Mechanical Performance and Failure Mechanism of Thick-walled Composite Connecting Rods Fabricated by Resin Transfer Molding Technique

Gang Liu, Chuyang Luo, Daijun Zhang, Xueqin Li, Peng Qu, Xiaochen Sun, Yuxi Jia, Xiaosu Yi

Research output: Journal PublicationArticlepeer-review

5 Citations (Scopus)

Abstract

A resin transfer molding technique was used to fabricate thick-walled composite connecting rods, and then the mechanical performance of the connecting rod was studied experimentally, at the same time the stress and failure index distributions were simulated numerically. The experimental results show that under a tensile load, the connecting rod first cracks near the vertex of the triangle areas at the two ends, and then the damage propagates along the interface between the main bearing beam and the triangle area as well as along the round angle of the triangle area. Whereas under a compressive load, the delamination primarily occurs at the corner of the U-shaped flange, and the final destruction is caused by the fracture of fibers in the main bearing beam. The simulated results reveal that the tensile failure is originated from the delamination at the round angle transition areas of the T-joints, and the failure strength is determined by the interlaminar strength. Whereas the compressive failure is caused by the fracture of fibers in the main bearing beam, and the failure strength of the structure is determined by the longitudinal compressive strength of the composite material. The simulated results are basically consistent with the experimental results. Hence the mechanical performance and failure mechanism of the complicated composite structure are revealed in great detail through the coupling of the two kinds of research methods, which is helpful for the optimal design of composite structures.

Original languageEnglish
Pages (from-to)423-436
Number of pages14
JournalApplied Composite Materials
Volume22
Issue number4
DOIs
Publication statusPublished - 31 Aug 2015
Externally publishedYes

Keywords

  • Composite Material
  • Connecting Rod
  • Failure Mechanism
  • Mechanical Performance
  • Resin Transfer Molding

ASJC Scopus subject areas

  • Ceramics and Composites

Fingerprint

Dive into the research topics of 'Mechanical Performance and Failure Mechanism of Thick-walled Composite Connecting Rods Fabricated by Resin Transfer Molding Technique'. Together they form a unique fingerprint.

Cite this