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Experimental Mechanics

, Volume 44, Issue 4, pp 336–353 | Cite as

Local time—Temperature-dependent deformation of a woven composite

  • P. Shrotriya
  • N. R. Sottos
Article
  • 84 Downloads

Abstract

Moiré interferometry is utilized to investigate the time-temperature-dependent deformation of a woven composite substrate used in multilayer circuit board applications. Creep tests are performed at temperatures ranging from 27 to 70°C, and the resulting longitudinal and transverse displacement fields are measured via moiré interferometry. Measured displacement fields reveal the influence of fabric architecture on woven composite response. The deformation fields in the plane of the composite for loading along both warp and fill directions consist of a periodic arrangement of high-strain and low-strain regions in accordance to the interlacing bundle architecture. The deformation fields over the cross-section of the composite indicate that neighboring unit cells are subjected to equal and opposite bending moment even when the composite is loaded in uniaxial tension.

Key words

Woven composite time-temperature-dependent response Moiré interferometry creep and stress relaxation multilayer circuit boards textile composites 

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Copyright information

© Society for Experimental Mechanics 2004

Authors and Affiliations

  • P. Shrotriya
    • 1
  • N. R. Sottos
    • 2
  1. 1.Department of Theoretical and Applied MechanicsUniversity of Illinois at Urbana-ChampaignUrbanaIllinoisUSA
  2. 2.Mechanical Engineering DepartmentIowa State UniversityAmesIowaUSA

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