US 11,747,250 B2
Impact test apparatus and impact test method
Minsang Koo, Seongnam-si (KR); Do Kyung Kim, Daejeon (KR); Sanghoon Kim, Hwaseong-si (KR); Seungho Kim, Asan-si (KR); Seongjin Hwang, Suwon-si (KR); Jung Hoon Kong, Daejeon (KR); and Dong Gyu Kim, Daejeon (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR); and KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, Daejeon (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR); and Korea Advanced Institute of Science and Technology, Daejeon (KR)
Filed on Dec. 9, 2021, as Appl. No. 17/546,655.
Claims priority of application No. 10-2021-0034253 (KR), filed on Mar. 16, 2021.
Prior Publication US 2022/0299413 A1, Sep. 22, 2022
Int. Cl. G01N 3/303 (2006.01); G01N 3/30 (2006.01); G01M 7/08 (2006.01)
CPC G01N 3/303 (2013.01) [G01N 3/30 (2013.01); G01M 7/08 (2013.01); G01N 2203/0033 (2013.01); G01N 2203/0076 (2013.01); G01N 2203/0282 (2013.01); G01N 2203/04 (2013.01); G01N 2203/0676 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An impact test apparatus comprising:
a base plate including an upper surface on which a specimen is placed;
a collision member that collides with the specimen;
a dropping unit that drops the collision member from an upper area of the specimen to the specimen and adjusts a height that the collision member drops;
a velocity measurement unit that measures a collision velocity of the collision member when the collision member collides with the specimen; and
an evaluation unit that produces a representative value that is a collision velocity at which a probability of breakage of the specimen is about 50%, and evaluates an impact resistance of the specimen based on the representative value.