TY - JOUR
T1 - Characterization of piercing damage in CFRP cross-ply laminates after punch shear machining via impact loading
AU - Matsuda, Shinya
AU - Mabe, Kohei
AU - Ogi, Keiji
AU - Yashiro, Shigeki
AU - Kakudo, Yoshifumi
N1 - Funding Information:
The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This study was supported by a research grant from the Suzuki Foundation of FY2017, and Aamada Foundation of FY2017 (AF2017039).
Publisher Copyright:
© The Author(s) 2021.
PY - 2021/12
Y1 - 2021/12
N2 - In industrial processes, piercing and trimming are essential because composite structures are usually manufactured in a near-net shape to reduce machining operations. Punching and shear cutting using out-of-plane shear loading are expected to increase productivity. Nevertheless, little is known about the effects of such operations on polymer-matrix composites. This study presents on the characterization of piercing damage in typical carbon fiber reinforced plastic (CFRP) cross-ply laminates [0°2/90°2]s after punching using quasi-static (QS) and drop-weight impact (DWI) loadings. During QS punching, the upper and lower ply interfaces delaminate due to the high shear stress to cut fibers and gradual shear deformation in the middle ply; however, during DWI punching at a low impact velocity, delamination of the lower ply interface can be reduced due to the localization of shear deformation, as compared to that in QS punching. Finally, the damage accumulation process during DWI punching is discussed.
AB - In industrial processes, piercing and trimming are essential because composite structures are usually manufactured in a near-net shape to reduce machining operations. Punching and shear cutting using out-of-plane shear loading are expected to increase productivity. Nevertheless, little is known about the effects of such operations on polymer-matrix composites. This study presents on the characterization of piercing damage in typical carbon fiber reinforced plastic (CFRP) cross-ply laminates [0°2/90°2]s after punching using quasi-static (QS) and drop-weight impact (DWI) loadings. During QS punching, the upper and lower ply interfaces delaminate due to the high shear stress to cut fibers and gradual shear deformation in the middle ply; however, during DWI punching at a low impact velocity, delamination of the lower ply interface can be reduced due to the localization of shear deformation, as compared to that in QS punching. Finally, the damage accumulation process during DWI punching is discussed.
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U2 - 10.1177/00219983211031627
DO - 10.1177/00219983211031627
M3 - Article
AN - SCOPUS:85113377564
VL - 55
SP - 4111
EP - 4124
JO - Journal of Composite Materials
JF - Journal of Composite Materials
SN - 0021-9983
IS - 28
ER -