An impact slug includes a first slug segment and a second slug segment arranged in sequence along a length direction of the impact slug. The second slug segment is connected to the first slug segment.

The present disclosure relates to an apparatus and a method for an impact test, which can easily accelerate an impact body at a desired acceleration using an air pressure and an electromagnetic force. According to an embodiment of the present disclosure, an apparatus for an impact test includes a clamping unit configured to fix a specimen, and an impact unit disposed to be spaced apart from the clamping unit and configured to accelerate and launch an impact body to collide with the specimen by an air pressure and an electromagnetic force.

The present disclosure relates to an apparatus and a method for an impact test, which can easily accelerate an impact body at a desired acceleration using an air pressure and an electromagnetic force. According to an embodiment of the present disclosure, an apparatus for an impact test includes a clamping unit configured to fix a specimen, and an impact unit disposed to be spaced apart from the clamping unit and configured to accelerate and launch an impact body to collide with the specimen by an air pressure and an electromagnetic force.

Systems, methods, devices, and circuitries are provided for determining a material property. In one embodiment, a method includes receiving an environmental characteristic value from a user; determining garment suitability information for the environmental characteristic value; and providing an indication of the garment suitability information to the user.

In one implementation, a footfall detection assembly comprising a sensor underlayment unit and a data analysis device is provided. The sensor underlayment unit comprises a sensor having a unique sensor identifier and a plurality of zones, wherein the sensor is configured to measure zone capacitance in of the plurality of zones, and a processing unit operably connected to the sensor. The processing unit is configured to receive the measured zone capacitance values from the sensor upon the occurrence of a change in measured zone capacitance of the sensor and generate and transmit a data packet comprising at least the unique sensor identifier and measured zone capacitance values upon occurrence of a change in capacitance of at least one of the plurality of zones of the sensor. The data analysis device is configured to receive the data packet, compare the measured zone capacitance values of the data packet to previously-measured zone capacitance values associated with the sensor underlayment into and generate a result therefrom.

In one implementation, a footfall detection assembly comprising a sensor underlayment unit and a data analysis device is provided. The sensor underlayment unit comprises a sensor having a unique sensor identifier and a plurality of zones, wherein the sensor is configured to measure zone capacitance in of the plurality of zones, and a processing unit operably connected to the sensor. The processing unit is configured to receive the measured zone capacitance values from the sensor upon the occurrence of a change in measured zone capacitance of the sensor and generate and transmit a data packet comprising at least the unique sensor identifier and measured zone capacitance values upon occurrence of a change in capacitance of at least one of the plurality of zones of the sensor. The data analysis device is configured to receive the data packet, compare the measured zone capacitance values of the data packet to previously-measured zone capacitance values associated with the sensor underlayment into and generate a result therefrom.

A translation control and rotation control mechanism support jig for supporting a front end portion of an automobile body part includes a pair of support members, a rotary box having an L-shaped plate, a rotary shaft pin, a compression pin, and a connection plate. The translation control mechanism includes a support plate, a slide guide, an automobile body part securing disk, a translation plate, and a compression pin. Energy-absorbing members are disposed in an arcuate guide groove on a side surface of the rotary box and a linear guide groove arranged on the support plate or the translation plate. A collision punch collides at a test speed with the L-shaped plate of the rotary box. The compression pin deforms the energy-absorbing members to apply torque opposite to a rotation direction and a reaction force in an opposite direction to a translation direction.

A translation control and rotation control mechanism support jig for supporting a front end portion of an automobile body part includes a pair of support members, a rotary box having an L-shaped plate, a rotary shaft pin, a compression pin, and a connection plate. The translation control mechanism includes a support plate, a slide guide, an automobile body part securing disk, a translation plate, and a compression pin. Energy-absorbing members are disposed in an arcuate guide groove on a side surface of the rotary box and a linear guide groove arranged on the support plate or the translation plate. A collision punch collides at a test speed with the L-shaped plate of the rotary box. The compression pin deforms the energy-absorbing members to apply torque opposite to a rotation direction and a reaction force in an opposite direction to a translation direction.

A test result of a tensile test and a measurement result of a natural frequency are easily associated with each other. A high-speed tensile testing machine 1 is a tensile testing machine that executes a tensile test by applying a test force F to a test target TP. The machine includes: a determination unit 513 that determines a timing at which a striking force FD is applied to a testing machine body 2; a striking structure 60 that applies the striking force FD to the testing machine body 2 at the timing determined by the determination unit 513; a first detection unit 514 that detects a vibration of the testing machine body 2 generated by the striking force FD; a calculation unit 515 that calculates a natural frequency FA of the high-speed tensile testing machine 1 on the basis of a detection result of the first detection unit 514; an execution instruction unit 516 that executes the tensile test; and a recording unit 517 that writes, in a result storage unit 518, information indicating a test result of the tensile test in association with information indicating the natural frequency FA. The timing is included in either before or after the tensile testing machine 1 executes the tensile test.

A test result of a tensile test and a measurement result of a natural frequency are easily associated with each other. A high-speed tensile testing machine 1 is a tensile testing machine that executes a tensile test by applying a test force F to a test target TP. The machine includes: a determination unit 513 that determines a timing at which a striking force FD is applied to a testing machine body 2; a striking structure 60 that applies the striking force FD to the testing machine body 2 at the timing determined by the determination unit 513; a first detection unit 514 that detects a vibration of the testing machine body 2 generated by the striking force FD; a calculation unit 515 that calculates a natural frequency FA of the high-speed tensile testing machine 1 on the basis of a detection result of the first detection unit 514; an execution instruction unit 516 that executes the tensile test; and a recording unit 517 that writes, in a result storage unit 518, information indicating a test result of the tensile test in association with information indicating the natural frequency FA. The timing is included in either before or after the tensile testing machine 1 executes the tensile test.