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Testing machine

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The Testing Machine is a versatile laboratory instrument designed to measure the mechanical properties of a wide range of materials. It applies controlled forces or displacements to a test specimen and accurately records the resulting data, providing insights into the specimen's strength, stiffness, and other characteristics.

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Lab products found in correlation

Quanta 200f, by Thermo Fisher Scientific (1 mentions) Model 3382, by Instron (1 mentions) Bluehill program, by Instron (1 mentions) Isomet, by Buehler (1 mentions)

41 protocols using testing machine

1

Flexural Testing of Linear PCL Sheets

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Example 13

Linear PCL was mechanically characterized in flexion according to ASTM standard D790, and shown in FIG. 18. Sheets of linear PCL, PCL with excipients, and PCL with excipients and drugs were cured into sheets 2 mm in thickness. The sheets were allowed to cool and then rectangles 80 mm length×8 mm width were cut out of the sheet to produce samples. A digital micrometer was used to measure the width and thickness of specimens prior to testing. An Instron testing machine fitted with a three-point bending fixture was used to test specimens. The test was conducted at a rate of 0.85 mm/min and a span of 32 mm was used for all specimens. The test was stopped when specimens failed or when they reached a flexural stain of 20%. Force was converted into flexural stress and displacement into flexural strain.

US10517819B2. Residence structures and related methods (2019-12-31). Massachusetts Institute of Technology [US], The Brigham and Women's Hospital, Inc. [US]. Inventors: Andrew Bellinger [US], Shiyi Zhang [CN], Carlo Giovanni Traverso [US], Robert S. Langer [US], Stacy Mo [US], Tyler Grant [US], Mousa Jafari [US], Dean Liang Glettig [US], Angela DiCiccio [US], Lowell L. Wood, Jr. [US], Philip A. Eckhoff [US].
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2

Leaf Stiffness Measurement Protocol

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Leaves of different species are freshly collected from the branches as typical leaves for stiffness measurements. The collected leaves are cleaned by water and then cut into separately vein part and mesophyll part immediately to avoid excessive loss of water. An Instron testing machine is used to test the tensile modulus of mesophyll and vein. In conjunction with the geometric measurements of leaves, the bending stiffness of mesophyll and vein can be calculated as follows D=Et312(1−ν2), where D is bending stiffness of mesophyll or vein, E , t and ν are the Young’s modulus, thickness and Poisson ratio of the mesophyll or vein, respectively.
Sun Z., Cui T., Zhu Y., Zhang W., Shi S., Tang S., Du Z., Liu C., Cui R., Chen H, & Guo X. (2018). The mechanical principles behind the golden ratio distribution of veins in plant leaves. Scientific Reports, 8, 13859.
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3

Tensile Properties of Composite Material

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The tensile samples are in a dog-bone shape. Its guage length is 10 mm and the dimension of the cross-section is 1 × 1 mm2. The tensile samples were prepared by the electric spark method. The lateral surfaces of all tensile samples were ground and finely polished using a 1.0 μm diamond paste. Tensile tests were conducted in an Instron testing machine at room temperature, using a constant strain rate of 1 × 10−4 s−1. In determining the tensile properties of the composite, five tensile samples were tested. Their average values and standard deviations were calculated. The deformed samples were investigated by SEM to reveal the deformation and fracture features.
Wu F.F., Chan K.C., Jiang S.S., Chen S.H, & Wang G. (2014). Bulk metallic glass composite with good tensile ductility, high strength and large elastic strain limit. Scientific Reports, 4, 5302.
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4

Shear Strength of Spot-Welded Joints

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Samples with spot-welded joints of different quality, after ultrasonic testing, were shorn on a testing machine (Instron, Norwood, MA, USA). That allowed determining the destroying force of the joint. The speed of movement of the jaws of the testing machine was set at 25.0 mm/min, which corresponds to the values used by one of the world’s biggest manufacturers of motor vehicles in the strength tests of spot-welded joints. The maximum test time was set to 120 s. However, for most of the tested spot-welded joints, the joint was damaged after around 15 s. It was observed by the separation of the sheets in the place where the spot weld had previously formed. The final result of the shear test was the value of the destroying force of the joint and the graphs of the force change depending on the distance traveled by the jaws of the testing machine (in mm). Only the value of the destructive force was used in the analysis of the results. The view of the sample in the jaws of the testing machine is shown in Figure 3.
Ulbrich D, & Kańczurzewska M. (2022). Correlation Tests of Ultrasonic Wave and Mechanical Parameters of Spot-Welded Joints. Materials, 15(5), 1701.
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5

Shear Bond Strength of Nanocomposite

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No bonding agent was applied, and light-cured for 20 s. Nanocomposite resin was placed and cured according to manufacturer’s instructions.
All the 48 specimens were transferred to the Instron testing machine individually and subjected to shear bond strength study.
Singh K., Naik R., Hegde S, & Damda A. (2015). Shear Bond Strength of Superficial, Intermediate and Deep Dentin In Vitro with Recent Generation Self-etching Primers and Single Nano Composite Resin. Journal of International Oral Health : JIOH, 7(Suppl 1), 28-32.
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6

Mechanical Characterization of Linear PCL

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Linear PCL was mechanically characterized in flexion according to ASTM D-790. Sheets of linear PCL, PCL blended with excipient, and PCL blended with excipient and ivermectin were molded into 2-mm-thick sheets. The sheets were allowed to cool, and then, 80-mm × 8-mm rectangles were cut out of the sheet to produce samples. A digital micrometer was used to measure the width and thickness of specimens before testing. An Instron testing machine fitted with a four-point bending fixture was used to test specimens. The test was conducted at a rate of 0.85 mm/min, and a span of 32 mm was used for all specimens. The test was stopped when the specimens failed or when they reached a flexural strain of 20%. Force was converted into flexural stress, and displacement was converted into flexural strain.
Bellinger A.M., Jafari M., Grant T.M., Zhang S., Slater H.C., Wenger E.A., Mo S., Lee Y.A., Mazdiyasni H., Kogan L., Barman R., Cleveland C., Booth L., Bensel T., Minahan D., Hurowitz H.M., Tai T., Daily J., Nikolic B., Wood L., Eckhoff P.A., Langer R, & Traverso G. (2016). Oral, ultra–long-lasting drug delivery: Application toward malaria elimination goals. Science translational medicine, 8(365), 365ra157.
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7

Tensile Testing of Composite Plates

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The tensile tests were carried out on the basis of standard UNE EN ISO 527-1:2020-01 using an INSTRON testing machine. The constant speed of the moveable traverse was assumed to be stable and equal to 2 mm/min. As a result of tests, the diagrams of force vs. elongation were obtained. The samples were cut out from the plate according to the scheme shown in Figure 1a, where the symbols mean the following: MD—main direction; PD—perpendicular direction; and 45—angle orientated to the plate edges. The dimensions of the samples were based on the aforementioned standard: L = 170 mm, b1 = 40 mm, w1 = 10 mm, w2 = 20 mm, and mean thickness t = 3 mm (Figure 1b). The Young’s modulus of the composite was determined by using an extensometer with a gauge length of 50 mm.
Plota-Pietrzak A., Czechowski L., Miszczak S, & Masek A. (2024). Innovative Materials Based on Epoxy Resin for Use as Seat Elements in Bulk Transport. Materials, 17(8), 1829.
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8

Degradation and Mechanical Evaluation of Bioceramic Scaffolds

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For evaluation of degradation, the DIO/CSM10-x scaffolds (n = 16; 7 × 7 × 7 mm) were weighed (W0) and immersed in 37 °C Tris buffer with an initial pH 7.4 for 2, 4, and 8 weeks, respectively, and a ratio of 1.0 g of scaffold to 200 mL of buffer was used. After the pre-set time stage, the scaffolds were rinsed with absolute ethanol and then dried at 110 °C for 12 h, and weighed (Wt). The change in weight was expressed as Wt/W0 × 100%. The mechanical strength of the as-dried scaffolds was also determined by Instron testing machine. The porosity of the bioceramic scaffolds (n = 4) was also measured using the Archimedes method in distilled water at each time point.
He D., Zhuang C., Xu S., Ke X., Yang X., Zhang L., Yang G., Chen X., Mou X., Liu A, & Gou Z. (2016). 3D printing of Mg-substituted wollastonite reinforcing diopside porous bioceramics with enhanced mechanical and biological performances. Bioactive Materials, 1(1), 85-92.
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9

Mechanical Characterization of Linear PCL

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Example 13

Linear PCL was mechanically characterized in flexion according to ASTM standard D790, and shown in FIG. 18. Sheets of linear PCL, PCL with excipients, and PCL with excipients and drugs were cured into sheets 2 mm in thickness. The sheets were allowed to cool and then rectangles 80 mm length×8 mm width were cut out of the sheet to produce samples. A digital micrometer was used to measure the width and thickness of specimens prior to testing. An Instron testing machine fitted with a three-point bending fixture was used to test specimens. The test was conducted at a rate of 0.85 mm/min and a span of 32 mm was used for all specimens. The test was stopped when specimens failed or when they reached a flexural stain of 20%. Force was converted into flexural stress and displacement into flexural strain.

US10716751B2. Residence structures and related methods (2020-07-21). Massachusetts Institute of Technology [US], The Brigham and Women's Hospital, Inc. [US]. Inventors: Andrew Bellinger [US], Shiyi Zhang [CN], Carlo Giovanni Traverso [US], Robert S. Langer [US], Stacy Mo [US], Tyler Grant [US], Mousa Jafari [US], Dean Liang Glettig [US], Angela DiCiccio [US], Lowell L. Wood, Jr. [US], Philip A. Eckhoff [US].
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10

Mechanical Characterization of Linear PCL

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Example 13

Linear PCL was mechanically characterized in flexion according to ASTM standard D790, and shown in FIG. 18. Sheets of linear PCL, PCL with excipients, and PCL with excipients and drugs were cured into sheets 2 mm in thickness. The sheets were allowed to cool and then rectangles 80 mm length×8 mm width were cut out of the sheet to produce samples. A digital micrometer was used to measure the width and thickness of specimens prior to testing. An Instron testing machine fitted with a three-point bending fixture was used to test specimens. The test was conducted at a rate of 0.85 mm/min and a span of 32 mm was used for all specimens. The test was stopped when specimens failed or when they reached a flexural stain of 20%. Force was converted into flexural stress and displacement into flexural strain.

US10610482B2. Residence structures and related methods (2020-04-07). Massachusetts Institute of Technology [US], The Brigham and Women's Hospital, Inc. [US]. Inventors: Andrew Bellinger [US], Shiyi Zhang [CN], Carlo Giovanni Traverso [US], Robert S. Langer [US], Stacy Mo [US], Tyler Grant [US], Mousa Jafari [US], Dean Liang Glettig [US], Angela DiCiccio [US], Lowell L. Wood, Jr. [US], Philip A. Eckhoff [US].
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