The present invention relates to a safety test apparatus of a battery cell. The safety test apparatus of the battery cell comprises: a jig on which the battery cell is disposed on a top surface thereof; and an impact member comprising an impact rod supported on the top surface of the battery cell and a striking weight disposed above the jig to freely drop toward the jig and strike the impact rod so that an impact is applied to the battery cell, wherein the striking weight is provided in a pair and comprises left and right striking parts that respectively strike two striking points, which are spaced apart from each other, of the impact rod and a connection part connecting the left and right striking parts to each other.

A mechanical testing apparatus for a specimen is presented. The mechanical testing apparatus comprises a drop table system and a Hopkinson bar. The drop table system has a drop carriage. The Hopkinson bar is positioned parallel to a motion of the drop carriage and connected to the drop table system by the specimen.

A mechanical testing apparatus for a specimen is presented. The mechanical testing apparatus comprises a drop table system and a Hopkinson bar. The drop table system has a drop carriage. The Hopkinson bar is positioned parallel to a motion of the drop carriage and connected to the drop table system by the specimen.

A glass stress test method includes breaking a glass, analyzing a shape of a crack of a broken portion of the glass in a plan view, finding a breakage origin of the glass based on the shape of the crack in the plan view, analyzing a cross-section of the breakage origin, and calculating a stress of the glass based on a cross-sectional analysis result of the breakage origin. The stress of the glass is calculated as a value proportional to a floor constant defined by a condition of a floor surface disposed when the glass is broken.

A glass stress test method includes breaking a glass, analyzing a shape of a crack of a broken portion of the glass in a plan view, finding a breakage origin of the glass based on the shape of the crack in the plan view, analyzing a cross-section of the breakage origin, and calculating a stress of the glass based on a cross-sectional analysis result of the breakage origin. The stress of the glass is calculated as a value proportional to a floor constant defined by a condition of a floor surface disposed when the glass is broken.

A pallet impact station includes a frame, at least one pendulum swing arm rotatably coupled to the frame, a carriage assembly carried by the at least one pendulum swing arm for impacting a pallet, and a latching mechanism extending between the frame and the at least one pendulum swing arm. The latching mechanism disengages the at least one pendulum swing arm at a raised position so that the carriage assembly impacts the pallet. A controller operates the latching mechanism to disengage the at least one pendulum swing arm.

A bipendulum impact test machine for imparting impact damage includes a frame of beams where a weighted sled swings from a pair of links extending from a carriage. The carriage and sled are vertically adjustable along a set of vertical shafts of the frame. The sled is permanently horizontally oriented and parallel with the carriage. Interchangeable impact tips are removably and adjustably engaged with the sled. The impact tips have a variety of shapes in order to simulate different impact scenarios. The device is mobile and capable of imparting impact damage to large aircraft parts even in an installed condition.

A bipendulum impact test machine for imparting impact damage includes a frame of beams where a weighted sled swings from a pair of links extending from a carriage. The carriage and sled are vertically adjustable along a set of vertical shafts of the frame. The sled is permanently horizontally oriented and parallel with the carriage. Interchangeable impact tips are removably and adjustably engaged with the sled. The impact tips have a variety of shapes in order to simulate different impact scenarios. The device is mobile and capable of imparting impact damage to large aircraft parts even in an installed condition.

An impact resistance test method of a glove having a protective material includes applying an impact force, with an impactor, to the glove at a plurality of locations on a section of the glove, measuring, with a load cell, a transferred impact force transferred through the section of the glove, and determining an impact resistance of the glove based on the measured transferred impact force. The impactor has a predetermined weight and is dropped from a predetermined height to apply the impact force to the section of the glove. An apparatus for carrying out the test method is also provided.

An impact resistance test method of a glove having a protective material includes applying an impact force, with an impactor, to the glove at a plurality of locations on a section of the glove, measuring, with a load cell, a transferred impact force transferred through the section of the glove, and determining an impact resistance of the glove based on the measured transferred impact force. The impactor has a predetermined weight and is dropped from a predetermined height to apply the impact force to the section of the glove. An apparatus for carrying out the test method is also provided.