Search results for "Mode II delamination"

showing 3 items of 3 documents

The effect of through-thickness compressive stress on mode II interlaminar fracture toughness

2017

Abstract The effect of through-thickness compressive stress on mode II interlaminar fracture toughness is investigated experimentally and replicated numerically. The modified Transverse Crack Tensile specimen recently proposed by the authors is used, together with an experimental device designed to apply a constant transverse compressive stress on the surface of the specimen. Experiments are conducted using IM7/8552 specimens for different compressive stresses, ranging from 0 to 100 MPa, covering all the practical applications commonly encountered in the aeronautical industry (e.g., tightened filled holes or bolted joints). It is shown that mode II interlaminar fracture toughness increases …

Compressive stressMaterials science/dk/atira/pure/subjectarea/asjc/2200/220502 engineering and technologyStress (mechanics)Settore ING-IND/14 - Progettazione Meccanica E Costruzione Di MacchineFracture toughness0203 mechanical engineeringUltimate tensile strength/dk/atira/pure/subjectarea/asjc/2500/2503Composite materialSettore ING-IND/04 - Costruzioni E Strutture AerospazialiCivil and Structural Engineeringbusiness.industryMode (statistics)Numerical modelsStructural engineering021001 nanoscience & nanotechnologySettore ING-IND/02 - Costruzioni E Impianti Navali E MariniTransverse planeSettore ING-IND/22 - Scienza E Tecnologia Dei Materiali020303 mechanical engineering & transportsCompressive strengthMode II delaminationBolted jointCeramics and CompositesSettore ICAR/08 - Scienza Delle Costruzioni0210 nano-technologybusinessInterlaminar fracture toughnessComposite Structures
researchProduct

The effect of the through-the-thickness compressive stress on mode II interlaminar fracture toughness

2017

The effect of through-the-thickness compressive stress on the mode II interlaminar fracture toughness is investigated experimentally and replicated numerically. The modified Transverse Crack Tensile specimen recently proposed by the authors is used, together with an experimental device designed to apply a constant transverse compressive stress on the surface of the specimen. Experiments are conducted using IM7/8552 specimens for different compressive stresses, ranging from 0 to 100 MPa, covering all the practical applications commonly encountered in the aeronautical industry (e.g., tightened filled holes or bolted joints). It is shown that the mode II interlaminar fracture toughness increas…

Settore ING-IND/14 - Progettazione Meccanica E Costruzione Di MacchineInterlaminar fracture toughness Mode II delamination Compressive stress
researchProduct

Experimental evaluation of through-the-thickness stress distribution in transverse crack tension test samples

2015

Transverse Crack Tension (TCT) samples represent an alternative to End Notched Flexure configurations for the characterization of pure mode II fracture toughness of Fibre Reinforced Polymer composites. TCT is supposed to reproduce a pure Mode II failure mechanism while avoiding the frictional energy dissipation between the flanks of a starter crack. The TCT geometry is that of a unidirectional tensile sample where a number of embedded plies, centered on the middle plane, are cut in the transverse fibres direction. The tensile loading should then activate four symmetric fronts of mode II delamination from the transverse cut tips. The present work describes the implementation of two full fiel…

Settore ING-IND/14 - Progettazione Meccanica E Costruzione Di MacchineSettore ING-IND/22 - Scienza E Tecnologia Dei MaterialiSettore ING-IND/04 - Costruzioni E Strutture AerospazialiSettore ING-IND/02 - Costruzioni E Impianti Navali E MariniMode II Delamination Fracture Toughness Transverse Crack Tension specimen Thermoelastic Stress Analysis Digital Image Correlation
researchProduct