Example systems and methods of a system for mounting a grinder/polisher sample holder are provided. The system includes a platform having one or more fasteners, upon which one or more mounting fixtures are arranged and mounted. The one or more mounting fixtures are configured to secure a sample holder in place for testing of the samples, such as a hardness test. One or more of the mounting fixtures may include mounting brackets to support the sample holder, and to fix an orientation and/or position of the sample holder. In examples, the mounting fixtures have interfaces to contact and support the sample holder when the sample holder is arranged within the system.

The invention discloses a method for obtaining the geometrical and mechanical parameters of rock samples and a holographic scanning system thereof, wherein the system includes an observation mechanism, a multi-scale penetration mechanism, a grinding mechanism, a rock sample installation mechanism arranged on a three-axis precision motion platform, and an industrial computer controlling the operation mode of each mechanism of the platform Indentation/rotary penetration test, pulse echo signal acquisition, three-dimensional surface topography reconstruction, layer by layer grinding and repeated experiments are carried out. The geometric parameters and corresponding mechanical field parameters are obtained by spatial interpolation of the three-dimensional parameter lattice accumulated by several layers of single-layer rock parameters. The holographic scanning system and method can obtain the real spatial distribution of various media in rock samples. Combined with high performance numerical calculation method, it provides a more scientific method for the analysis of rock mechanical properties, failure and instability.

Disclosed are a test method and algorithm for an aging life of a composite, and a use thereof. The test method and algorithm includes: respectively placing specimens in four temperature environments to undergo damp and hot, high and low temperature impact and high and low temperature alternating cycle for a specified time; testing the physical, chemical and electrical properties of the specimens by using laminated combined test pieces; fitting parameters in a micro-gasification expansion oscillation equation; fitting constants in a kinetic correlation equation (2) of the parameters; calculating new values of the parameters in any temperature environment by using the constant equation (2); and substituting the new values of the parameters back into the equation (1), so as to evaluate or predict the physical, chemical and electrical properties of the specimens at any time.

A device and method for preparing a solidified cohesionless soil specimen for triaxial test. The device includes a first vessel for storing a grout, a first peristaltic pump, a grouting pipe, a first electrode rod, a direct-current power supply, a first glass stopper, a PMMA pipe, a circumferential grouting cylinder, a first hoop sleevedly provided on the circumferential grouting cylinder, a second hoop sleevedly provided on the PMMA pipe, a return pipe, a second glass stopper, a second electrode rod, a liquid outlet pipe, a first water-stop clamp, a second water-stop clamp, a second vessel for collecting an exudate, and a second peristaltic pump.

A steel pipe collapse strength prediction model generation method, a steel pipe collapse strength prediction method, a steel pipe manufacturing characteristics determination method, and a steel pipe manufacturing method capable of highly accurately predicting the collapse strength of a steel pipe after forming or a coated steel pipe in consideration of the pipe-making strain during forming. Into a steel pipe collapse strength prediction model generated by the prediction model generation method, steel pipe manufacturing characteristics including the shape of a steel pipe to be predicted after forming, strength characteristics, and the pipe-making strain are input to predict the collapse strength after forming. Into a steel pipe collapse strength prediction model, steel pipe manufacturing characteristics including the shape of a coated steel pipe to be predicted after forming, strength characteristics, the pipe-making strain, and coating conditions are input to predict the collapse strength of the coated steel pipe.

Described is a device for removal of excess material from a test sample. The test sample may be used in an instrument for measurement of rheological and mechanical properties sample properties. The device includes a test geometry and a trimming ring. The test geometry includes a lower geometry and upper geometry each having a circular outer edge and being centered on an axis of rotation. The trimming ring has a sidewall, a ring axis coincident with the axis of rotation and at least one cutting edge disposed along at least a portion of a circumference of the trimming ring at a diameter that is at least as great as a diameter of one or both the lower geometry and the upper geometry. The device further includes an actuator coupled to the trimming ring and configured to translate the trimming ring in a direction parallel to the axis of rotation.

A method of evaluating fluid sensitivity of a water-based muds on a shale rock. The method includes providing a sample of the shale rock from a portion of a formation, where the portion of the formation is positioned outside of a reservoir region. The sample of the shale rock is separated into a first portion and a second portion. The first portion is subjected to a UCS test for detecting a first uniaxial compressive strength (UCS) value (UCS.sub.o). The second portion is converted into a prepared sample utilizing a test preparation procedure. The prepared sample is subjected to the UCS test for detecting a second UCS value (UCS.sub.1). A fluid sensitivity index (FSI) is determined utilizing the detected UCS.sub.0 and USC.sub.1 values.

A method for optimizing a low cycle and optionally high-cycle fatigue test rig includes selecting variable geometric parameters of the support member and/or of the workpiece of the rig, in addition to ranges of variation of these parameters, selecting at least one aim or design objective to be achieved, a variation in the values of at least a part of the abovementioned parameters having an influence on this aim or design objective, and testing one or a plurality of the values of the abovementioned parameters, in the respective ranges of same, and determining those values that make it possible to achieve the aim or design objection. With those values, the method including producing or modifying a support member and/or a workpiece on the basis of the optimized parameters.

A coupon suitable for peeling tests, derived from a vane and comprising: (i) a portion of blade that comprises a frontside surface, a backside surface and a leading edge and/or trailing edge and (ii) a vane reinforcement that covers and is glued to at least a part of the frontside surface, a part of the backside surface and which extends beyond the leading and/or trailing edge. The reinforcement is split over the entire length of the leading edge and/or trailing edge such that the reinforcement is separated into two plates separate from one another and facing each other on either side of the slit beyond the leading and/or trailing edge. Furthermore, at least one of the plates furthermore comprises, beyond the leading and/or trailing edge, fastening means providing a hold to this same plate.

A system and method for identifying test bars formed during a selective laser sintering build. A part cake is formed during a selective laser sintering build. The part cake comprises parts formed from a powder by selective laser sintering and unsintered powder around the formed parts. The parts include test bars for performing material testing. Each test bar includes a plurality of indentations in a first grip section and a second grip section. The plurality of indentations are arranged in a information providing pattern that is adapted to be readable after the test part is removed from the part cake.