This recommended practice provides a procedure for measuring quantitatively the physical characteristics of linear impactors that are believed to effect impact test accuracy, repeatability, and reproducibility. Suggested values and tolerance are also provided for specific applications of linear impactor testing (i.e. Ejection Mitigation tests, Head form Impact tests, Body Block tests). Two functional groups of linear impactors are considered, those whose function is related primarily to displacement and those related to measuring acceleration or force.
Rationale
Linear impactor tests have been used for decades to create dynamic performance data of occupant protection materials and safety systems. This data is generally used for comparative purposes, to compute energy management capability, and as input to mathematical models and computer simulations. There are also examples of linear impact tests used for vehicle component certification such as the FMVSS 226 Ejection Mitigation test used by NHTSA.
Linear impactor test result variability is a problem that can be traced to many sources. One source of variability in the FMVSS 226 linear impactor test is associated with the characteristics of the impactor itself. A calibration procedure for the linear impactor is needed to reduce the variability associated with it.
This document establishes a standard for linear impactor performance that will ensure a level of test accuracy, repeatability, and reproducibility. No such standard exists today, resulting in a complete lack of these elements among the various laboratories and institutions that regularly utilize linear impact test methods.
The function of the SAE Impact and Rollover Test Procedures Standards Committee is to coordinate test procedures as used, or proposed, by various test conducting organizations. Such organization(s) may be a vehicle manufacturer, NHTSA, a non-manufacturer doing test work under contract, or individuals, who have reason to test or to demonstrate vehicle performance under specific test conditions. The committee is charged with keeping test procedure standards current. This means applicable to newer model vehicles, and in light of advances in test techniques or instrumentation. The committee does not establish or monitor vehicle or component performance levels based on SAE Procedure Standards.
* Redlines comparisons are available for those standards
listed in the Revision History that contain a radio button. A
redline comparison of the current version against a revision is
accomplished by selecting the radio button next to the standard and
then selecting 'compare'. At this time, Redline versions only exist
for some AMS standards. SAE will continue to add redline versioning
with ongoing updates to SAE MOBILUS.
View/Annotate
Content Loading, Please Wait
Document Preview
Content Loading, Please Wait
Document Comparison
Content Loading, Please Wait
Download
A list of downloadable items.
Product Code
Document Title
File Type
Download
J3095_201606
Linear Impactor Calibration Procedure
Export Metadata
This modal will allow the user to download citation information or export specific fields of data into one of three file formats: Excel, comma-separated values, or text.
You are currently not logged into your Dashboard account, which is required for annotating.
Please select Login to login or register for the Dashboard. Select Continue to view the content without the ability to annotate.
Redline Warning
You are currently not logged into your Dashboard account, which is required for annotating.
Please select Login to login or register for the Dashboard. Select Continue to view the content without the ability to annotate.
Data Set Warning
Linear Impactor Calibration Procedure
SAE Journal Subscriptions are available in a variety of options, which include electronic, electronic with back file, and archive. For detailed information and options, please complete the following:
Content Request
Check My Access!
You may already have access to the Ground Vehicle Standard, Linear Impactor Calibration Procedure
Subscription Access
If you have Subscription Access with a username and password, please login below.
Institutional Login
If you have Institutional Access to SAE MOBILUS, using a predetermined organizational login utilizing single-sign-on (Shibboleth), please login below. To request institutional access to SAE MOBILUS, please complete the institutional subscription information form.
Purchase
If you do not have access to SAE MOBILUS via username/password or institutional access, you can still purchase the Ground Vehicle Standard, Linear Impactor Calibration Procedure.
Search Tips: Search Operators:AND, OR, NOT; Wild Cards; Using Quotes
SAE MOBILUS® Search Tips
Please note: All terms not contained within quotes, will be evaluated using the OR operator. This means that your search results will contain all results that contain ANY of the entered terms.
AND, OR, NOT
SAE MOBILUS supports the use of the AND, OR and NOT BOOLEAN operators ONLY function with the Advanced Search.
Wild Cards
Using the asterisk, ( * ) allows you to search for a partial word. For example, entering a keyword search of aero* will search for any word beginning with aero.
Using the question mark, ( ? ) allows you to search for a word with a single character wildcard. For example, searching for t?re would match both tire and tyre
Using Quotes
Words in double quotes " " are treated as a phrase. Conducting a search for "heat model" will return all results in which the exact phrase "heat model" is found, while "heat modeling" would NOT be included.
A term combined with a phrase will be joined with an OR operator.
Searching for Standards
When searching for a standard please use the entire Document Number assigned, which includes the abbreviation. A space can be used, or omitted between the abbreviation and number.