2010
NTIS Accession No.
NTIS Price
Issue of Publication
1
ISSN
1074-7583
NIOSH Division
DSR
Source Name
Journal of Agricultural Safety and Health
State
WV
TOP