{"id":3236,"date":"2026-03-25T07:39:58","date_gmt":"2026-03-25T07:39:58","guid":{"rendered":"https:\/\/www.materialstests.com\/?post_type=application&#038;p=3236"},"modified":"2026-03-25T08:59:42","modified_gmt":"2026-03-25T08:59:42","slug":"astm-d4595","status":"publish","type":"application","link":"https:\/\/www.materialstests.com\/lv\/application\/astm-d4595.html","title":{"rendered":"ASTM D4595"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Kas ir ASTM D4595 un k\u0101p\u0113c tam ir noz\u012bme<\/h2>\n\n\n\n<p><strong>ASTM D4595<\/strong> defin\u0113 standartiz\u0113tu metodi, lai nov\u0113rt\u0113tu <strong>\u0123eotekstiliju stiepes \u012bpa\u0161\u012bbas<\/strong> izmantojot pla\u0161u paraugu. At\u0161\u0137ir\u012bb\u0101 no testiem ar \u0161aur\u0101m sloksn\u0113m, \u0161\u012b metode samazina malu efektus, piem\u0113ram, kakli\u0146u veido\u0161anos, un sniedz rezult\u0101tus, kas lab\u0101k atspogu\u013co. <strong>re\u0101l\u0101s pasaules in\u017eenieru uzved\u012bba<\/strong>.<\/p>\n\n\n\n<p>In\u017eenieri izmanto ASTM D4595, lai ieg\u016btu galvenos parametrus, piem\u0113ram,:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Stiepes iztur\u012bba<\/strong><\/li>\n\n\n\n<li><strong>Pagarin\u0101jums p\u0101rrau\u0161anas br\u012bd\u012b<\/strong><\/li>\n\n\n\n<li><strong>S\u0101kotn\u0113jais un sekantais modulis<\/strong><\/li>\n\n\n\n<li><strong>Iztur\u012bba pret lau\u0161anu<\/strong><\/li>\n<\/ul>\n\n\n\n<p>\u0160\u012bs v\u0113rt\u012bbas atbalsta <strong>pastiprin\u0101tas grunts konstrukcijas, uzb\u0113rumi un ce\u013ci.<\/strong>, kur \u0123eotekstilijai ir j\u0101iztur stiepes spriegums.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pla\u0161a platuma sloksnes stiepes stiepes testa princips<\/h2>\n\n\n\n<p>Port\u0101ls <strong>pla\u0161a platuma sloksnes stiepes stiepes tests<\/strong> izmanto sal\u012bdzino\u0161i lielu paraugu, kas ir iesp\u012bl\u0113ts vis\u0101 t\u0101 platum\u0101 un stiepts ar nemain\u012bgu \u0101trumu l\u012bdz pl\u012bsumam.<\/p>\n\n\n\n<p>Galvenie raksturlielumi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Parauga platums samazin\u0101s <strong>lokaliz\u0113ta deform\u0101cija<\/strong><\/li>\n\n\n\n<li>Slodze vienm\u0113r\u012bg\u0101k sadal\u0101s pa \u0161\u0137iedr\u0101m.<\/li>\n\n\n\n<li>Rezult\u0101ti prec\u012bzi simul\u0113 <strong>veiktsp\u0113ja uz lauka<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Test\u0113\u0161anas laik\u0101 sist\u0113ma re\u0123istr\u0113 <strong>sp\u0113ka un pagarin\u0101juma l\u012bkne<\/strong>, kas ir visu apr\u0113\u0137in\u0101to meh\u0101nisko \u012bpa\u0161\u012bbu pamat\u0101.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0122eotekstila stiepes iztur\u012bba platum\u0101 un galvenie apr\u0113\u0137ini<\/h2>\n\n\n\n<p>Port\u0101ls <strong>\u0123eotekstila pla\u0161a platuma stiepes iztur\u012bba<\/strong> ir maksim\u0101lais sp\u0113ks uz platuma vien\u012bbu, kas vajadz\u012bgs, lai salauztu paraugu.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Stiepes iztur\u012bbas formula<\/h3>\n\n\n\n<p><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><msub><mi>\u03c3<\/mi><mi>f<\/mi><\/msub><mo>=<\/mo><mfrac><msub><mi>F<\/mi><mi>f<\/mi><\/msub><msub><mi>W<\/mi><mi>s<\/mi><\/msub><\/mfrac><\/mrow><annotation encoding=\"application\/x-tex\">\\sigma_f = \\frac{F_f}{W_s}<\/annotation><\/semantics><\/math>\u03c3f=WsFf<\/p>\n\n\n\n<p>Kur:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><em>\u03c3f<\/em> = stiepes iztur\u012bba<\/li>\n\n\n\n<li><em>Ff<\/em> = lau\u0161anas sp\u0113ks<\/li>\n\n\n\n<li><em>Ws<\/em> = parauga platums<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Pagarin\u0101juma apr\u0113\u0137ins<\/h3>\n\n\n\n<p>Pagarin\u0101jums atspogu\u013co, cik \u013coti materi\u0101ls izstiepjas pirms boj\u0101juma:<math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"block\"><semantics><mrow><mi>\u03b5<\/mi><mo>=<\/mo><mfrac><mrow><mi mathvariant=\"normal\">\u0394<\/mi><mi>L<\/mi><mo>\u00d7<\/mo><mn>100<\/mn><\/mrow><msub><mi>L<\/mi><mi>s<\/mi><\/msub><\/mfrac><\/mrow><annotation encoding=\"application\/x-tex\">\\varepsilons = \\frac{\\Delta L \\reiz 100}{L_s}<\/annotation><\/semantics><\/math>\u03b5=Ls\u0394L\u00d7100<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Modu\u013ca nov\u0113rt\u0113jums<\/h3>\n\n\n\n<p>ASTM D4595 defin\u0113 vair\u0101kus modu\u013cu veidus:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>S\u0101kotn\u0113jais modulis<\/strong> - stingr\u012bba pie agr\u012bnas slodzes<\/li>\n\n\n\n<li><strong>Nob\u012bdes modulis<\/strong> - piel\u0101gota stinguma atskaites v\u0113rt\u012bba<\/li>\n\n\n\n<li><strong>Sekanta modulis<\/strong> - st\u012bvums pie noteiktas deform\u0101cijas (piem\u0113ram, 2%, 5%, 10%).<\/li>\n<\/ul>\n\n\n\n<p>\u0160ie parametri ir \u013coti svar\u012bgi, lai <strong>konstrukcijas model\u0113\u0161ana un deform\u0101ciju prognoz\u0113\u0161ana<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">CRE stiepes test\u0113\u0161anas ma\u0161\u012bnas pras\u012bbas<\/h2>\n\n\n\n<p>A <strong><a href=\"https:\/\/www.materialstests.com\/lv\/products\/tst-01-tensile-tester.html\/\" target=\"_blank\" rel=\"noreferrer noopener\">CRE stiepes test\u0113\u0161anas iek\u0101rta<\/a> (nemain\u012bgs pagarin\u0101juma \u0101trums)<\/strong> ir b\u016btiski, lai nodro\u0161in\u0101tu atbilst\u012bbu ASTM D4595 standartam. Tas nodro\u0161ina kontrol\u0113tu un vienm\u0113r\u012bgu pagarin\u0101juma \u0101trumu, lai nodro\u0161in\u0101tu reproduc\u0113jam\u012bbu.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Galven\u0101s pras\u012bbas:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nemain\u012bgs deform\u0101cijas \u0101trums: <strong>10 \u00b1 3 %\/min<\/strong><\/li>\n\n\n\n<li>Prec\u012bza sp\u0113ka m\u0113r\u012b\u0161ana <strong>10-90% no pilnas skalas<\/strong><\/li>\n\n\n\n<li>Pareiza stiprin\u0101juma sist\u0113ma, lai izvair\u012btos no sl\u012bd\u0113\u0161anas vai \u017eok\u013cu l\u016bzumiem<\/li>\n\n\n\n<li>Sp\u0113ja uz\u0146emt <strong>sp\u0113ka un pagarin\u0101juma l\u012bknes<\/strong><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Ieteicamais apr\u012bkojums: Cell Instruments stiepes testeris<\/h2>\n\n\n\n<p>Laboratorij\u0101m, kas mekl\u0113 <strong>precizit\u0101te un efektivit\u0101te<\/strong>, Cell Instruments <strong>TST-01 <a href=\"https:\/\/www.materialstests.com\/lv\/products\/tst-01-tensile-tester.html\/\" target=\"_blank\" rel=\"noreferrer noopener\">Stiepes testeris<\/a><\/strong> pied\u0101v\u0101 uzticamu risin\u0101jumu ASTM D4595 test\u0113\u0161anai.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">K\u0101p\u0113c tas atbilst ASTM D4595 pras\u012bb\u0101m:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Stabila PLC vad\u012bba + 7\u201d HMI<\/strong> re\u0101llaika l\u012bknes vizualiz\u0101cijai<\/li>\n\n\n\n<li><strong>Pla\u0161s \u0101truma diapazons (1-500 mm\/min)<\/strong> lai atbilstu deform\u0101cijas \u0101truma pras\u012bb\u0101m<\/li>\n\n\n\n<li><strong>Augsta precizit\u0101te (0,5% FS)<\/strong> nodro\u0161ina ticamus rezult\u0101tus.<\/li>\n\n\n\n<li><strong>Piel\u0101gojami \u0137erme\u0146i<\/strong> da\u017e\u0101d\u0101m \u0123eotekstila strukt\u016br\u0101m<\/li>\n\n\n\n<li><strong>Vienm\u0113r\u012bgas kust\u012bbas sist\u0113ma<\/strong> samazina testa main\u012bgumu.<\/li>\n<\/ul>\n\n\n\n<p>T\u0101s iztur\u012bg\u0101 konstrukcija atbalsta <strong>ilgtermi\u0146a r\u016bpnieciska izmanto\u0161ana<\/strong>, t\u0101p\u0113c tas ir ide\u0101li piem\u0113rots kvalit\u0101tes kontroles laboratorij\u0101m un p\u0113tniec\u012bbas iest\u0101d\u0113m, kas str\u0101d\u0101 ar \u0123eotekstila materi\u0101liem.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Testa proced\u016bras p\u0101rskats<\/h2>\n\n\n\n<p>Tipisks ASTM D4595 tests ietver \u0161\u0101das darb\u012bbas:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Parauga sagatavo\u0161ana<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Izmantojiet platus paraugus, lai l\u012bdz minimumam samazin\u0101tu malu sarau\u0161anos.<\/li>\n\n\n\n<li>Paraugu kondicion\u0113\u0161ana kontrol\u0113t\u0101 atmosf\u0113r\u0101<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Ma\u0161\u012bnas iestat\u012b\u0161ana<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Iestatiet gabar\u012bta garumu (parasti <strong>100 mm<\/strong>)<\/li>\n\n\n\n<li>R\u016bp\u012bgi izl\u012bdziniet paraugu, lai izvair\u012btos no nepareizas slodzes.<\/li>\n\n\n\n<li>Piem\u0113rojiet minim\u0101lu iepriek\u0161\u0113ju spriegojumu (&lt;1% p\u0101rrau\u0161anas sp\u0113ka).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Test\u0113\u0161ana<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Veiciet testu l\u012bdz pl\u012bsumam<\/li>\n\n\n\n<li>Nep\u0101rtraukti re\u0123istr\u0113jiet sp\u0113ku un pagarin\u0101jumu<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Rezult\u0101tu valid\u0113\u0161ana<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Neder\u012bgu rezult\u0101tu noraid\u012b\u0161ana, ko izraisa:\n<ul class=\"wp-block-list\">\n<li>\u017dok\u013ca l\u016bzumi<\/li>\n\n\n\n<li>Pasl\u012bd\u0113\u0161ana<\/li>\n\n\n\n<li>Nenorm\u0101las novirzes<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D4595 noz\u012bme in\u017eeniertehniskajos lietojumos<\/h2>\n\n\n\n<p>ASTM D4595 ir b\u016btiska noz\u012bme:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Pastiprin\u0101tas augsnes konstrukcija<\/strong><\/li>\n\n\n\n<li><strong>Nog\u0101\u017eu stabiliz\u0101cijas sist\u0113mas<\/strong><\/li>\n\n\n\n<li><strong>Balsto\u0161o sienu pastiprin\u0101\u0161ana<\/strong><\/li>\n\n\n\n<li><strong>Ce\u013cu un ietvju projekt\u0113\u0161ana<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Sal\u012bdzinot ar \u0161aur\u0101m sloksn\u012bt\u0113m, \u0161\u012b metode nodro\u0161ina <strong>uzticam\u0101ki projekt\u0113\u0161anas parametri.<\/strong>, jo \u012bpa\u0161i attiec\u012bb\u0101 uz <strong>neaustie \u0123eotekstilmateri\u0101li<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Bie\u017e\u0101k uzdotie jaut\u0101jumi<\/h2>\n\n\n\n<p><strong>1. Ar ko ASTM D4595 at\u0161\u0137iras no stiepes stiepes testiem?<br><\/strong>ASTM D4595 izmanto pla\u0161u paraugu, kas samazina malu ietekmi un nodro\u0161ina re\u0101listisk\u0101ku stiepes iztur\u012bbas r\u0101d\u012bt\u0101ju sal\u012bdzin\u0101jum\u0101 ar testiem ar satver\u0161anas ier\u012bc\u0113m.<\/p>\n\n\n\n<p><strong>2. Vai ASTM D4595 var test\u0113t gan austos, gan neaustos \u0123eotekstilus?<br><\/strong>J\u0101, tas attiecas uz <strong>austs, neausts, sl\u0101\u0146ots un ad\u012bts \u0123eotekstils.<\/strong>.<\/p>\n\n\n\n<p><strong>3. K\u0101p\u0113c ir nepiecie\u0161ama CRE stiepes test\u0113\u0161anas iek\u0101rta?<br><\/strong>CRE sist\u0113ma nodro\u0161ina <strong>nemain\u012bgs deform\u0101cijas \u0101trums<\/strong>, kas ir \u013coti svar\u012bgi reproduc\u0113jam\u012bbai un standarta atbilst\u012bbai.<\/p>\n\n\n\n<p><strong>4. Kas izraisa neder\u012bgus testa rezult\u0101tus?<br><\/strong>Bie\u017e\u0101k sastopamie iemesli ir \u0161\u0101di. <strong>\u017eok\u013ca l\u016bzumi, izsl\u012bd\u0113\u0161ana un nepareiza parauga izl\u012bdzin\u0101\u0161ana.<\/strong>.<\/p>\n\n\n\n<p><strong>5. Vai ir at\u013cauta mitr\u0101 test\u0113\u0161ana <a href=\"https:\/\/store.astm.org\/d4595_d4595m-24.html\" target=\"_blank\" rel=\"noreferrer noopener\">ASTM D4595<\/a>?<br><\/strong>J\u0101, metode ietver proced\u016bras <strong>gan kondicion\u0113tiem (sausiem), gan mitriem paraugiem.<\/strong>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Kas ir ASTM D4595 un k\u0101p\u0113c tas ir svar\u012bgi ASTM D4595 defin\u0113 standartiz\u0113tu metodi \u0123eotekstiliju stiepes \u012bpa\u0161\u012bbu nov\u0113rt\u0113\u0161anai, izmantojot pla\u0161u paraugu. At\u0161\u0137ir\u012bb\u0101 no testiem ar \u0161aur\u0101m sloksn\u0113m \u0161\u012b metode samazina malu efektus, piem\u0113ram, kakli\u0146u veido\u0161anos, t\u0101d\u0113j\u0101di ieg\u016bstot rezult\u0101tus, kas lab\u0101k atspogu\u013co re\u0101l\u0101s in\u017eeniertehnisk\u0101s \u012bpa\u0161\u012bbas. In\u017eenieri pa\u013caujas uz ASTM D4595, lai ieg\u016btu galvenos parametrus, piem\u0113ram, [...]<\/p>","protected":false},"featured_media":3237,"parent":0,"template":"","meta":{"_acf_changed":false},"standard":[1012],"class_list":["post-3236","application","type-application","status-publish","has-post-thumbnail","hentry","standard-astm"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.materialstests.com\/lv\/wp-json\/wp\/v2\/application\/3236","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.materialstests.com\/lv\/wp-json\/wp\/v2\/application"}],"about":[{"href":"https:\/\/www.materialstests.com\/lv\/wp-json\/wp\/v2\/types\/application"}],"version-history":[{"count":0,"href":"https:\/\/www.materialstests.com\/lv\/wp-json\/wp\/v2\/application\/3236\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.materialstests.com\/lv\/wp-json\/wp\/v2\/media\/3237"}],"wp:attachment":[{"href":"https:\/\/www.materialstests.com\/lv\/wp-json\/wp\/v2\/media?parent=3236"}],"wp:term":[{"taxonomy":"standard","embeddable":true,"href":"https:\/\/www.materialstests.com\/lv\/wp-json\/wp\/v2\/standard?post=3236"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}