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QB/T 5215-2017 鞋后跟重复压缩性能试验方法 Test method for resistance of heel assemblies to repeated compression
本标准规定了鞋底的后跟部位抵抗垂直方向重复压缩的试验方法。<br />本标准适用于微孔材料制成的成鞋、鞋类外底和鞋底片材。...
2024-02-24 08:45:02浏览：25
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GB/T 42655-2023 连续纤维增强陶瓷基复合材料高温压缩性能试验方法
本文件规定了连续纤维增强陶瓷基复合材料高温压缩性能试验方法。
本文件适用于单向、双向和多向连续纤维增强陶瓷基复合材料沿一个主增强轴高温压缩性能的测定。
本文件也适用于双向和多向连续纤维增强陶瓷基复合材料偏轴向高温压缩性能的测定。...2023-11-10 02:00:02浏览：25
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YS/T 1132-2016 烧结金属多孔材料 压缩性能的测定 Sintered metal porous materials-Determination of compression performance
本标准规定了烧结金属多孔材料压缩性能的测定方法。<br />本标准适用于粉末冶金方法生产的烧结金属多孔材料，包括烧结金属纤维多孔材料、烧结金属粉末多孔材料及金属泡沫材料，不适用于致密金属材料。...
2023-10-12 11:36:03浏览：36
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JC/T 2406-2017 室温下连续纤维增强陶瓷基复合材料压缩性能试验方法 Test methord for compression behaviour of continuous fiber reinforced ceramic matrix composites at room temperature
本标准规定了室温下连续纤维增强陶瓷基复合材料压缩性能测试方法的术语和定义、原理、仪器、试样、试验条件、试验步骤、试验结果及数据处理和检测报告的要求。<br />本标准适用于连续纤维增强陶瓷基复合材料压缩性能的测定，非连续纤维增强陶瓷基复合材料也可参照本标准执行。...
2023-10-03 18:00:01浏览：29
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GB/T 8813-2020 硬质泡沫塑料 压缩性能的测定 Rigid cellular plastics—Determination of compression properties
本标准规定了测定如下参数的方法：<br />a）压缩强度和相对形变；或<br />b）10％相对形变时的压缩应力；和<br />c）需要时，硬质泡沫塑料的压缩模量。<br />有两种方法：<br />——方法A利用横梁位移来测定压缩性能。当需要测定10％相对形变时的压缩应力时规定使用方法A。<br />——方法B利用固定在试样上的应变测量装置（接触式引伸计）或相似装置直接测量试样形变。当需要测定压缩模量时规定使用方法B。<br />注：方法A和方法B均可测定（在最大负荷时的）压缩强度。...
2023-07-26 04:00:01浏览：72
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ASTM D8285/D8285M-2019 用夹层结构长梁弯曲法测定聚合物基复合材料层合板锥形和阶梯形接头压缩性能的规程 Standard Practice for Compressive Properties of Tapered and Stepped Joints of Polymer Matrix Composite Laminates by Sandwich Construction Long Beam Flexure
<div class="SectionLevel2"> <p class="subsec1 cdone2"><span class="Head3 cdone">1.1</span> This practice covers the procedure for determination of the compressive strength of a tapered or stepped bonded joint of polymer matrix composite materials. It is applicable to secondary bonded or co-bonded laminates with either unidirectional plies or woven fabric reinforcements. The materials to be bonded may be different systems. In the bondline, a separate adhesive material may or may not be used (example: adhesives may be used with a prepreg system or may not be used with a wet lay-up repair system). The range of acceptable test laminates and thicknesses are described in <span class="Body-link1 cdone">8.2.7</span>. The standard repair types are the same as for the tensile loading in Practice <span class="Body-link1 cdone">D8131/D8131M</span>. While external patch repairs are not explicitly covered in this practice, these repairs could be tested as a non-standard specimen using this practice.</p></div> <div class="SectionLevel2"> <p class="subsec1 cdone2"><span class="Head3 cdone">1.2</span> This practice supplements Test Method <span class="Body-link1 cdone">D7249/D7249M</span> for compressive loading of facesheet sandwich constructions by long beam flexure. Several important test specimen parameters (for example, joint length, ply overlaps, step depth, and taper ratio) are not mandated by this practice; however, these parameters are required to be specified and reported to support repeatable results.</p></div> <div class="SectionLevel2"> <p class="subsec1 cdone2"><span class="Head3 cdone">1.3</span> Unidirectional (0° ply orientation) composites as well as multi-directional composite laminates and fabric composites, can be tested.</p></div> <div class="SectionLevel2"> <p class="subsec1 cdone2"><span class="Head3 cdone">1.4</span> <span class="Head3Title cdone">Units—</span>The values stated in either SI units or inch-pound units...
2023-06-08 22:36:01浏览：29
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辐照交联聚烯烃/NR热塑性弹性体发泡材料辐照效应的研究
研究了辐射交联聚烯烃/NR热塑性弹性体发泡材料的辐照效应以及辐照对于泡沫材料性能的影响.凝胶含量的测试表明:发泡体系的交联度随辐照剂量的增加而逐渐增加,但是过大的辐照剂量(＞60kGy)不利于辐射交联聚烯烃/NR热塑性弹性体泡沫材料的发泡;随着辐照剂量的增大,材料的表观密度和压缩性能增加.SEM研究表明:随辐照剂量的增加,材料的微观泡孔尺寸变小.DSC研究表明,辐照剂量的提高有利于混合材料耐热性能的提高.傅立叶红外光谱(IR)的研究表明,辐照剂量影响发泡材料的微观结构,辐照剂量的增大使材料内部发生降解反应....
2020-08-11 22:29:03浏览：43
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