mobile background
기술자료실

ADINA예제[충격해석] Impact Analysis using ADINA

관리자
2020-11-24
조회수 1558

bf815ea44898c.jpg

Impact Analysis using ADINA

ADINA 에서의 충격해석

Presentation Overview

※ Types of impact: crash and crush
※ Failure mechanisms
※ Equations to be satisfied
※ Impact analysis with finite element method
※ Example: Rod impacting a rigid surface
※ Modelling recommendations
※ Advantages of implicit time integration for impact analysis




Example of a Crash Impact Event

※ Deformations magnified by factor 6.6
※ Contact traction reaction vectors to visualize initiation of stress wave
※ Unsmoothed band plot (no averaging of stresses)




• Occurs over a time scale considerably longer than the time for a stress wave to propagate through the structure
(typically in the order of seconds for steels)

• Can be analyzed quasi-statically

• Wave propagation is not important. Impact duration determined from geometry, loading and boundary conditions.
It is not dependent on stress waves propagation

• Example of crush event: crushing of motor vehicle roof or door, crushing of impact tube, etc.

USA standard FMVSS 214 specifies minimum crush resistance for car door,
based on quasi-static test where rigid steel cylinder is pushed into car door.

자세한 내용 pdf 파일로 [ 자세히 보기 ]


※ 문의사항은 당사로 연락 부탁 드립니다.