ASTM D638标准是美国材料和试验协会制定的一项应变拉伸试验标准,适用于测量塑料和增强塑料的力学性能。该标准规定了试验样品制备、试验条件和试验方法等方面的具体要求,以确保试验结果的准确性和可重复性。 1.试验样品制备 ASTM D638标准规定了两种不同类型的试验样品:标准试样...
ASTM D638是塑料拉伸性能的标准试验方法。以下是其主要内容: 1. **适用范围**: - 适用于在规定的预处理、温度、湿度和试验机速度等条件下,测试未增强型和增强型塑料的标准哑铃形试样的拉伸性能。适用于厚度不超过0.55英寸(14毫米)的试验材料;对于薄片或薄膜(厚度小于1.0毫米),另有试验...
Note 2—A complete metric companion to Test Method D 638 has been developed—D638M. Note 3—This test method is not intended to cover precise physical procedures. It is recognized that the constant-rate-of-cross-head-movement type of test leaves much to be desired form a theoretical ...
Are polymer matrix composites tested according to ASTM D638? Long fiber reinforced plastics such as GRC or CRC are measured in the tensile test to ASTM D3039. These materials can have very different properties depending on the direction and structure of the laminate or fabric. They, ...
1. The Type IV specimen shall be used for testing nonrigid plastics with a thickness of 4 mm (0.16 in.) or less. The Type III specimen must be used for all materials with a thickness greater than 7 mm (0.28 in.) but not D 638 Specimen Dimensions for Thickness, T, mm (in.)A 7...
ASTM D638是塑料拉伸性能的标准试验方法。以下是其主要内容: 1. **适用范围**: - 适用于在规定的预处理、温度、湿度和试验机速度等条件下,测试未增强型和增强型塑料的标准哑铃形试样的拉伸性能。适用于厚度不超过0.55英寸(14毫米)的试验材料;对于薄片或薄膜(厚度小于1.0毫米),...
- ASTM D638是广泛应用于塑料拉伸性能测试的标准。它规范了测试流程,为准确评估塑料材料的拉伸强度、拉伸模量和断裂伸长率等关键性能指标提供了统一方法。 2. **适用范围** - 适用于各种类型的塑料,包括热塑性和热固性塑料,涵盖注塑、挤出等多种成型工艺得到的塑料制品。 3. **测试原理*...
5 FIG. 2 Diagram Showing Location of Tube Tension Test Specimens in Testing Machine NOTE 9—Test results have shown that for some materials such as glass D 638 – 03 NOTE 12—Before testing, all transparent specimens should be inspected in a polariscope. Those which show atypical or ...
Tensile tests were performed by ASTM D638 standard. Two characteristics response optimisation models based on Taguchi Technique and multi-linear regression models were developed to optimise the process parameters and the ultimate tensile strength of the 3D printed samples. Findin...
ASTM D638 Type Ⅳ哑铃试样裁切刀模 橡胶拉伸试样裁刀,本视频由众研仪器提供,0次播放,好看视频是由百度团队打造的集内涵和颜值于一身的专业短视频聚合平台