Print Email Facebook Twitter Compressive Failure Behaviour of Novel Aramid Fibres Title Compressive Failure Behaviour of Novel Aramid Fibres Author Knijnenberg, A. Faculty Aerospace Engineering Department Fundamentals of Advanced Materials Date 2009-03-27 Abstract Since the development of the first truly synthetic fibres in the late nineteenth century, scientific efforts have lead to large variety of fibres ranging from fibres for textile applications to high performance fibres used as engineering materials. Examples of high performance fibres that are often used in engineering applications are aramid, glass and carbon fibres. Based on specific tensile properties polymer fibres such as aramids outperform glass and carbon fibres, but a major concern is, however, their behaviour under compressive loading. The work presented in this thesis describes a novel approach to increase the compressive strength of aramid (or PPTA) fibres and to characterise the compressive failure behaviour of these new fibres in more detail. The new concept is based on the addition of PPTA-compatible oligomers containing reactive end-groups. These newly designed oligomers can be considered to act as a molecular ‘glue’ to locally increase lateral cohesion and hence to increase the compressive properties without reducing the axial tensile properties. Subject aramidcompressive failurecompressive strengthfibrelateral interactionoligomerradial texture To reference this document use: http://resolver.tudelft.nl/uuid:f0228918-d5c2-46ed-adf0-976dd825050a ISBN 9789090240787 Part of collection Institutional Repository Document type doctoral thesis Rights (c) 2009 Knijnenberg, A. Files PDF KNIJNENBERG_20090327.pdf 5.43 MB PDF KNIJNENBERG_PROPOSITIONS_ ... 090327.pdf 95.65 KB Close viewer /islandora/object/uuid:f0228918-d5c2-46ed-adf0-976dd825050a/datastream/OBJ1/view