An apparatus for deformation measurement and a method for deformation measurement are provided. The apparatus includes a housing, a sample holder, a moving mechanism, a first heating device and a second heating device. The sample holder is in the housing. The moving mechanism is over the sample holder. The first heating device is on the moving mechanism. The second heating device is below the sample holder.

A fire testing device for testing fire-resistance properties of a test subject includes a cavity, a heat source adapted to heat the cavity, and a removable separation plate configured to subdivide the cavity into a first chamber and a second chamber. The heat source is arranged in the first changer and adapted to preheat the first chamber. The second chamber includes an opening adapted to receive the test subject. A fire-resistance test of the test subject may include activating the removable separation plate to subdivide the cavity into the first chamber and the second chamber, arranging the test subject at an opening of the second chamber, preheating the first chamber to a defined temperature using the heat source, deactivating the removable separation plate to provide an undivided cavity, and sustaining a heat supply to the cavity using the heat source.

Methods and apparatus are disclosed to determine material parameters of a turbine rotor. An example apparatus includes a rotor geometry determiner to determine a geometry of the rotor, a node radius calculator to calculate radial node locations of radial nodes including a first radial node, a thermocouple interface to record first temperature values over an interval, a first thermal stress calculator to calculate first thermal stress values at one or more of the radial nodes over the interval, a node temperature calculator to calculate second temperature values at respective internal nodes of the first radial node, a reference value lookup to lookup first material parameter information, a second thermal stress calculator to determine second thermal stress values, a thermal stress comparator to calculate a difference between the thermal stress values, and, in response to the difference not satisfying a threshold, a material parameter adjuster to determine material parameters.

A system for ultra-high temperature in-situ fretting fatigue experiment, includes a heat preservation cover defining a, a heating device arranged in the mounting space, a first test sample, a second test sample, and a clamping device arranged in the mounting space. The first test sample and the second test sample are arranged at an upper end of the heating device along a horizontal direction. A mortise is formed at an end of the first test sample facing towards the second test sample. A tenon mating with the mortise is formed at an end of the second test sample facing towards the first test sample. The clamping device is configured to be clamped at two ends of the mated first test sample and second test sample and to apply a periodically reciprocating loading along a length direction of the first test sample and the second test sample.

A system for evaluating a bond includes first and second electrodes. A dielectric material layer is positioned at least partially between the first and second electrodes. A power source is connected to the first and second electrodes. The power source is configured to cause the first and second electrodes to generate an electrical arc. The electrical arc is configured to at least partially ablate a sacrificial material layer to generate a plasma.

A method is provided for determining the thermal expansion of a low thermal expansion material with very high accuracy of at most +/3 ppb/K or less and/or with a reproducibility of at most +/1 ppb/K or less. A measuring device is also provided that includes an advanced push rod dilatometer.

A method for material lifetime evaluation includes: causing a stress to be applied to a material surface of a component based at least on a cycle of load properties over time; causing an image of the material surface to be captured as a captured image of a complete in-situ field; determining an area of a hysteresis of a stable surface strain region in a stress-strain curve of the material surface to determine a loss energy (first damage parameter) for low cycle fatigue modeling; determining a deformation energy (second damage parameter) for high cycle fatigue monitoring; determining a failure parameter based on at least one of the first damage parameter and the second damage parameter; comparing the failure parameter to a record in a database; and determining a remaining life of the component based on comparison of the failure parameter to the record in the database.

A system for simulating in situ drilling and treatment conditions on a core sample from a subterranean formation. The system re-creates various subterranean loads and temperatures on a test sample representative of actual in situ conditions from the particular formation while a test structure within the system performs drilling activities on the core sample using drilling and treating under evaluation for use in the particular subterranean formation. Thus, the impact on selected drilling and treating fluids can be evaluated as well as the impact those fluids had on a sample from the subterranean formation under in situ conditions.

A method for material lifetime evaluation includes: causing a stress or a strain to be applied to a material surface based at least on a cycle of properties over time; causing an image of the material surface to be captured as a captured image; and determining a surface strain energy density (SSED) model for the material surface based at least on the captured image. A system for material evaluation includes: a load generator configured to apply a stress or a strain to a material surface based at least on a cycle of properties over time; a sensor configured to capture an image of the material surface as a captured image; and a processor configured to determine a SSED model for the material surface based at least on the captured image. In the method and the system the captured image is correlated to the cycle of properties.

A method of laser bond inspection is provided. The method includes applying a thermochromatic energy-absorbing material to an inspection site of a test article. The method includes delivering a first amount of energy to the inspection site using a laser. The first amount of energy generates stresses in the test article. The method includes absorbing the first amount of energy into the thermochromatic energy-absorbing material to produce an observable thermal response that correlates to the first amount of energy.