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Improvement of flatwise compression properties on 10 mm thickness 3D woven glass fiber-Polyester sandwich composite by means of polyurethane foam injection
Judawisastra H.a, Sayyu C.T.a, Taufiq D.I.a
a Materials Science and Engineering Researh Group, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Coblong, Bandung, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2020 American Institute of Physics Inc.. All rights reserved.Sandwich materials have high specific bending properties but low delamination strength. 3D woven sandwich composite has a skin that were integrated with its core which results high delamination strength and interconnected pore. Flatwise compressive properties of 3D woven sandwich composite with 10 mm thickness have previously been investigated. The compressive strength and modulus of 3D woven sandwich composite is lower than other kinds of sandwich materials with the same thickness, such as honeycomb sandwich. Polyurethane foam has a pore structure, but its density is higher than the core of 3D woven sandwich composite. This study aims to improve flatwise compressive properties of 3D woven sandwich composite by means of polyurethane foam injection. 3D woven sandwich composites were made using lamination method. Polyurethane foams were injected using open mould and closed mould. Injected polyurethane foams were made with two variety of isocyanate and polyol, which are 50:500 and 45:55. Flatwise compressive properties were obtained by compression test. The injection of polyurethane foam to 3D woven sandwich composite succeeded in increasing core’s density up to 25%, increasing flatwise compressive strength up to 345%, and increasing flatwise compressive modulus up to 254%.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]This work was financially supported by the Ministry of Research, Technology, and Higher Education (Innovation Grant 2018, 2019), PT. INKA, and Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1063/5.0016099[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]