Numerical and experimental verification of impact response of laminated aluminum composite structure

• Autorzy: Wang Jifeng , Morris Tyler P. , Bihamta Reza , Pan Ye-Chen

Identyfikatory

DOI

10.24425/ame.2020.131687

• Języki publikacji: EN

Abstrakty

EN

Laminated Aluminum Composite Structure (LACS) has shown great potential for replacing traditional bulk aluminum parts, due to its ability to maintain low manufacturing costs and create complex geometries. In this study, a LACS, that consists of 20 aluminum layers joined by a structural tape adhesive, was fabricated and tested to understand its impact performance. Three impact tests were conducted: axial drop, normal and transverse three-point bending drop tests. Numerical simulations were performed to predict the peak loads and failure modes during impacts. Material models with failure properties were used to simulate the cohesive failure, interfacial failure, and aluminum fracture. Various failure modes were observed experimentally (large plastic deformation, axial buckling, local wrinkling, aluminum fracture and delamination) and captured by simulations. Cross-section size of the axial drop model was varied to understand the LACS buckling direction and force response. For threepoint bending drop simulations, the mechanism causing the maximum plastic strain at various locations in the aluminum and adhesive layers was discussed. This study presents an insight to understand the axial and flexural responses under dynamic loading, and the failure modes in LACS. The developed simulation methodology can be used to predict the performance of LACS with more complex geometries.

Słowa kluczowe

EN

laminated aluminum structure; axial drop; buckling; three-point bending; flexural response; delamination

PL

wyboczenie; trzypunktowe zginanie; rozwarstwienie

• Wydawca: Komitet Budowy Maszyn PAN
• Czasopismo: Archive of Mechanical Engineering
• Rocznik: 2020
• Tom: LXVII, nr 2
• Strony: 127--147
• Opis fizyczny: Bibliogr. 25 poz., rys., tab., wykr.

Twórcy

autor

Wang Jifeng

• General Motors Global Technical Center, 29360 William Durant Boulevard, Warren, Michigan 48092-2025, USA.

autor

Morris Tyler P.

• General Motors Global Technical Center, 29360 William Durant Boulevard, Warren, Michigan 48092-2025, USA.

autor

Bihamta Reza

• General Motors Global Technical Center, 29360 William Durant Boulevard, Warren, Michigan 48092-2025, USA.

autor

Pan Ye-Chen

• General Motors Global Technical Center, 29360 William Durant Boulevard, Warren, Michigan 48092-2025, USA.

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).