effects of hole perpendicularity error on mechanical performance of single-lap double-bolt composite joints

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2017
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Abstract
Static tensile experiments and numerical simulations were carried out to study effects of hole perpendicularity error on mechanical performance of single-lap double-bolt composite joints. Hole tilting angle, varying from 1 to 4 degrees, and hole tilting direction to account for anisotropic properties of composite material were investigated. Progressive damage model (PDM) based on Chang-Lessard type criterion with an extension by Olmedo was created, which involved seven failure modes and made material properties be a direct function of predefined field variables. The model was implemented in ABAQUS/Standard using a UMAT subroutine. Good agreement was found when comparing numerical simulation results with experimental outcomes. In addition, the results demonstrate that, with increasing of hole tilting angle, damage is prone to arise and the load path of the composite bolted joints alters with changing of hole tilting direction, which result in severe stress concentration around the edge of hole and joint failure in advance.
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liu2017internationaleffects Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Xueshu Liu;Yuxing Yang;Yiqi Wang;Yongjie Bao;Hang Gao
Journal 19th international congress of chemical and process engineering, chisa 2010 and 7th european congress of chemical engineering, ecce-7
Year 2017
DOI
10.1155/2017/2790198
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