PROGRAM BASIC UNTUK PENENTUAN BATAS ELASTIS KEKUATAN LENTUR STATIS

Main Author: Kamasudirdja, Suparman
Other Authors: pusat litbang hasil hutan
Format: Article info application/pdf eJournal
Bahasa: ind
Terbitan: Pusat Penelitian dan Pengembangan Hasil Hutan , 2017
Online Access: http://ejournal.forda-mof.org/ejournal-litbang/index.php/JPHH/article/view/3309
http://ejournal.forda-mof.org/ejournal-litbang/index.php/JPHH/article/view/3309/2781
ctrlnum --ejournal.forda-mof.org-ejournal-litbang-index.php-index-oai:article-3309
fullrecord <?xml version="1.0"?> <dc schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><title lang="id-ID">PROGRAM BASIC UNTUK PENENTUAN BATAS ELASTIS KEKUATAN LENTUR STATIS</title><creator>Kamasudirdja, Suparman</creator><subject lang="id-ID"/><description lang="id-ID">One of&#xA0; the procedures&#xA0; for&#xA0; determining the elastic&#xA0; limit&#xA0; in static&#xA0; bending&#xA0; test&#xA0; is through&#xA0; eye&#xA0; fitting&#xA0; of&#xA0; a&#xA0; successive load-deflection&#xA0;&#xA0; reading&#xA0; with&#xA0; a&#xA0; straight&#xA0; line&#xA0; on&#xA0; a&#xA0; graph paper.&#xA0;&#xA0; The&#xA0; procedure&#xA0;&#xA0; is simple&#xA0; and&#xA0; does&#xA0; not&#xA0; require&#xA0; elaborate apparatus. Consequently, it&#xA0; is still&#xA0; applied&#xA0; in&#xA0; many&#xA0; testing&#xA0; laboratories.&#xA0; The&#xA0; above&#xA0; procedure&#xA0;&#xA0; however, contains&#xA0; some weakness,&#xA0;&#xA0; namely&#xA0; it&#xA0; is laborious,&#xA0; time&#xA0; consuming,&#xA0; subjective&#xA0;&#xA0; and&#xA0; is&#xA0; inconsistent&#xA0;&#xA0; within&#xA0;&#xA0; the same&#xA0; and among&#xA0; different plotters.An&#xA0; attempt&#xA0; was made&#xA0; by&#xA0; the author&#xA0; to use cheap personal pocket&#xA0;&#xA0; computer&#xA0; for finding&#xA0; the elastic limit of load and deflection,&#xA0;&#xA0; and&#xA0; hence&#xA0; also&#xA0; the&#xA0; corresponding&#xA0;&#xA0; modulus&#xA0; of&#xA0; elasticity&#xA0; and&#xA0; bending- strength&#xA0; within&#xA0; elastic&#xA0; limit.&#xA0; The&#xA0; basic programme&#xA0;&#xA0; prepared&#xA0; by&#xA0; the author,&#xA0; whenever&#xA0; needed&#xA0; can be used also for&#xA0; converting&#xA0; the observed&#xA0; load/deflection data into&#xA0; calibrated&#xA0; values or other&#xA0; measurement&#xA0; units.&#xA0; This could&#xA0; be done for example&#xA0; after data checking,&#xA0; or debugging step by&#xA0; inserting a jump&#xA0; command&#xA0; to a specific&#xA0; sub-routine&#xA0;&#xA0; which&#xA0; will handle specific&#xA0; computation</description><publisher lang="id-ID">Pusat Penelitian dan Pengembangan Hasil Hutan</publisher><contributor lang="id-ID">pusat litbang hasil hutan</contributor><date>2017-08-18</date><type>Journal:Article</type><type>Other:info:eu-repo/semantics/publishedVersion</type><type>Other:</type><type>Other:</type><type>File:application/pdf</type><identifier>http://ejournal.forda-mof.org/ejournal-litbang/index.php/JPHH/article/view/3309</identifier><identifier>10.20886/jphh.1988.5.4.196-202</identifier><source lang="en-US">Journal of Forest Products Research; Vol 5, No 4 (1988): Jurnal Penelitian Hasil Hutan; 196-202</source><source lang="id-ID">Jurnal Penelitian Hasil Hutan; Vol 5, No 4 (1988): Jurnal Penelitian Hasil Hutan; 196-202</source><source>2442-8957</source><source>0216-4329</source><language>ind</language><relation>http://ejournal.forda-mof.org/ejournal-litbang/index.php/JPHH/article/view/3309/2781</relation><rights lang="id-ID">##submission.copyrightStatement##</rights><rights lang="id-ID">http://creativecommons.org/licenses/by-nc-sa/4.0</rights><recordID>--ejournal.forda-mof.org-ejournal-litbang-index.php-index-oai:article-3309</recordID></dc>
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author Kamasudirdja, Suparman
author2 pusat litbang hasil hutan
title PROGRAM BASIC UNTUK PENENTUAN BATAS ELASTIS KEKUATAN LENTUR STATIS
publisher Pusat Penelitian dan Pengembangan Hasil Hutan
publishDate 2017
url http://ejournal.forda-mof.org/ejournal-litbang/index.php/JPHH/article/view/3309
http://ejournal.forda-mof.org/ejournal-litbang/index.php/JPHH/article/view/3309/2781
contents One of the procedures for determining the elastic limit in static bending test is through eye fitting of a successive load-deflection reading with a straight line on a graph paper. The procedure is simple and does not require elaborate apparatus. Consequently, it is still applied in many testing laboratories. The above procedure however, contains some weakness, namely it is laborious, time consuming, subjective and is inconsistent within the same and among different plotters.An attempt was made by the author to use cheap personal pocket computer for finding the elastic limit of load and deflection, and hence also the corresponding modulus of elasticity and bending- strength within elastic limit. The basic programme prepared by the author, whenever needed can be used also for converting the observed load/deflection data into calibrated values or other measurement units. This could be done for example after data checking, or debugging step by inserting a jump command to a specific sub-routine which will handle specific computation
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