Inter-laminar Strength of Bonded Composite Lap Joints with Selective Stitching Through the Thickness
Main Article Content
Abstract
In bonded composite lap joints, inter-laminar strength is critical to prevent the delamination. In this paper, the phenomenon of progressive delamination in lap joints is simulated in ABAQUS software using stress based composite failure model. It is observed that in all the joints, failure initiation is due to high inter-laminar stresses at the edges of the lap joint. Use of through the thickness stitching results in a significant improvement in inter-laminar strength in joints. These joints are further analyzed for “selective stitching†wherein the stitching is restricted to the failure regions. The results show that selective stitching is able to provide failure strengths close to that of fully stitched model.
Article Details
Issue
Section
Articles
Authors who publish with this journal agree to the following terms: a. Authors retain copyright and grant the journal right of first publication, with the work two years after publication simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal. b. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal. c. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).