Hyundai Motor Company

Kia Corporation

Pusan Nat. Uni. Industry-university Coop.fdn.

Sang Jae Yoon

Sang Yoon Park

Chi Hoon Choi

Jeong Hoon Kim

Dong Jun Lee

Jeong Min Cho

Yong Beom Lee

Sung Su Yoo

Sang Won Lim

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.

Apparatus and method for impact test

A hybrid propeller shaft may include a CFRP tube layer in which high-strength CFRP or high-elasticity CFRP, the high-strength CFRP, and the high-elasticity CFRP are laminated to form at least two layers while having different wrapping angles by a prepreg wrapping process method; and a protective layer which is formed on an outermost layer of the CFRP tube layer to protect the CFRP tube layer.

Hybrid propeller shaft for vehicle

Growing community of inventors

Yongin-si, South Korea

Sang Jae Yoon