Experimental study on z-pin bridging law by pull-out tests

Hong Yuan Liu, Wenyi Yan, Shao Cho Dai, Yiu Wing Mai

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

1 Citation (Scopus)

Abstract

This paper presents an experimental study on the zpin bridging law. The relationship between the z-pin bridging force and its displacement was measured by z-pin pull-out tests. Three types of samples were examined, which included single small pin; 3·3- small-pin (three columns×three rows) and 3·3-bigpin samples. For 3·3-small-pin samples, a typical pull-out curve with initial elastic bonding, unstable debonding and frictional sliding was obtained. A high peak value of the debonding force was reached before z-pin debonding started. After debonding was initiated, the pull-out force dropped rapidly to a lower value, the pins were then pulled out steadily. The difference between the peak debonding force and the frictional pull-out force decreased with increasing loading rate. However, for samples with big pins, it was difficult to discern the peak debonding force.

Original languageEnglish
Title of host publication44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Publication statusPublished - 1 Dec 2003
Externally publishedYes
Event44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference 2003 - Norfolk, VA, United States of America
Duration: 7 Apr 200310 Apr 2003

Publication series

Name44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

Conference

Conference44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference 2003
CountryUnited States of America
CityNorfolk, VA
Period7/04/0310/04/03

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