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Measurement method to test the strength of peg and tie joints against tensile strength and press on simple bamboo structure
Published in Ratri Wulandari, Idhar Resmadi, Vika Haristianti, Rahmiati Aulia, Riky Taufik Afif, Gema Ari Prahara, Aulia Ibrahim Yeru, Dynamics of Industrial Revolution 4.0: Digital Technology Transformation and Cultural Evolution, 2021
The third stage is to test the strength of the test specimen laboratory test by using the tool Univeral Testing Manual (UTM) Ibertest type Eurotest. Universal Testing Manually is a machine used to test the tensile stress and compressive strength at material or materials with a variety of standards and compression on materials, components, and structures. In the case of this test, the bamboo material strung together in a series of structurally simple with a means of varying connection. Machine Universal Testing Machine can do tensile testing with many standards and compression tests on materials, components, and structures.
Tensile testing
Published in John Bird, Carl Ross, Mechanical Engineering Principles, 2019
A tensile test is one in which a force is applied to a specimen of a material in increments and the corresponding extension of the specimen noted. The process may be continued until the specimen breaks into two parts and this is called testing to destruction. The testing is usually carried out using a universal testing machine that can apply either tensile or compressive forces to a specimen in small, accurately measured steps. British Standard 18 gives the standard procedure for such a test. Test specimens of a material are made to standard shapes and sizes and two typical test pieces are shown in Figure 4.1. The results of a tensile test may be plotted on a load/extension graph and a typical graph for a mild steel specimen is shown in Figure 4.2.
Testing Methods for Composite Materials
Published in Magdi El Messiry, Natural Fiber Textile Composite Engineering, 2017
The universal testing machine is used for the tensile or compression tests and also for the other types of tests, such as shear, flexure, peel, tears, and cyclic loading. Usually, the yarn strength is given in N/tex. In order to convert N/tex to MPa, the following equation can be used: () Yarn strength(MPa)=103φρf(N/tex)
Lifetime assessment of structural adhesive joints by combining effects of mechanical load, humidity, moisture and UV: design of a test rig
Published in The Journal of Adhesion, 2020
S. Fevery, H. Hallez, D. Vandepitte, S. Debruyne
Ten samples are tested in the four different test configurations. The mean force–displacement curve of each test batch is calculated and plotted in the figures above (Figure 4–7). In addition, the corresponding 95% confidence interval of these curves is shown for each test campaign. For both measure methods, the maximum obtained forces are higher when testing with the highest test speed (50mm/min). As shown in Figure 8, scatter on the measured forces with the test rig can be compared with the results obtained by the calibrated Instron® universal testing machine. The universal testing machine used for this test is chosen based on the test range and accuracy of the load cell (5kN±0.25%), which is equal to that of the load cells used in the test rig. Hence, it must be emphasized that, the dual load cell configuration of the test rig reduces the overall force accuracy by a factor of two. In combination with the higher range in maximum force measured on the dog-bone samples (see Figure 8), this results in a higher 95% confidence interval for the test rig.