ASTM G115 PDF

ASTM G – Free download as PDF File .pdf), Text File .txt) or read online for free. ASTM G 2. Referenced Documents ASTM Standards: B Test Method for Dynamic Coefficient of Friction and. Wear of Sintered Metal Friction Materials Under Dry. ASTM G Standard Guide for Measuring and Reporting Friction Coefficients.

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Each triboelementcontains one or more tribosurfaces. Standard Costing Jul 25, Blocking is a term used to describe thetendency of some plastic materials to stick to each other afterlong periods of contact.

These databases can be searched for material couples andtribosystems of interest. We Need Your Support. Any of the listed tests or other acceptedtests may be used.

It is hoped that the use of auniform reporting format will provide the basis for the prepa-ration of handbooks and computerized databases. Plasticizer migration can be the cause. Thank you for visiting our website and your interest in our free products and services. We are always happy to assist you. Summary of Guide 4. A number in parentheses indicates the year of last reapproval.

ASTM G115-10.pdf

Current edition approved October 10, To the running of this website, we need your help to support us. The overall goal of this guide is to provide a reporting formatthat will enable computer databases to be readily established.

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It is hoped that the use of a uniform reporting format will g15 the basis for the preparation of handbooks and computerized databases. Friction Wear Force Abrasive Shoe.

ASTM G – 10() Standard Guide for Measuring and Reporting Friction Coefficients

Link to Active This link will always route to the current Active version of the standard. The usual manifestation is a cycling decrease andsubsequent increase in the friction force as sliding proceeds Fig. G 40— 93 3. Other important factors to simulate arenormal force contact pressurevelocity, type of motion reciprocating versus unidirectional and environment.

Their use will significantly reduce the need for each laboratory to do its own testing. Test surfaces that are prone to blocking or interlock-ing of surface features are particularly prone to showing abreakaway force spike.

We are nonprofit website to share and download documents. Last previous edition G – 93 e 1. When pulling a steelcable over the same roll, it would be more appropriate to use astiff testing system.

If an application involves materialssuch as friction composites, one of the brake type dynamom-eter tests may be appropriate. Historical Version s – view previous versions of standard.

The use of the suggested reporting form will increase the long-term usefulness of the test results within a given laboratory and will facilitate the exchange of test results between laboratories.

G 40 — The appropriate device to use is the onethat closely simulates a tribosystem of interest. Originallypublished as G – A superscript epsilon e indicates an editorial change since the last revision or reapproval. No other units of measurement are included in this standard.

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Standard – Standard Guide for Measuring and Reporting Friction Coefficients ASTM G –

These databases can be searched for material couples and tribosystems of interest. Weartest machines are often equipped g151 sensors to measurefriction forces also. April Current version: All materials on our website are shared by users.

Sufficient information on test conditions will be available to determine applicability of the friction data to the engineer’s specific needs.

This guide is intended to promote the use of thisstandard reporting system and standard friction test methods. General friction testing precautions are citedand a prescribed method of recording friction data is recom-mended. In addition, elastic beams containing straingages may produce different friction responses than a more rigid load celleven if used on the same friction testing machine.

In this case an elastic frictionmeasuring system would be appropriate. Requirements for minimum data and a format for present-ing these data are suggested.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

This breakaway force is commonlyused to calculate static friction Fig.