A fixture, system, and method are provided for testing one or more axial loads in a flexible aerodynamic member. The fixture has a structural frame assembly with a first end portion, a second end portion, and an intermediate portion. The fixture has a first pivotal linkage assembly pivotable about a pitch axis, a pair of pitch actuators to apply a pitch moment to the first pivotal linkage assembly, a second pivotal linkage assembly pivotable about a flap axis, and a pair of flap actuators to apply a flap bending moment to the second pivotal linkage assembly. The fixture has a third pivotal linkage assembly pivotable about the pitch axis, and has a pair of chord actuators to apply axial load to the flexible aerodynamic member. The fixture minimizes deflections of a tip of the flexible aerodynamic member during testing to provide an improved accuracy of axial load measurement data.

Described herein are examples of material testing systems having new and improved processes that allow users to quickly and easily set several parameters defining a test method in response to a single user input, rather than having to manually set each and every parameter through a workflow. The parameters may further be optimized to comply with certain standards, save time, and/or reduce the potential for error. As the inputs required from the user during the new and improved processes are far fewer (and/or simpler) than if the user were to manually set each parameter through a workflow, there is a substantial time saving, and a substantial simplification of the endeavor.

Devices and methods employing interdigitated dielectrostrictive sensors are disclosed for measuring shear stress, and obtaining strain-dielectric and stress-dielectric coefficients to monitor a process, and examine quality of dielectric materials, including but not limited to polymer, composite, grease, food, biofluids and etc. The dielectrostrictive sensor includes at least two interdigitated sensors, each having at least two electrodes and a central axis. The central axes are disposed in a common plane and are oriented at different directions.

A system for monitoring a wear of a screed plate of a paving machine is disclosed. The system includes a sensor located on the screed plate. The sensor generates signals indicative of the wear of the screed plate. The system further includes a controller coupled to the sensor. The controller receives signals from the sensor and determines the wear of the screed plate based on the received signals.

An example flexible substrate testing system includes: a first substrate support structure configured to hold a first portion of a flexible substrate under test; a second substrate support structure configured to hold a second portion of the flexible substrate; one or more actuators configured to move the first and second substrate support structures at respective angles to fold the flexible substrate; and load cells configured to measure loads on the first substrate support structure and the second substrate support structure while the actuator moves the first substrate support structure and the second substrate support structure.

A sensor device for detecting static modulus of elasticity in situ comprising: top and bottom frame end plates, the top and bottom frame end plates connected by frame side bars; a dry cavity connected to the top frame end plate and comprising a piston, precompression mechanism, and piston transfer plate; a displacement measurement gauge extending from the dry cavity along a longitudinal axis of the sensor device having a first end in contact with the piston transfer plate and a second end in contact with a bottom inner face of the bottom frame end plate; and a top inner face connected to the piston transfer plate wherein a portion of elastomeric material is positioned on the bottom and top inner faces, the elastomeric material positioned to prevent contact with either bottom or top inner faces except for a portion along the longitudinal axis of the displacement measurement gauge.

The present disclosure provides a fine detection device and method for crack initiation and propagation of a rock specimen during loading process. The device comprises an organic glass skeleton, a plurality of sensor support skeletons, a multi-parameter dynamic acquisition system, a servo press bearing platform and a computer, wherein the organic glass skeleton is placed in the middle of the servo press bearing platform, the sensor support skeletons are arranged inside the organic glass skeleton, the rock specimen is arranged inside the sensor support skeleton, the multi-parameter dynamic acquisition system is fixedly arranged on the sensor support skeleton, the multi-parameter dynamic acquisition system is in contact with the rock specimen, and the multi-parameter dynamic acquisition system and the servo press bearing platform are electrically connected to the computer.

The present disclosure provides a fine detection device and method for crack initiation and propagation of a rock specimen during loading process. The device comprises an organic glass skeleton, a plurality of sensor support skeletons, a multi-parameter dynamic acquisition system, a servo press bearing platform and a computer, wherein the organic glass skeleton is placed in the middle of the servo press bearing platform, the sensor support skeletons are arranged inside the organic glass skeleton, the rock specimen is arranged inside the sensor support skeleton, the multi-parameter dynamic acquisition system is fixedly arranged on the sensor support skeleton, the multi-parameter dynamic acquisition system is in contact with the rock specimen, and the multi-parameter dynamic acquisition system and the servo press bearing platform are electrically connected to the computer.

A durability testing fixture, system and method for testing a medical device. The testing fixture include a stabilizing member, an inflatable member and a pressure controller. The inflatable member is positioned adjacent the stabilizing member and defines a bore therein, the bore sized to hold the medical device. The inflatable member is configured to receive and release a fluid so that the inflatable member is respectively inflatable and deflatable to radially displace an inner surface of the bore. The pressure controller is coupled to the inflatable member and is configured to control inflation and deflation of the inflatable member to radially displace the inner surface of the bore and to apply a force directly along an outer radially extending surface of the medical device.

A test apparatus and method for applying one or more tensile loads to a sample and for testing attributes of the sample exposed to the one or more tensile loads. The test apparatus includes a housing that has a plurality of interconnected sides that contain the sample during testing and provide a rigid support structure to offset the tensile loads applied to the sample. The test apparatus includes one or more force application assemblies that are each configured to apply a particular tensile load on the sample. Each of the force application assemblies includes an anchor for securing the sample to the housing, a connector attached to an opposite side of the sample from the corresponding anchor, and a tension rod assembly configured to apply the tensile load between the housing and the sample.