Lap-shear strength and fracture behavior of CFRP/3D-printed titanium alloy adhesive joint prepared by hot-press-aided co-bonding

被引：10

作者：

Shirasu, Keiichi ^{[1
]}

Mizutani, Masayoshi ^{[2
]}

Takano, Naoki ^{[2
]}

Yoshinaga, Hajime ^{[3
]}

Oguri, Tsuyoshi ^{[3
]}

Ogawa, Ken-ichi ^{[3
]}

Okabe, Tomonaga ^{[1
,4
,5
]}

Obayashi, Shigeru ^{[6
]}

机构：

[1] Tohoku Univ, Dept Aerosp Engn, Aoba Ku, 6-6-01 Aza Aoba, Sendai, Miyagi 9808579, Japan

[2] Tohoku Univ, Dept Mech Syst Engn, Aoba Ku, 6-6-01 Aza Aoba, Sendai, Miyagi 9808579, Japan

[3] Jamco Corp, 1-100 Takamatsucho, Tachikawa, Tokyo 1900011, Japan

[4] Univ Washington, Dept Mat Sci & Engn, BOX 352120, Seattle, WA 98195 USA

[5] Natl Inst Mat Sci, Res Ctr Struct Mat, Polymer Matrix Hybrid Composite Mat Grp, 1-2-1 Sengen, Tsukuba, Ibaraki 3050047, Japan

[6] Tohoku Univ, Inst Fluid Sci, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan

来源：

INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES | 2022年 / 117卷

关键词：

3D print; Hot-press jointing; Composites; Lap-shear; Co-bonding; DAMAGE; FAILURE;

D O I：

10.1016/j.ijadhadh.2022.103169

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Multimaterial structures comprising carbon fiber reinforced plastics (CFRPs) and titanium alloys can be widely utilized in the aerospace and automotive industries to achieve optimal weight reduction and reliable structures. In this study, three-dimensional-printed titanium (3DP-Ti) adherends prepared using selective laser melting were co-bonded with woven-fabric carbon fiber reinforced phenolic matrix composite by hot pressing. Upon controlling the scanning speed and path, the 3DP-Ti adherends were prepared with various porosities and macro structures on their surfaces, and the influences of these surface structures on the lap-shear strengths and fracture morphologies of the 3DP-Ti adherends were investigated. The lap-shear tests of the lap-shear joints with flat 3DPTi and pyramidal-macrostructured 3DP-Ti displayed the cohesive failure of the phenolic resin matrix. In contrast, the specimen with cylindrical macrostructure exhibited CFRP fracture and delivered the highest bond strength of 20.6 MPa, which was 18-64% greater than the strength of the lap-shear joint with the conventional Ti alloy plate and 3DP-Ti adherends with flat surface and pyramidal macrostructure. The major possible mechanisms behind the failure mode transition and the highest bond strength included the mechanical interlocking between the cylindrical macrostructure and CFRP.

引用

页数：9

共 24 条

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