{"id":582,"date":"2026-02-26T03:18:24","date_gmt":"2026-02-26T03:18:24","guid":{"rendered":"https:\/\/www.teartester.com\/?post_type=method&#038;p=582"},"modified":"2026-02-27T09:04:20","modified_gmt":"2026-02-27T09:04:20","slug":"trapezoidal-tear-test","status":"publish","type":"method","link":"https:\/\/www.teartester.com\/vi\/method\/trapezoidal-tear-test\/","title":{"rendered":"Th\u1eed nghi\u1ec7m x\u00e9 h\u00ecnh thang"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Th\u1eed nghi\u1ec7m r\u00e1ch h\u00ecnh thang l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0110\u1ed9 b\u1ec1n r\u00e1ch h\u00ecnh thang<\/strong> Thu\u1eadt ng\u1eef n\u00e0y \u0111\u1ec1 c\u1eadp \u0111\u1ebfn kh\u1ea3 n\u0103ng ch\u1ed1ng r\u00e1ch c\u1ee7a v\u1eadt li\u1ec7u khi c\u00f3 l\u1ef1c t\u00e1c \u0111\u1ed9ng d\u1ecdc theo m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn c\u1ee5 th\u1ec3, \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u theo h\u00ecnh thang. Th\u1eed nghi\u1ec7m n\u00e0y \u0111o l\u01b0\u1eddng l\u1ef1c c\u1ea7n thi\u1ebft \u0111\u1ec3 t\u1ea1o ra v\u1ebft r\u00e1ch lan r\u1ed9ng d\u1ecdc theo khu v\u1ef1c h\u00ecnh thang \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u tr\u00ean m\u1eabu th\u1eed, m\u00f4 ph\u1ecfng hi\u1ec7u su\u1ea5t c\u1ee7a v\u1eadt li\u1ec7u khi ch\u1ecbu \u1ee9ng su\u1ea5t trong \u0111i\u1ec1u ki\u1ec7n th\u1ef1c t\u1ebf. H\u00ecnh thang \u0111\u1ea3m b\u1ea3o r\u1eb1ng v\u1eadt li\u1ec7u b\u1ecb r\u00e1ch theo c\u00e1ch c\u00f3 ki\u1ec3m so\u00e1t v\u00e0 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c, cung c\u1ea5p d\u1eef li\u1ec7u qu\u00fd gi\u00e1 v\u1ec1 <strong>kh\u1ea3 n\u0103ng ch\u1ed1ng r\u00e1ch<\/strong> v\u00e0 <strong>\u0111\u1ed9 b\u1ec1n<\/strong>.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"355\" height=\"400\" data-id=\"587\" src=\"https:\/\/www.teartester.com\/wp-content\/uploads\/2026\/02\/Trapezoidal-Tear-Test-for-Geotextiles-and-Fabric-Materials.webp\" alt=\"Th\u1eed nghi\u1ec7m x\u00e9 h\u00ecnh thang \u0111\u1ed1i v\u1edbi v\u1ea3i \u0111\u1ecba k\u1ef9 thu\u1eadt v\u00e0 v\u1eadt li\u1ec7u d\u1ec7t\" class=\"wp-image-587\" srcset=\"https:\/\/www.teartester.com\/wp-content\/uploads\/2026\/02\/Trapezoidal-Tear-Test-for-Geotextiles-and-Fabric-Materials.webp 355w, https:\/\/www.teartester.com\/wp-content\/uploads\/2026\/02\/Trapezoidal-Tear-Test-for-Geotextiles-and-Fabric-Materials-266x300.webp 266w\" sizes=\"(max-width: 355px) 100vw, 355px\" \/><\/figure>\n<\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading\">Thi\u1ebft b\u1ecb th\u1eed nghi\u1ec7m \u0111\u1ed9 r\u00e1ch h\u00ecnh thang<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>m\u00e1y th\u1eed k\u00e9o<\/strong> l\u00e0 thi\u1ebft b\u1ecb ch\u00ednh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 th\u1ef1c hi\u1ec7n <strong>Th\u1eed nghi\u1ec7m r\u00e1ch h\u00ecnh thang<\/strong>. M\u00e1y n\u00e0y t\u00e1c d\u1ee5ng m\u1ed9t l\u1ef1c \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n l\u00ean m\u1eabu th\u1eed \u2013 c\u00f3 m\u1ed9t v\u1ebft c\u1eaft h\u00ecnh thang \u1edf ch\u00ednh gi\u1eefa \u2013 cho \u0111\u1ebfn khi v\u1eadt li\u1ec7u b\u1ecb r\u00e1ch. M\u00e1y ghi l\u1ea1i l\u1ef1c c\u1ea7n thi\u1ebft \u0111\u1ec3 v\u1ebft r\u00e1ch lan r\u1ed9ng, t\u1eeb \u0111\u00f3 cung c\u1ea5p d\u1eef li\u1ec7u quan tr\u1ecdng v\u1ec1 t\u00ednh ch\u1ea5t c\u1ee7a v\u1eadt li\u1ec7u <strong>\u0111\u1ed9 b\u1ec1n k\u00e9o<\/strong>.<\/p>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c t\u00ednh n\u0103ng ch\u00ednh:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>C\u1ea3m bi\u1ebfn l\u1ef1c:<\/strong> \u0110o l\u1ef1c t\u00e1c d\u1ee5ng l\u00ean m\u1eabu th\u1eed trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m.<\/li>\n\n\n\n<li><strong>\u0110i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 bi\u1ebfn thi\u00ean:<\/strong> \u0110\u1ea3m b\u1ea3o ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c t\u1ed1c \u0111\u1ed9 k\u00e9o d\u00e0i \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m ti\u00eau chu\u1ea9n (th\u01b0\u1eddng l\u00e0 5,00 \u00b1 0,2 mm\/s).<\/li>\n\n\n\n<li><strong>Bi\u1ec3u \u0111\u1ed3 hay m\u00e0n h\u00ecnh k\u1ef9 thu\u1eadt s\u1ed1:<\/strong> \u0110\u1ec3 tr\u00ecnh b\u00e0y \u0111\u1ed3 th\u1ecb d\u1eef li\u1ec7u v\u1ec1 m\u1ed1i quan h\u1ec7 gi\u1eefa l\u1ef1c v\u00e0 \u0111\u1ed9 gi\u00e3n d\u00e0i ho\u1eb7c gi\u1eefa l\u1ef1c v\u00e0 \u0111\u1ed9 d\u1ecbch chuy\u1ec3n.<\/li>\n\n\n\n<li><strong>Thi\u1ebft k\u1ebf k\u1eb9p ch\u00ednh x\u00e1c:<\/strong> M\u00e1y ph\u1ea3i \u0111\u01b0\u1ee3c trang b\u1ecb c\u00e1c k\u1eb9p ch\u1eafc ch\u1eafn v\u00e0 c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ec3 gi\u1eef ch\u1eb7t m\u1eabu h\u00ecnh thang trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Nh\u1eefng l\u1ee3i \u00edch ch\u00ednh c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m r\u00e1ch h\u00ecnh thang<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1i <strong>Th\u1eed nghi\u1ec7m r\u00e1ch h\u00ecnh thang<\/strong> cung c\u1ea5p nh\u1eefng th\u00f4ng tin h\u1eefu \u00edch v\u1ec1 v\u1eadt li\u1ec7u <strong>kh\u1ea3 n\u0103ng ch\u1ed1ng r\u00e1ch<\/strong> v\u00e0 <strong>\u0111\u1ed9 b\u1ec1n<\/strong>, v\u1ed1n \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c d\u1ef1 \u0111o\u00e1n hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c v\u1eadt li\u1ec7u n\u00e0y khi ch\u1ecbu t\u1ea3i ho\u1eb7c sau th\u1eddi gian s\u1eed d\u1ee5ng k\u00e9o d\u00e0i. Th\u1eed nghi\u1ec7m n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i \u0111\u1ec3 <strong>v\u1ea3i \u0111\u1ecba k\u1ef9 thu\u1eadt<\/strong>, <strong>v\u1ea3i<\/strong>, v\u00e0 <strong>m\u00e0ng nh\u1ef1a<\/strong>, n\u01a1i kh\u1ea3 n\u0103ng ch\u1ed1ng r\u00e1ch c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn hi\u1ec7u qu\u1ea3 c\u1ee7a v\u1eadt li\u1ec7u trong c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t s\u1ed1 l\u1ee3i \u00edch ch\u00ednh c\u1ee7a b\u00e0i ki\u1ec3m tra bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>D\u1ef1 \u0111o\u00e1n hi\u1ec7u su\u1ea5t v\u1eadt li\u1ec7u<\/strong>: B\u1eb1ng c\u00e1ch m\u00f4 ph\u1ecfng qu\u00e1 tr\u00ecnh lan truy\u1ec1n v\u1ebft n\u1ee9t, th\u1eed nghi\u1ec7m n\u00e0y gi\u00fap c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t d\u1ef1 \u0111o\u00e1n c\u00e1ch v\u1eadt li\u1ec7u s\u1ebd ph\u1ea3n \u1ee9ng khi ph\u1ea3i ch\u1ecbu t\u00e1c \u0111\u1ed9ng c\u1ee7a \u1ee9ng su\u1ea5t c\u01a1 h\u1ecdc, m\u00e0i m\u00f2n v\u00e0 qu\u00e1 tr\u00ecnh l\u00e3o h\u00f3a.<\/li>\n\n\n\n<li><strong>K\u1ef3 thi chu\u1ea9n h\u00f3a<\/strong>: <strong>Ti\u00eau chu\u1ea9n ASTM<\/strong> \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n v\u00e0 ch\u00ednh x\u00e1c c\u1ee7a k\u1ebft qu\u1ea3, gi\u00fap vi\u1ec7c so s\u00e1nh c\u00e1c v\u1eadt li\u1ec7u t\u1eeb c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t ho\u1eb7c c\u00e1c l\u00f4 kh\u00e1c nhau tr\u1edf n\u00ean d\u1ec5 d\u00e0ng h\u01a1n.<\/li>\n\n\n\n<li><strong>Ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng<\/strong>: Th\u1eed nghi\u1ec7m n\u00e0y gi\u00fap ph\u00e1t hi\u1ec7n c\u00e1c \u0111i\u1ec3m y\u1ebfu ti\u1ec1m \u1ea9n trong v\u1eadt li\u1ec7u, \u0111\u1ea3m b\u1ea3o r\u1eb1ng s\u1ea3n ph\u1ea9m \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt y\u00eau c\u1ea7u v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng d\u1ef1 ki\u1ebfn.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Ti\u00eau chu\u1ea9n v\u00e0 ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n r\u00e1ch h\u00ecnh thang tu\u00e2n theo m\u1ed9t s\u1ed1 ti\u00eau chu\u1ea9n nh\u1eb1m \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 nh\u1ea5t qu\u00e1n v\u00e0 \u0111\u00e1ng tin c\u1eady gi\u1eefa c\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m v\u00e0 c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p. C\u00e1c ti\u00eau chu\u1ea9n n\u00e0y bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/store.astm.org\/d7510-10r16e01.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">ASTM D751<\/a>: Ti\u00eau chu\u1ea9n n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111o \u0111\u1ed9 b\u1ec1n r\u00e1ch c\u1ee7a v\u1ea3i, bao g\u1ed3m c\u1ea3 c\u00e1c lo\u1ea1i v\u1ea3i d\u00f9ng l\u00e0m v\u1ea3i \u0111\u1ecba k\u1ef9 thu\u1eadt v\u00e0 v\u1ea3i tr\u00e1ng ph\u1ee7. Ti\u00eau chu\u1ea9n n\u00e0y \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c \u0111\u00e1nh gi\u00e1 c\u00e1c v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111\u00f3ng g\u00f3i v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p.<\/li>\n\n\n\n<li><a href=\"https:\/\/store.astm.org\/d5587-15r24.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">ASTM D5587<\/a>: Ti\u00eau chu\u1ea9n n\u00e0y ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho v\u1ea3i \u0111\u1ecba k\u1ef9 thu\u1eadt v\u00e0 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u1ea5u tr\u00fac \u0111\u1eb7c th\u00f9 c\u1ee7a c\u00e1c v\u1eadt li\u1ec7u n\u00e0y. Ti\u00eau chu\u1ea9n s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p th\u1eed r\u00e1ch h\u00ecnh thang \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 hi\u1ec7u su\u1ea5t c\u1ee7a ch\u00fang trong c\u00e1c \u1ee9ng d\u1ee5ng v\u1ec1 c\u00f4ng tr\u00ecnh d\u00e2n d\u1ee5ng, l\u1ecdc v\u00e0 gia c\u1ed1.<\/li>\n\n\n\n<li><a href=\"https:\/\/store.astm.org\/d4533_d4533m-15r23.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">ASTM D4533<\/a>: T\u01b0\u01a1ng t\u1ef1 nh\u01b0 ti\u00eau chu\u1ea9n ASTM D5587 nh\u01b0ng c\u00f3 ph\u1ea1m vi \u00e1p d\u1ee5ng r\u1ed9ng h\u01a1n, ti\u00eau chu\u1ea9n ASTM D4533 \u00e1p d\u1ee5ng cho c\u00e1c lo\u1ea1i v\u1ea3i \u0111\u1ecba k\u1ef9 thu\u1eadt d\u1ec7t v\u00e0 kh\u00f4ng d\u1ec7t. Ti\u00eau chu\u1ea9n n\u00e0y \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ef1c c\u01a1 h\u1ecdc v\u00e0 ch\u1ed1ng r\u00e1ch c\u1ee7a v\u1eadt li\u1ec7u.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"featured_media":0,"parent":0,"template":"","meta":{"_acf_changed":true},"class_list":["post-582","method","type-method","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.teartester.com\/vi\/wp-json\/wp\/v2\/method\/582","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.teartester.com\/vi\/wp-json\/wp\/v2\/method"}],"about":[{"href":"https:\/\/www.teartester.com\/vi\/wp-json\/wp\/v2\/types\/method"}],"wp:attachment":[{"href":"https:\/\/www.teartester.com\/vi\/wp-json\/wp\/v2\/media?parent=582"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}