TY - JOUR ID - 16158 TI - Impact toughness of closed cell aluminum foam JO - Advanced Materials Proceedings JA - AMP LA - en SN - 2002-4428 AU - Das, Sourav AD - Mechanical Engineering Department, University of Wisconsin Milwaukee College of Engineering & Applied Science 53211 Y1 - 2018 PY - 2018 VL - 3 IS - 7 SP - 443 EP - 446 KW - Metal foam KW - charpy test KW - impact toughness KW - energy absorption DO - 10.5185/amp.2018/1432 N2 - The impact toughness of closed-cell aluminum foam with various densities was investigated using Charpy impact. The impact load history revealed an elastic region followed by a rapid load drop region. The peak load and impact toughness of aluminum foam increase exponentially with density. The power exponents for the impact toughness test are greater than that of the compressive test. Fracture analysis indicated a mixed-rupture mode of quasi-cleavage and small shallow dimples. It can be attributed to the complex state of stress of notched specimens and elevated impact velocity under impact loading. Copyright © 2018 VBRI Press. UR - https://amp.iaamonline.org/article_16158.html L1 - https://amp.iaamonline.org/article_16158_ff593aa08d4f2f3d912eb22097f414fa.pdf ER -