Compression Tests of Unidirectional Composite Laminates with Two Delaminations

Shun Fa Hwang; Horng Ming Chen

doi:10.4028/www.scientific.net/KEM.306-308.381

Paper Titles

The Study in the Displacement Field near Crack of the Plexiglass by Frequency Domination Method of the White Speckle
p.357

Delamination Growth in Ball Grid Array Electronic Package
p.363

The Strain Energy Release Rate of a Bi-Material Beam with Interfacial Crack
p.369

Damage Characterization of Delamination in Smart Composite Laminates Based on Smooth Transition of Displacement Field
p.375

Compression Tests of Unidirectional Composite Laminates with Two Delaminations
p.381

Evaluation of Adhesive Strengths of Plasma-Sprayed CoNiCrAlY Coatings Using an Indentation Method
p.387

Effects of Thickness and Delaminating on Fracture of High Strength and High Toughness Pipeline Steel
p.393

Damage Evaluation of Subsurface Defect in Sandwich by Phase-Shifting Digital Shearography
p.399

A High Notch Toughness Agglomerated Flux for Submerged Arc Welding of Pipeline Steel
p.405

HomeKey Engineering MaterialsKey Engineering Materials Vols. 306-308Compression Tests of Unidirectional Composite...

Compression Tests of Unidirectional Composite Laminates with Two Delaminations

Abstract:

Compression tests are conducted on composite laminates consisting of 16 unidirectional carbon/epoxy layers with two through-width delaminations. Two types of delamination length and location are considered. One is that a short delamination is located at the middle surface along the thickness direction and a long delamination is positioned between the second layer and the third layer. The other is that a long delamination is located at the middle surface and the position of the short elamination is between the second layer and the third layer. The results indicate that if the long delamination is close to the surface of the laminate, the inner, short delamination has no effect on the critical buckling stresses. However, the presence of inner, short delamination may significantly change the critical delamination growth stresses. If the short delamination is above the long delamination that is located on the middle surface, the presence of the short delamination may significantly reduce the critical buckling stresses. But its effects on the critical delamination growth stresses are minor.