Experimental Methodology for Testing Metal-Composite Bolted Joints

This works consists on a new experimental methodology for testing metal-composite bolted joints. Single-lap titanium-composite structure joints attached by monel fasteners were investigated. Finite element analyses were carried out in order to predict the mechanical behavior of the joints up to the first failure, as well as to aid test setup. The experimental tests were carried out by using geometry specifications for composite-composite joints, and procedures established by the Secondary-Modulus Method for metal-metal joints. Based on the experimental tests, using the proposed methodology, it was possible to observe the mechanical behavior of the metal-composite joints, mainly the determination of the stiffness and strength of the structures. Therefore, the proposed methodology can contribute for designing metal-composite bolted joints, estimating not only the compliance, but also allowable stress values for those structures.

[1]  Axel Fink,et al.  Hybrid titanium–CFRP laminates for high-performance bolted joints , 2009 .

[2]  Alan Baker,et al.  A Proposed Approach for Certification of Bonded Composite Repairs to Flight-Critical Airframe Structure , 2011 .

[3]  Erdogan Madenci,et al.  Analysis of bolted–bonded composite single-lap joints under combined in-plane and transverse loading , 2009 .

[4]  Axel Fink,et al.  CFRP/titanium hybrid material for improving composite bolted joints , 2008 .

[5]  W. Chan,et al.  Analysis of Composite Bonded/Bolted Joints Used in Repairing , 2001 .

[6]  Akira Todoroki,et al.  Reinforcing an aluminum/GFRP co-cured single lap joint using inter-adherend fiber , 2008 .

[7]  L. J. Hart-Smith,et al.  Bonded-Bolted Composite Joints , 1984 .

[8]  Takashi Ishikawa,et al.  Bearing strength and failure behavior of bolted composite joints (part II: modeling and simulation) , 2005 .

[9]  Pedro P. Camanho,et al.  A damage model for the simulation of delamination in advanced composites under variable-mode loading , 2006 .

[10]  K. Bak,et al.  Parametric Study of Bonded, Riveted and Hybrid Composite Joints Using FEA , 2012 .

[11]  Dieter H. Pahr,et al.  Experimental investigation of a novel hybrid metal–composite joining technology , 2010 .

[12]  Jean Paul Kabche,et al.  Structural Testing and Analysis of Hybrid Composite/Metal Joints for High-Speed Marine Structures , 2006 .

[13]  Michael Chun-Yung Niu,et al.  Airframe Structural Design: Practical Design Information and Data on Aircraft Structures , 1988 .

[14]  Dirk Vandepitte,et al.  Failure analysis of low velocity impact on thin composite laminates : Experimental and numerical approaches , 2008 .

[15]  Dirk Vandepitte,et al.  A new damage model for composite laminates , 2012 .

[16]  G. C. Sih,et al.  Failure mechanics of composites , 1985 .

[17]  P. Camanho,et al.  A design methodology for mechanically fastened joints in laminated composite materials , 2006 .

[18]  Xiang Zhang,et al.  Simulation of pin-reinforced single-lap composite joints , 2006 .

[19]  Janet M. Lees,et al.  Mechanical/bonded joints for advanced composite structures , 2004 .

[20]  Peter Davies,et al.  Damage mechanisms in composite/composite bonded joints under static tensile loading , 1997 .

[21]  Onur Sayman,et al.  Experimental Failure Analysis of Two-Serial-Bolted Composite Plates , 2009 .

[22]  Junghyun Ahn,et al.  Metal‐to‐Metal and Metal‐to‐Composite Bonded and Bolted Structural Joints , 2010 .

[23]  F. L. Matthews,et al.  A Progressive Damage Model for Mechanically Fastened Joints in Composite Laminates , 1999 .

[24]  Dirk Vandepitte,et al.  Damage Model and Progressive Failure Analyses for Filament Wound Composite Laminates , 2013, Applied Composite Materials.

[25]  Akira Todoroki,et al.  Improving performance of GFRP/aluminum single lap joints using bolted/co-cured hybrid method , 2008 .

[26]  Nicholas G. Tsouvalis,et al.  An Investigation of the Tensile Strength of a Composite-To-Metal Adhesive Joint , 2011 .

[27]  Isaac M Daniel,et al.  Scaling of Strength of Metal-Composite Joints—Part I: Experimental Investigation , 2010 .

[28]  Vincent Caccese,et al.  Experimental characterization of hybrid composite-to-metal bolted joints under flexural loading , 2007 .