The influence of size effects and dynamic loading on the fracture toughness of commercial GRP materials
Source abstract
Abstract
The influence of specimen thickness and the effect of dynamic rates of testing on fracture toughness behaviour of laboratory-prepared and commercial glass-reinforced plastic materials have been investigated. The four materials, from different sources, gave similar fracture toughness data. The results show that the fracture toughness increases with specimen size, for specimens with nominal thicknesses in the range 10 to 25 mm; this is thought to be associated with the length of fibres in the testpiece ligament. Dynamic tests produced higher fracture toughness values than those obtained statically. This was believed to be due to a change in fracture mode from fibre fracture to fibre pull-out.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Mechanical Behavior of Composites · 3D IC and TSV technologies · Electronic Packaging and Soldering Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (12)
Show source-provided references
1. A testing protocol for conducting J crack growth resistance curve tests on plastics. Prepared on behalf of the ESIS Technical Committee on Polymers and Composites, 1995.
2. Rate effects on Mode I interlaminar fracture toughness in composite materials10.1177/002199838702100706 ↗
3. Height tapered double cantilever beam specimen for study of rate effects on fracture toughness of composites
4. Rate dependence of mode I fracture behaviour in carbon fibre–epoxy composite laminates10.1016/S0266-3538(97)00176-0 ↗
5. Mechanisms for rate effects on interlaminar fracture toughness of carbon–epoxy and carbon–PEEK composites10.1007/BF01139070 ↗
6. The influence of loading rate on the mode II interlaminar fracture toughness of composite materials10.1177/002199839703101401 ↗
7. Mall S, Law GE, Katouzian M. Loading rate effect on interlaminar fracture toughness of a thermoplastic composite. Proceedings of the 1986 Spring Conference on Experimental Mechanics, New Orleans. Society of Experimental Mechanics, 1986.
8. Trevett AS. Health and Safety Laboratory internal report MM/95/20, 1995.
9. Thomason JL, Vlug MA. The influence of fibre length and concentration on the properties of glass fibre reinforced polypropylene. 3rd International Conference on the Deformation and Fracture of Composites, Guildford, 1995. p. 46.
10. BS 7448 Part 2: 1997. Fracture mechanics toughness tests part 2. Method for determination of K1C, critical CTOD and critical J values of welds in metallic materials, 1997.
11. A tensile testing technique for fibre reinforced composites at impact rates of strain10.1007/BF00542078 ↗
12. Effect of strain rate on the tensile failure of woven reinforced polyester resin composites